diff --git a/contrib/bc/NEWS.md b/contrib/bc/NEWS.md index 6dff6822fb16..44b17b060f5c 100644 --- a/contrib/bc/NEWS.md +++ b/contrib/bc/NEWS.md @@ -1,1494 +1,1500 @@ # News +## 6.5.0 + +This is a production release that fixes an infinite loop bug in `root()` and +`cbrt()`, fixes a bug with `BC_LINE_LENGTH=0`, and adds the `fib()` function to +the extended math library to calculate Fibonacci numbers. + ## 6.4.0 This is a production release that fixes a `read()`/`?` bug and adds features to `bcl`. The bug was that multiple read calls could repeat old data. The new features in `bcl` are functions to preserve `BclNumber` arguments and not free them. ***WARNING for `bcl` Users***: The `bcl_rand_seedWithNum()` function used to not consume its arguments. Now it does. This change could have made this version `7.0.0`, but I'm 99.9% confident that there are no `bcl` users, or if there are, they probably don't use the PRNG. So I took a risk and didn't update the major version. `bcl` now includes more capacity to check for invalid numbers when built to run under Valgrind. ## 6.3.1 This is a production release that fixes a `bc` dependency loop for minimal environments and Linux from Scratch. ## 6.3.0 This is a production release with a couple of fixes for manuals and a new feature for `dc`: there is now a command to query whether extended registers are enabled or not. Users who don't care do not need to upgrade. ## 6.2.6 This is a production release that fixes an install bug that affected locale installation of all locales when using `mksh`. Users do ***NOT*** need to upgrade if they don't use `mksh` and/or don't need to install all locales. ## 6.2.5 This is a production release that fixes a test bug that affected Android and `mksh`. Users do ***NOT*** need to upgrade unless they use `mksh` or another affected shell and need to run the test suite. ## 6.2.4 This is a production release that fixes a test failure that happens when `tests/bc/scripts/timeconst.bc` doesn't exist. This should only affect packagers. This bug happened because I forgot something I added in the previous release: better error checking in tests to help packagers. Unfortunately, I was too zealous with the error checking. ## 6.2.3 This is a production release that moves `bc` to . That's all it does: update links. Users do ***NOT*** need to upgrade; there are redirects that will stay in place indefinitely. This release is only for new users. ## 6.2.2 This is a production release that fixes a bug. The bug was that if an array element was used as a parameter, and then a later parameter had the same name as the array whose element was used, `bc` would grab the element from the new array parameter, not the actual element from before the function call. ## 6.2.1 This is a production release with one bug fix for a memory bug in history. ## 6.2.0 This is a production release with a new feature and a few bug fixes. The bug fixes include: * A crash when `bc` and `dc` are built using editline, but history is not activated. * A missing local in the `uint*()` family of functions in the extended math library. * A failure to clear the tail call list in `dc` on error. * A crash when attempting to swap characters in command-line history when no characters exist. * `SIGWINCH` was activated even when history was not. The new feature is that stack traces are now given for runtime errors. In debug mode, the C source file and line of errors are given as well. ## 6.1.1 This is a production release that fixes a build issue with predefined builds and generated tests. ## 6.1.0 This is a production release that fixes a discrepancy from the `bc` standard, a couple of memory bugs, and adds new features. The discrepancy from the `bc` standard was with regards to the behavior of the `quit` command. This `bc` used to quit whenever it encountered `quit` during parsing, even if it was parsing a full file. Now, `bc` only quits when encountering `quit` *after* it has executed all executable statements up to that point. This behavior is slightly different from GNU `bc`, but users will only notice the difference if they put `quit` on the same line as other statements. The first memory bug could be reproduced by assigning a string to a non-local variable in a function, then redefining the function with use of the same non-local variable, which would still refer to a string in the previous version of the function. The second memory bug was caused by passing an array argument to the `asciify()` built-in function. In certain cases, that was wrongly allowed, and the interpreter just assumed everything was correct and accessed memory. Now that arrays are allowed as arguments (see below), this is not an issue. The first feature was the addition of the `is_number()` built-in function (`u` in `dc`) that returns 1 if the runtime argument is a number and 0 otherwise. The second feature was the addition of the `is_string()` built-in function (`t` in `dc`) that returns 1 if the runtime argument is a string and 0 otherwise. These features were added because I realized that type-checking is necessary now that strings can be assigned to variables in `bc` and because they've always been assignable to variables in `dc`. The last added feature is the ability of the `asciify()` built-in function in `bc` to convert a full array of numbers into a string. This means that character-by-character printing will not be necessary, and more strings than just single-character ones will be able to be created. ## 6.0.4 This is a production release that most users will not need to upgrade to. This fixes a build bug for `bcl` only on OpenBSD. Users that do not need `bcl` or have not run into build errors with `bcl` do ***NOT*** need to upgrade. ## 6.0.3 This is a production release that fixes a build bug for cross-compilation. Users that do not need cross-compilation do ***NOT*** need to upgrade. ## 6.0.2 This is a production release that fixes two bugs: * The `-l` option overrode the `-S` option. * A double-free and crash when sending a `SIGINT` while executing expressions given on the command-line. ## 6.0.1 This is a production release that fixes memory bugs and memory leaks in `bcl`. Users that do not use `bcl` (use only `bc` and/or `dc`) do ***NOT*** need to upgrade. These happened because I was unaware that the `bcl` test was not hooked into the Valgrind test infrastructure. Then, when I ran the release script, which tests everything under Valgrind (or so I thought), it caught nothing, and I thought it was safe. But it was not. Nevertheless, I have now run it under Valgrind and fixed all of the memory bugs (caused by not using `memset()` where I should have but previously didn't have to) and memory leaks. ## 6.0.0 This is a production release that fixes an oversight in the `bc` parser (that sometimes caused the wrong error message) and adds a feature for compatibility with the BSD `bc` and `dc`: turning off digit clamping when parsing numbers. The default for clamping can be set during the build (see the [build manual][13]), it can be set with the `BC_DIGIT_CLAMP` and `DC_DIGIT_CLAMP` environment variables, and it can be set with the `-c` and `-C` command-line options. Turning off clamping was also added to the `bcl` library. In addition, signal handling was removed from the `bcl` library in order to add the capability for multi-threading. This required a major version bump. I apologize to all library users (I don't know of any), but signals and threads do not play well together. To help with building, a convenience option (`-p`) to `configure.sh` was added to build a `bc` and `dc` that is by default compatible with either the BSD `bc` and `dc` or the GNU `bc` and `dc`. ## 5.3.3 This is a production release that fixes a build problem in the FreeBSD base system. All other users do **NOT** need to upgrade. ## 5.3.2 This is a production release that fixes prompt bugs with editline and readline where the `BC_PROMPT` environment variable was not being respected. This also fixes editline and readline output on `EOF`. ## 5.3.1 This is a production release that fixes a build problem in the FreeBSD base system, as well as a problem in the `en_US` locale. If you don't have problems with either, you do not need to upgrade. ## 5.3.0 This is a production release that adds features and has a few bug fixes. First, support for editline and readline history has been added. To use editline, pass `-e` to `configure.sh`, and to use readline, pass `-r`. Second, history support for Windows has been fixed and re-enabled. Third, command-line options to set `scale`, `ibase`, `obase`, and `seed` were added. This was requested long ago, and I originally disagreed with the idea. Fourth, the manuals had typos and were missing information. That has been fixed. Fifth, the manuals received different formatting to be more readable as manpages. ## 5.2.5 This is a production release that fixes this `bc`'s behavior on `^D` to match GNU `bc`. ## 5.2.4 This is a production release that fixes two bugs in history: * Without prompt, the cursor could not be placed on the first character in a line. * Home and End key handling in `tmux` was fixed. Any users that do not care about these improvements do not need to upgrade. ## 5.2.3 This is a production release that fixes one bug, a parse error when passing a file to `bc` using `-f` if that file had a multiline comment or string in it. ## 5.2.2 This is a production release that fixes one bug, a segmentation fault if `argv[0]` equals `NULL`. This is not a critical bug; there will be no vulnerability as far as I can tell. There is no need to update if you do not wish to. ## 5.2.1 This is a production release that fixes two parse bugs when in POSIX standard mode. One of these bugs was due to a quirk of the POSIX grammar, and the other was because `bc` was too strict. ## 5.2.0 This is a production release that adds a new feature, fixes some bugs, and adds out-of-source builds and a `pkg-config` file for `bcl`. The new feature is the ability to turn off exiting on expressions. It is also possible to set the default using `configure.sh`. This behavior used to exist with the `BC_EXPR_EXIT` environment variable, which is now used again. Bugs fixed include: * Some possible race conditions with error handling. * Install and uninstall targets for `bcl` did not work. ## 5.1.1 This is a production release that completes a bug fix from `5.1.0`. The bug exists in all versions of `bc`. The bug was that `if` statements without `else` statements would not be handled correctly at the end of files or right before a function definition. ## 5.1.0 This is a production release with some fixes and new features. * Fixed a bug where an `if` statement without an `else` before defining a function caused an error. * Fixed a bug with the `bc` banner and `-q`. * Fixed a bug on Windows where files were not read correctly. * Added a command-line flag (`-z`) to make `bc` and `dc` print leading zeroes on numbers `-1 < x < 1`. * Added four functions to `lib2.bc` (`plz()`, `plznl()`, `pnlz()`, and `pnlznl()`) to allow printing numbers with or without leading zeros, despite the use of `-z` or not. * Added builtin functions to query global state like line length, global stacks, and leading zeroes. * Added a command-line flag (`-L`) to disable wrapping when printing numbers. * Improved builds on Windows. ## 5.0.2 This is a production release with one fix for a flaky test. If you have not experienced problems with the test suite, you do ***NOT*** need to upgrade. The test was one that tested whether `bc` fails gracefully when it can't allocate memory. Unfortunately, there are cases when Linux and FreeBSD lie and pretend to allocate the memory. The reason they do this is because a lot of programs don't use all of the memory they allocate, so those OS's usually get away with it. However, this `bc` uses all of the memory it allocates (at least at page granularity), so when it tries to use the memory, FreeBSD and Linux kill it. This only happens sometimes, however. Other times (on my machine), they do, in fact, refuse the request. So I changed the test to not test for that because I think the graceful failure code won't really change much. ## 5.0.1 This is a production release with two fixes: * Fix for the build on Mac OSX. * Fix for the build on Android. Users that do not use those platforms do ***NOT*** need to update. ## 5.0.0 This is a major production release with several changes: * Added support for OpenBSD's `pledge()` and `unveil()`. * Fixed print bug where a backslash newline combo was printed even if only one digit was left, something I blindly copied from GNU `bc`, like a fool. * Fixed bugs in the manuals. * Fixed a possible multiplication overflow in power. * Temporary numbers are garbage collected if allocation fails, and the allocation is retried. This is to make `bc` and `dc` more resilient to running out of memory. * Limited the number of temporary numbers and made the space for them static so that allocating more space for them cannot fail. * Allowed integers with non-zero `scale` to be used with power, places, and shift operators. * Added greatest common divisor and least common multiple to `lib2.bc`. * Added `SIGQUIT` handling to history. * Added a command to `dc` (`y`) to get the length of register stacks. * Fixed multi-digit bugs in `lib2.bc`. * Removed the no prompt build option. * Created settings that builders can set defaults for and users can set their preferences for. This includes the `bc` banner, resetting on `SIGINT`, TTY mode, and prompt. * Added history support to Windows. * Fixed bugs with the handling of register names in `dc`. * Fixed bugs with multi-line comments and strings in both calculators. * Added a new error type and message for `dc` when register stacks don't have enough items. * Optimized string allocation. * Made `bc` and `dc` UTF-8 capable. * Fixed a bug with `void` functions. * Fixed a misspelled symbol in `bcl`. This is technically a breaking change, which requires this to be `5.0.0`. * Added the ability for users to get the copyright banner back. * Added the ability for users to have `bc` and `dc` quit on `SIGINT`. * Added the ability for users to disable prompt and TTY mode by environment variables. * Added the ability for users to redefine keywords. This is another reason this is `5.0.0`. * Added `dc`'s modular exponentiation and divmod to `bc`. * Added the ability to assign strings to variables and array elements and pass them to functions in `bc`. * Added `dc`'s asciify command and stream printing to `bc`. * Added a command to `dc` (`Y`) to get the length of an array. * Added a command to `dc` (`,`) to get the depth of the execution stack. * Added bitwise and, or, xor, left shift, right shift, reverse, left rotate, right rotate, and mod functions to `lib2.bc`. * Added the functions `s2u(x)` and `s2un(x,n)`, to `lib2.bc`. ## 4.0.2 This is a production release that fixes two bugs: 1. If no files are used and the first statement on `stdin` is invalid, `scale` would not be set to `20` even if `-l` was used. 2. When using history, `bc` failed to respond properly to `SIGSTOP` and `SIGTSTP`. ## 4.0.1 This is a production release that only adds one thing: flushing output when it is printed with a print statement. ## 4.0.0 This is a production release with many fixes, a new command-line option, and a big surprise: * A bug was fixed in `dc`'s `P` command where the item on the stack was *not* popped. * Various bugs in the manuals have been fixed. * A known bug was fixed where history did not interact well with prompts printed by user code without newlines. * A new command-line option, `-R` and `--no-read-prompt` was added to disable just the prompt when using `read()` (`bc`) or `?` (`dc`). * And finally, **official support for Windows was added**. The last item is why this is a major version bump. Currently, only one set of build options (extra math and prompt enabled, history and NLS/locale support disabled, both calculators enabled) is supported on Windows. However, both debug and release builds are supported. In addition, Windows builds are supported for the the library (`bcl`). For more details about how to build on Windows, see the [README][5] or the [build manual][13]. ## 3.3.4 This is a production release that fixes a small bug. The bug was that output was not flushed before a `read()` call, so prompts without a newline on the end were not flushed before the `read()` call. This is such a tiny bug that users only need to upgrade if they are affected. ## 3.3.3 This is a production release with one tweak and fixes for manuals. The tweak is that `length(0)` returns `1` instead of `0`. In `3.3.1`, I changed it so `length(0.x)`, where `x` could be any number of digits, returned the `scale`, but `length(0)` still returned `0` because I believe that `0` has `0` significant digits. After request of FreeBSD and considering the arguments of a mathematician, compatibility with other `bc`'s, and the expectations of users, I decided to make the change. The fixes for manuals fixed a bug where `--` was rendered as `-`. ## 3.3.2 This is a production release that fixes a divide-by-zero bug in `root()` in the [extended math library][16]. All previous versions with `root()` have the bug. ## 3.3.1 This is a production release that fixes a bug. The bug was in the reporting of number length when the value was 0. ## 3.3.0 This is a production release that changes one behavior and fixes documentation bugs. The changed behavior is the treatment of `-e` and `-f` when given through `BC_ENV_ARGS` or `DC_ENV_ARGS`. Now `bc` and `dc` do not exit when those options (or their equivalents) are given through those environment variables. However, `bc` and `dc` still exit when they or their equivalents are given on the command-line. ## 3.2.7 This is a production release that removes a small non-portable shell operation in `configure.sh`. This problem was only noticed on OpenBSD, not FreeBSD or Linux. Non-OpenBSD users do ***NOT*** need to upgrade, although NetBSD users may also need to upgrade. ## 3.2.6 This is a production release that fixes the build on FreeBSD. There was a syntax error in `configure.sh` that the Linux shell did not catch, and FreeBSD depends on the existence of `tests/all.sh`. All users that already upgraded to `3.2.5` should update to this release, with my apologies for the poor release of `3.2.5`. Other users should skip `3.2.5` in favor of this version. ## 3.2.5 This is a production release that fixes several bugs and adds a couple small things. The two most important bugs were bugs that causes `dc` to access memory out-of-bounds (crash in debug builds). This was found by upgrading to `afl++` from `afl`. Both were caused by a failure to distinguish between the same two cases. Another bug was the failure to put all of the licenses in the `LICENSE.md` file. Third, some warnings by `scan-build` were found and eliminated. This needed one big change: `bc` and `dc` now bail out as fast as possible on fatal errors instead of unwinding the stack. Fourth, the pseudo-random number now attempts to seed itself with `/dev/random` if `/dev/urandom` fails. Finally, this release has a few quality-of-life changes to the build system. The usage should not change at all; the only thing that changed was making sure the `Makefile.in` was written to rebuild properly when headers changed and to not rebuild when not necessary. ## 3.2.4 This is a production release that fixes a warning on `gcc` 6 or older, which does not have an attribute that is used. Users do ***NOT*** need to upgrade if they don't use `gcc` 6 or older. ## 3.2.3 This is a production release that fixes a bug in `gen/strgen.sh`. I recently changed `gen/strgen.c`, but I did not change `gen/strgen.sh`. Users that do not use `gen/strgen.sh` do not need to upgrade. ## 3.2.2 This is a production release that fixes a portability bug in `configure.sh`. The bug was using the GNU `find` extension `-wholename`. ## 3.2.1 This is a production release that has one fix for `bcl(3)`. It is technically not a bug fix since the behavior is undefined, but the `BclNumber`s that `bcl_divmod()` returns will be set to `BCL_ERROR_INVALID_NUM` if there is an error. Previously, they were not set. ## 3.2.0 This is a production release that has one bug fix and a major addition. The bug fix was a missing `auto` variable in the bessel `j()` function in the math library. The major addition is a way to build a version of `bc`'s math code as a library. This is done with the `-a` option to `configure.sh`. The API for the library can be read in `./manuals/bcl.3.md` or `man bcl` once the library is installed with `make install`. This library was requested by developers before I even finished version 1.0, but I could not figure out how to do it until now. If the library has API breaking changes, the major version of `bc` will be incremented. ## 3.1.6 This is a production release that fixes a new warning from Clang 12 for FreeBSD and also removes some possible undefined behavior found by UBSan that compilers did not seem to take advantage of. Users do ***NOT*** need to upgrade, if they do not want to. ## 3.1.5 This is a production release that fixes the Chinese locales (which caused `bc` to crash) and a crash caused by `bc` executing code when it should not have been able to. ***ALL USERS SHOULD UPGRADE.*** ## 3.1.4 This is a production release that fixes one bug, changes two behaviors, and removes one environment variable. The bug is like the one in the last release except it applies if files are being executed. I also made the fix more general. The behavior that was changed is that `bc` now exits when given `-e`, `-f`, `--expression` or `--file`. However, if the last one of those is `-f-` (using `stdin` as the file), `bc` does not exit. If `-f-` exists and is not the last of the `-e` and `-f` options (and equivalents), `bc` gives a fatal error and exits. Next, I removed the `BC_EXPR_EXIT` and `DC_EXPR_EXIT` environment variables since their use is not needed with the behavior change. Finally, I made it so `bc` does not print the header, though the `-q` and `--quiet` options were kept for compatibility with GNU `bc`. ## 3.1.3 This is a production release that fixes one minor bug: if `bc` was invoked like the following, it would error: ``` echo "if (1 < 3) 1" | bc ``` Unless users run into this bug, they do not need to upgrade, but it is suggested that they do. ## 3.1.2 This is a production release that adds a way to install *all* locales. Users do ***NOT*** need to upgrade. For package maintainers wishing to make use of the change, just pass `-l` to `configure.sh`. ## 3.1.1 This is a production release that adds two Spanish locales. Users do ***NOT*** need to upgrade, unless they want those locales. ## 3.1.0 This is a production release that adjusts one behavior, fixes eight bugs, and improves manpages for FreeBSD. Because this release fixes bugs, **users and package maintainers should update to this version as soon as possible**. The behavior that was adjusted was how code from the `-e` and `-f` arguments (and equivalents) were executed. They used to be executed as one big chunk, but in this release, they are now executed line-by-line. The first bug fix in how output to `stdout` was handled in `SIGINT`. If a `SIGINT` came in, the `stdout` buffer was not correctly flushed. In fact, a clean-up function was not getting called. This release fixes that bug. The second bug is in how `dc` handled input from `stdin`. This affected `bc` as well since it was a mishandling of the `stdin` buffer. The third fixed bug was that `bc` and `dc` could `abort()` (in debug mode) when receiving a `SIGTERM`. This one was a race condition with pushing and popping items onto and out of vectors. The fourth bug fixed was that `bc` could leave extra items on the stack and thus, not properly clean up some memory. (The memory would still get `free()`'ed, but it would not be `free()`'ed when it could have been.) The next two bugs were bugs in `bc`'s parser that caused crashes when executing the resulting code. The last two bugs were crashes in `dc` that resulted from mishandling of strings. The manpage improvement was done by switching from [ronn][20] to [Pandoc][21] to generate manpages. Pandoc generates much cleaner manpages and doesn't leave blank lines where they shouldn't be. ## 3.0.3 This is a production release that adds one new feature: specific manpages. Before this release, `bc` and `dc` only used one manpage each that referred to various build options. This release changes it so there is one manpage set per relevant build type. Each manual only has information about its particular build, and `configure.sh` selects the correct set for install. ## 3.0.2 This is a production release that adds `utf8` locale symlinks and removes an unused `auto` variable from the `ceil()` function in the [extended math library][16]. Users do ***NOT*** need to update unless they want the locales. ## 3.0.1 This is a production release with two small changes. Users do ***NOT*** need to upgrade to this release; however, if they haven't upgraded to `3.0.0` yet, it may be worthwhile to upgrade to this release. The first change is fixing a compiler warning on FreeBSD with strict warnings on. The second change is to make the new implementation of `ceil()` in `lib2.bc` much more efficient. ## 3.0.0 *Notes for package maintainers:* *First, the `2.7.0` release series saw a change in the option parsing. This made me change one error message and add a few others. The error message that was changed removed one format specifier. This means that `printf()` will seqfault on old locale files. Unfortunately, `bc` cannot use any locale files except the global ones that are already installed, so it will use the previous ones while running tests during install. **If `bc` segfaults while running arg tests when updating, it is because the global locale files have not been replaced. Make sure to either prevent the test suite from running on update or remove the old locale files before updating.** (Removing the locale files can be done with `make uninstall` or by running the [`locale_uninstall.sh`][22] script.) Once this is done, `bc` should install without problems.* *Second, **the option to build without signal support has been removed**. See below for the reasons why.* This is a production release with some small bug fixes, a few improvements, three major bug fixes, and a complete redesign of `bc`'s error and signal handling. **Users and package maintainers should update to this version as soon as possible.** The first major bug fix was in how `bc` executed files. Previously, a whole file was parsed before it was executed, but if a function is defined *after* code, especially if the function definition was actually a redefinition, and the code before the definition referred to the previous function, this `bc` would replace the function before executing any code. The fix was to make sure that all code that existed before a function definition was executed. The second major bug fix was in `bc`'s `lib2.bc`. The `ceil()` function had a bug where a `0` in the decimal place after the truncation position, caused it to output the wrong numbers if there was any non-zero digit after. The third major bug is that when passing parameters to functions, if an expression included an array (not an array element) as a parameter, it was accepted, when it should have been rejected. It is now correctly rejected. Beyond that, this `bc` got several improvements that both sped it up, improved the handling of signals, and improved the error handling. First, the requirements for `bc` were pushed back to POSIX 2008. `bc` uses one function, `strdup()`, which is not in POSIX 2001, and it is in the X/Open System Interfaces group 2001. It is, however, in POSIX 2008, and since POSIX 2008 is old enough to be supported anywhere that I care, that should be the requirement. Second, the BcVm global variable was put into `bss`. This actually slightly reduces the size of the executable from a massive code shrink, and it will stop `bc` from allocating a large set of memory when `bc` starts. Third, the default Karatsuba length was updated from 64 to 32 after making the optimization changes below, since 32 is going to be better than 64 after the changes. Fourth, Spanish translations were added. Fifth, the interpreter received a speedup to make performance on non-math-heavy scripts more competitive with GNU `bc`. While improvements did, in fact, get it much closer (see the [benchmarks][19]), it isn't quite there. There were several things done to speed up the interpreter: First, several small inefficiencies were removed. These inefficiencies included calling the function `bc_vec_pop(v)` twice instead of calling `bc_vec_npop(v, 2)`. They also included an extra function call for checking the size of the stack and checking the size of the stack more than once on several operations. Second, since the current `bc` function is the one that stores constants and strings, the program caches pointers to the current function's vectors of constants and strings to prevent needing to grab the current function in order to grab a constant or a string. Third, `bc` tries to reuse `BcNum`'s (the internal representation of arbitary-precision numbers). If a `BcNum` has the default capacity of `BC_NUM_DEF_SIZE` (32 on 64-bit and 16 on 32-bit) when it is freed, it is added to a list of available `BcNum`'s. And then, when a `BcNum` is allocated with a capacity of `BC_NUM_DEF_SIZE` and any `BcNum`'s exist on the list of reusable ones, one of those ones is grabbed instead. In order to support these changes, the `BC_NUM_DEF_SIZE` was changed. It used to be 16 bytes on all systems, but it was changed to more closely align with the minimum allocation size on Linux, which is either 32 bytes (64-bit musl), 24 bytes (64-bit glibc), 16 bytes (32-bit musl), or 12 bytes (32-bit glibc). Since these are the minimum allocation sizes, these are the sizes that would be allocated anyway, making it worth it to just use the whole space, so the value of `BC_NUM_DEF_SIZE` on 64-bit systems was changed to 32 bytes. On top of that, at least on 64-bit, `BC_NUM_DEF_SIZE` supports numbers with either 72 integer digits or 45 integer digits and 27 fractional digits. This should be more than enough for most cases since `bc`'s default `scale` values are 0 or 20, meaning that, by default, it has at most 20 fractional digits. And 45 integer digits are *a lot*; it's enough to calculate the amount of mass in the Milky Way galaxy in kilograms. Also, 72 digits is enough to calculate the diameter of the universe in Planck lengths. (For 32-bit, these numbers are either 32 integer digits or 12 integer digits and 20 fractional digits. These are also quite big, and going much bigger on a 32-bit system seems a little pointless since 12 digits is just under a trillion and 20 fractional digits is still enough for about any use since `10^-20` light years is just under a millimeter.) All of this together means that for ordinary uses, and even uses in scientific work, the default number size will be all that is needed, which means that nearly all, if not all, numbers will be reused, relieving pressure on the system allocator. I did several experiments to find the changes that had the most impact, especially with regard to reusing `BcNum`'s. One was putting `BcNum`'s into buckets according to their capacity in powers of 2 up to 512. That performed worse than `bc` did in `2.7.2`. Another was putting any `BcNum` on the reuse list that had a capacity of `BC_NUM_DEF_SIZE * 2` and reusing them for `BcNum`'s that requested `BC_NUM_DEF_SIZE`. This did reduce the amount of time spent, but it also spent a lot of time in the system allocator for an unknown reason. (When using `strace`, a bunch more `brk` calls showed up.) Just reusing `BcNum`'s that had exactly `BC_NUM_DEF_SIZE` capacity spent the smallest amount of time in both user and system time. This makes sense, especially with the changes to make `BC_NUM_DEF_SIZE` bigger on 64-bit systems, since the vast majority of numbers will only ever use numbers with a size less than or equal to `BC_NUM_DEF_SIZE`. Last of all, `bc`'s signal handling underwent a complete redesign. (This is the reason that this version is `3.0.0` and not `2.8.0`.) The change was to move from a polling approach to signal handling to an interrupt-based approach. Previously, every single loop condition had a check for signals. I suspect that this could be expensive when in tight loops. Now, the signal handler just uses `longjmp()` (actually `siglongjmp()`) to start an unwinding of the stack until it is stopped or the stack is unwound to `main()`, which just returns. If `bc` is currently executing code that cannot be safely interrupted (according to POSIX), then signals are "locked." The signal handler checks if the lock is taken, and if it is, it just sets the status to indicate that a signal arrived. Later, when the signal lock is released, the status is checked to see if a signal came in. If so, the stack unwinding starts. This design eliminates polling in favor of maintaining a stack of `jmp_buf`'s. This has its own performance implications, but it gives better interaction. And the cost of pushing and popping a `jmp_buf` in a function is paid at most twice. Most functions do not pay that price, and most of the rest only pay it once. (There are only some 3 functions in `bc` that push and pop a `jmp_buf` twice.) As a side effect of this change, I had to eliminate the use of `stdio.h` in `bc` because `stdio` does not play nice with signals and `longjmp()`. I implemented custom I/O buffer code that takes a fraction of the size. This means that static builds will be smaller, but non-static builds will be bigger, though they will have less linking time. This change is also good because my history implementation was already bypassing `stdio` for good reasons, and unifying the architecture was a win. Another reason for this change is that my `bc` should *always* behave correctly in the presence of signals like `SIGINT`, `SIGTERM`, and `SIGQUIT`. With the addition of my own I/O buffering, I needed to also make sure that the buffers were correctly flushed even when such signals happened. For this reason, I **removed the option to build without signal support**. As a nice side effect of this change, the error handling code could be changed to take advantage of the stack unwinding that signals used. This means that signals and error handling use the same code paths, which means that the stack unwinding is well-tested. (Errors are tested heavily in the test suite.) It also means that functions do not need to return a status code that ***every*** caller needs to check. This eliminated over 100 branches that simply checked return codes and then passed that return code up the stack if necessary. The code bloat savings from this is at least 1700 bytes on `x86_64`, *before* taking into account the extra code from removing `stdio.h`. ## 2.7.2 This is a production release with one major bug fix. The `length()` built-in function can take either a number or an array. If it takes an array, it returns the length of the array. Arrays can be passed by reference. The bug is that the `length()` function would not properly dereference arrays that were references. This is a bug that affects all users. **ALL USERS SHOULD UPDATE `bc`**. ## 2.7.1 This is a production release with fixes for new locales and fixes for compiler warnings on FreeBSD. ## 2.7.0 This is a production release with a bug fix for Linux, new translations, and new features. Bug fixes: * Option parsing in `BC_ENV_ARGS` was broken on Linux in 2.6.1 because `glibc`'s `getopt_long()` is broken. To get around that, and to support long options on every platform, an adapted version of [`optparse`][17] was added. Now, `bc` does not even use `getopt()`. * Parsing `BC_ENV_ARGS` with quotes now works. It isn't the smartest, but it does the job if there are spaces in file names. The following new languages are supported: * Dutch * Polish * Russian * Japanes * Simplified Chinese All of these translations were generated using [DeepL][18], so improvements are welcome. There is only one new feature: **`bc` now has a built-in pseudo-random number generator** (PRNG). The PRNG is seeded, making it useful for applications where `/dev/urandom` does not work because output needs to be reproducible. However, it also uses `/dev/urandom` to seed itself by default, so it will start with a good seed by default. It also outputs 32 bits on 32-bit platforms and 64 bits on 64-bit platforms, far better than the 15 bits of C's `rand()` and `bash`'s `$RANDOM`. In addition, the PRNG can take a bound, and when it gets a bound, it automatically adjusts to remove bias. It can also generate numbers of arbitrary size. (As of the time of release, the largest pseudo-random number generated by this `bc` was generated with a bound of `2^(2^20)`.) ***IMPORTANT: read the [`bc` manual][9] and the [`dc` manual][10] to find out exactly what guarantees the PRNG provides. The underlying implementation is not guaranteed to stay the same, but the guarantees that it provides are guaranteed to stay the same regardless of the implementation.*** On top of that, four functions were added to `bc`'s [extended math library][16] to make using the PRNG easier: * `frand(p)`: Generates a number between `[0,1)` to `p` decimal places. * `ifrand(i, p)`: Generates an integer with bound `i` and adds it to `frand(p)`. * `srand(x)`: Randomizes the sign of `x`. In other words, it flips the sign of `x` with probability `0.5`. * `brand()`: Returns a random boolean value (either `0` or `1`). ## 2.6.1 This is a production release with a bug fix for FreeBSD. The bug was that when `bc` was built without long options, it would give a fatal error on every run. This was caused by a mishandling of `optind`. ## 2.6.0 This release is a production release ***with no bugfixes***. If you do not want to upgrade, you don't have to. No source code changed; the only thing that changed was `lib2.bc`. This release adds one function to the [extended math library][16]: `p(x, y)`, which calculates `x` to the power of `y`, whether or not `y` is an integer. (The `^` operator can only accept integer powers.) This release also includes a couple of small tweaks to the [extended math library][16], mostly to fix returning numbers with too high of `scale`. ## 2.5.3 This release is a production release which addresses inconsistencies in the Portuguese locales. No `bc` code was changed. The issues were that the ISO files used different naming, and also that the files that should have been symlinks were not. I did not catch that because GitHub rendered them the exact same way. ## 2.5.2 This release is a production release. No code was changed, but the build system was changed to allow `CFLAGS` to be given to `CC`, like this: ``` CC="gcc -O3 -march=native" ./configure.sh ``` If this happens, the flags are automatically put into `CFLAGS`, and the compiler is set appropriately. In the example above this means that `CC` will be "gcc" and `CFLAGS` will be "-O3 -march=native". This behavior was added to conform to GNU autotools practices. ## 2.5.1 This is a production release which addresses portability concerns discovered in the `bc` build system. No `bc` code was changed. * Support for Solaris SPARC and AIX were added. * Minor documentations edits were performed. * An option for `configure.sh` was added to disable long options if `getopt_long()` is missing. ## 2.5.0 This is a production release with new translations. No code changed. The translations were contributed by [bugcrazy][15], and they are for Portuguese, both Portugal and Brazil locales. ## 2.4.0 This is a production release primarily aimed at improving `dc`. * A couple of copy and paste errors in the [`dc` manual][10] were fixed. * `dc` startup was optimized by making sure it didn't have to set up `bc`-only things. * The `bc` `&&` and `||` operators were made available to `dc` through the `M` and `m` commands, respectively. * `dc` macros were changed to be tail call-optimized. The last item, tail call optimization, means that if the last thing in a macro is a call to another macro, then the old macro is popped before executing the new macro. This change was made to stop `dc` from consuming more and more memory as macros are executed in a loop. The `q` and `Q` commands still respect the "hidden" macros by way of recording how many macros were removed by tail call optimization. ## 2.3.2 This is a production release meant to fix warnings in the Gentoo `ebuild` by making it possible to disable binary stripping. Other users do *not* need to upgrade. ## 2.3.1 This is a production release. It fixes a bug that caused `-1000000000 < -1` to return `0`. This only happened with negative numbers and only if the value on the left was more negative by a certain amount. That said, this bug *is* a bad bug, and needs to be fixed. **ALL USERS SHOULD UPDATE `bc`**. ## 2.3.0 This is a production release with changes to the build system. ## 2.2.0 This release is a production release. It only has new features and performance improvements. 1. The performance of `sqrt(x)` was improved. 2. The new function `root(x, n)` was added to the extended math library to calculate `n`th roots. 3. The new function `cbrt(x)` was added to the extended math library to calculate cube roots. ## 2.1.3 This is a non-critical release; it just changes the build system, and in non-breaking ways: 1. Linked locale files were changed to link to their sources with a relative link. 2. A bug in `configure.sh` that caused long option parsing to fail under `bash` was fixed. ## 2.1.2 This release is not a critical release. 1. A few codes were added to history. 2. Multiplication was optimized a bit more. 3. Addition and subtraction were both optimized a bit more. ## 2.1.1 This release contains a fix for the test suite made for Linux from Scratch: now the test suite prints `pass` when a test is passed. Other than that, there is no change in this release, so distros and other users do not need to upgrade. ## 2.1.0 This release is a production release. The following bugs were fixed: 1. A `dc` bug that caused stack mishandling was fixed. 2. A warning on OpenBSD was fixed. 3. Bugs in `ctrl+arrow` operations in history were fixed. 4. The ability to paste multiple lines in history was added. 5. A `bc` bug, mishandling of array arguments to functions, was fixed. 6. A crash caused by freeing the wrong pointer was fixed. 7. A `dc` bug where strings, in a rare case, were mishandled in parsing was fixed. In addition, the following changes were made: 1. Division was slightly optimized. 2. An option was added to the build to disable printing of prompts. 3. The special case of empty arguments is now handled. This is to prevent errors in scripts that end up passing empty arguments. 4. A harmless bug was fixed. This bug was that, with the pop instructions (mostly) removed (see below), `bc` would leave extra values on its stack for `void` functions and in a few other cases. These extra items would not affect anything put on the stack and would not cause any sort of crash or even buggy behavior, but they would cause `bc` to take more memory than it needed. On top of the above changes, the following optimizations were added: 1. The need for pop instructions in `bc` was removed. 2. Extra tests on every iteration of the interpreter loop were removed. 3. Updating function and code pointers on every iteration of the interpreter loop was changed to only updating them when necessary. 4. Extra assignments to pointers were removed. Altogether, these changes sped up the interpreter by around 2x. ***NOTE***: This is the last release with new features because this `bc` is now considered complete. From now on, only bug fixes and new translations will be added to this `bc`. ## 2.0.3 This is a production, bug-fix release. Two bugs were fixed in this release: 1. A rare and subtle signal handling bug was fixed. 2. A misbehavior on `0` to a negative power was fixed. The last bug bears some mentioning. When I originally wrote power, I did not thoroughly check its error cases; instead, I had it check if the first number was `0` and then if so, just return `0`. However, `0` to a negative power means that `1` will be divided by `0`, which is an error. I caught this, but only after I stopped being cocky. You see, sometime later, I had noticed that GNU `bc` returned an error, correctly, but I thought it was wrong simply because that's not what my `bc` did. I saw it again later and had a double take. I checked for real, finally, and found out that my `bc` was wrong all along. That was bad on me. But the bug was easy to fix, so it is fixed now. There are two other things in this release: 1. Subtraction was optimized by [Stefan Eßer][14]. 2. Division was also optimized, also by Stefan Eßer. ## 2.0.2 This release contains a fix for a possible overflow in the signal handling. I would be surprised if any users ran into it because it would only happen after 2 billion (`2^31-1`) `SIGINT`'s, but I saw it and had to fix it. ## 2.0.1 This release contains very few things that will apply to any users. 1. A slight bug in `dc`'s interactive mode was fixed. 2. A bug in the test suite that was only triggered on NetBSD was fixed. 3. **The `-P`/`--no-prompt` option** was added for users that do not want a prompt. 4. A `make check` target was added as an alias for `make test`. 5. `dc` got its own read prompt: `?> `. ## 2.0.0 This release is a production release. This release is also a little different from previous releases. From here on out, I do not plan on adding any more features to this `bc`; I believe that it is complete. However, there may be bug fix releases in the future, if I or any others manage to find bugs. This release has only a few new features: 1. `atan2(y, x)` was added to the extended math library as both `a2(y, x)` and `atan2(y, x)`. 2. Locales were fixed. 3. A **POSIX shell-compatible script was added as an alternative to compiling `gen/strgen.c`** on a host machine. More details about making the choice between the two can be found by running `./configure.sh --help` or reading the [build manual][13]. 4. Multiplication was optimized by using **diagonal multiplication**, rather than straight brute force. 5. The `locale_install.sh` script was fixed. 6. `dc` was given the ability to **use the environment variable `DC_ENV_ARGS`**. 7. `dc` was also given the ability to **use the `-i` or `--interactive`** options. 8. Printing the prompt was fixed so that it did not print when it shouldn't. 9. Signal handling was fixed. 10. **Handling of `SIGTERM` and `SIGQUIT`** was fixed. 11. The **built-in functions `maxibase()`, `maxobase()`, and `maxscale()`** (the commands `T`, `U`, `V` in `dc`, respectively) were added to allow scripts to query for the max allowable values of those globals. 12. Some incompatibilities with POSIX were fixed. In addition, this release is `2.0.0` for a big reason: the internal format for numbers changed. They used to be a `char` array. Now, they are an array of larger integers, packing more decimal digits into each integer. This has delivered ***HUGE*** performance improvements, especially for multiplication, division, and power. This `bc` should now be the fastest `bc` available, but I may be wrong. ## 1.2.8 This release contains a fix for a harmless bug (it is harmless in that it still works, but it just copies extra data) in the [`locale_install.sh`][12] script. ## 1.2.7 This version contains fixes for the build on Arch Linux. ## 1.2.6 This release removes the use of `local` in shell scripts because it's not POSIX shell-compatible, and also updates a man page that should have been updated a long time ago but was missed. ## 1.2.5 This release contains some missing locale `*.msg` files. ## 1.2.4 This release contains a few bug fixes and new French translations. ## 1.2.3 This release contains a fix for a bug: use of uninitialized data. Such data was only used when outputting an error message, but I am striving for perfection. As Michelangelo said, "Trifles make perfection, and perfection is no trifle." ## 1.2.2 This release contains fixes for OpenBSD. ## 1.2.1 This release contains bug fixes for some rare bugs. ## 1.2.0 This is a production release. There have been several changes since `1.1.0`: 1. The build system had some changes. 2. Locale support has been added. (Patches welcome for translations.) 3. **The ability to turn `ibase`, `obase`, and `scale` into stacks** was added with the `-g` command-line option. (See the [`bc` manual][9] for more details.) 4. Support for compiling on Mac OSX out of the box was added. 5. The extended math library got `t(x)`, `ceil(x)`, and some aliases. 6. The extended math library also got `r2d(x)` (for converting from radians to degrees) and `d2r(x)` (for converting from degrees to radians). This is to allow using degrees with the standard library. 7. Both calculators now accept numbers in **scientific notation**. See the [`bc` manual][9] and the [`dc` manual][10] for details. 8. Both calculators can **output in either scientific or engineering notation**. See the [`bc` manual][9] and the [`dc` manual][10] for details. 9. Some inefficiencies were removed. 10. Some bugs were fixed. 11. Some bugs in the extended library were fixed. 12. Some defects from [Coverity Scan][11] were fixed. ## 1.1.4 This release contains a fix to the build system that allows it to build on older versions of `glibc`. ## 1.1.3 This release contains a fix for a bug in the test suite where `bc` tests and `dc` tests could not be run in parallel. ## 1.1.2 This release has a fix for a history bug; the down arrow did not work. ## 1.1.1 This release fixes a bug in the `1.1.0` build system. The source is exactly the same. The bug that was fixed was a failure to install if no `EXECSUFFIX` was used. ## 1.1.0 This is a production release. However, many new features were added since `1.0`. 1. **The build system has been changed** to use a custom, POSIX shell-compatible configure script ([`configure.sh`][6]) to generate a POSIX make-compatible `Makefile`, which means that `bc` and `dc` now build out of the box on any POSIX-compatible system. 2. Out-of-memory and output errors now cause the `bc` to report the error, clean up, and die, rather than just reporting and trying to continue. 3. **Strings and constants are now garbage collected** when possible. 4. Signal handling and checking has been made more simple and more thorough. 5. `BcGlobals` was refactored into `BcVm` and `BcVm` was made global. Some procedure names were changed to reflect its difference to everything else. 6. Addition got a speed improvement. 7. Some common code for addition and multiplication was refactored into its own procedure. 8. A bug was removed where `dc` could have been selected, but the internal `#define` that returned `true` for a query about `dc` would not have returned `true`. 9. Useless calls to `bc_num_zero()` were removed. 10. **History support was added.** The history support is based off of a [UTF-8 aware fork][7] of [`linenoise`][8], which has been customized with `bc`'s own data structures and signal handling. 11. Generating C source from the math library now removes tabs from the library, shrinking the size of the executable. 12. The math library was shrunk. 13. Error handling and reporting was improved. 14. Reallocations were reduced by giving access to the request size for each operation. 15. **`abs()` (`b` command for `dc`) was added as a builtin.** 16. Both calculators were tested on FreeBSD. 17. Many obscure parse bugs were fixed. 18. Markdown and man page manuals were added, and the man pages are installed by `make install`. 19. Executable size was reduced, though the added features probably made the executable end up bigger. 20. **GNU-style array references were added as a supported feature.** 21. Allocations were reduced. 22. **New operators were added**: `$` (`$` for `dc`), `@` (`@` for `dc`), `@=`, `<<` (`H` for `dc`), `<<=`, `>>` (`h` for `dc`), and `>>=`. See the [`bc` manual][9] and the [`dc` manual][10] for more details. 23. **An extended math library was added.** This library contains code that makes it so I can replace my desktop calculator with this `bc`. See the [`bc` manual][3] for more details. 24. Support for all capital letters as numbers was added. 25. **Support for GNU-style void functions was added.** 26. A bug fix for improper handling of function parameters was added. 27. Precedence for the or (`||`) operator was changed to match GNU `bc`. 28. `dc` was given an explicit negation command. 29. `dc` was changed to be able to handle strings in arrays. ## 1.1 Release Candidate 3 This release is the eighth release candidate for 1.1, though it is the third release candidate meant as a general release candidate. The new code has not been tested as thoroughly as it should for release. ## 1.1 Release Candidate 2 This release is the seventh release candidate for 1.1, though it is the second release candidate meant as a general release candidate. The new code has not been tested as thoroughly as it should for release. ## 1.1 FreeBSD Beta 5 This release is the sixth release candidate for 1.1, though it is the fifth release candidate meant specifically to test if `bc` works on FreeBSD. The new code has not been tested as thoroughly as it should for release. ## 1.1 FreeBSD Beta 4 This release is the fifth release candidate for 1.1, though it is the fourth release candidate meant specifically to test if `bc` works on FreeBSD. The new code has not been tested as thoroughly as it should for release. ## 1.1 FreeBSD Beta 3 This release is the fourth release candidate for 1.1, though it is the third release candidate meant specifically to test if `bc` works on FreeBSD. The new code has not been tested as thoroughly as it should for release. ## 1.1 FreeBSD Beta 2 This release is the third release candidate for 1.1, though it is the second release candidate meant specifically to test if `bc` works on FreeBSD. The new code has not been tested as thoroughly as it should for release. ## 1.1 FreeBSD Beta 1 This release is the second release candidate for 1.1, though it is meant specifically to test if `bc` works on FreeBSD. The new code has not been tested as thoroughly as it should for release. ## 1.1 Release Candidate 1 This is the first release candidate for 1.1. The new code has not been tested as thoroughly as it should for release. ## 1.0 This is the first non-beta release. `bc` is ready for production use. As such, a lot has changed since 0.5. 1. `dc` has been added. It has been tested even more thoroughly than `bc` was for `0.5`. It does not have the `!` command, and for security reasons, it never will, so it is complete. 2. `bc` has been more thoroughly tested. An entire section of the test suite (for both programs) has been added to test for errors. 3. A prompt (`>>> `) has been added for interactive mode, making it easier to see inputs and outputs. 4. Interrupt handling has been improved, including elimination of race conditions (as much as possible). 5. MinGW and [Windows Subsystem for Linux][1] support has been added (see [xstatic][2] for binaries). 6. Memory leaks and errors have been eliminated (as far as ASan and Valgrind can tell). 7. Crashes have been eliminated (as far as [afl][3] can tell). 8. Karatsuba multiplication was added (and thoroughly) tested, speeding up multiplication and power by orders of magnitude. 9. Performance was further enhanced by using a "divmod" function to reduce redundant divisions and by removing superfluous `memset()` calls. 10. To switch between Karatsuba and `O(n^2)` multiplication, the config variable `BC_NUM_KARATSUBA_LEN` was added. It is set to a sane default, but the optimal number can be found with [`karatsuba.py`][4] (requires Python 3) and then configured through `make`. 11. The random math test generator script was changed to Python 3 and improved. `bc` and `dc` have together been run through 30+ million random tests. 12. All known math bugs have been fixed, including out of control memory allocations in `sine` and `cosine` (that was actually a parse bug), certain cases of infinite loop on square root, and slight inaccuracies (as much as possible; see the [README][5]) in transcendental functions. 13. Parsing has been fixed as much as possible. 14. Test coverage was improved to 94.8%. The only paths not covered are ones that happen when `malloc()` or `realloc()` fails. 15. An extension to get the length of an array was added. 16. The boolean not (`!`) had its precedence change to match negation. 17. Data input was hardened. 18. `bc` was made fully compliant with POSIX when the `-s` flag is used or `POSIXLY_CORRECT` is defined. 19. Error handling was improved. 20. `bc` now checks that files it is given are not directories. ## 1.0 Release Candidate 7 This is the seventh release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 6. ## 1.0 Release Candidate 6 This is the sixth release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 5. ## 1.0 Release Candidate 5 This is the fifth release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 4. ## 1.0 Release Candidate 4 This is the fourth release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 3. ## 1.0 Release Candidate 3 This is the third release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 2. ## 1.0 Release Candidate 2 This is the second release candidate for 1.0. It fixes a few bugs in 1.0 Release Candidate 1. ## 1.0 Release Candidate 1 This is the first Release Candidate for 1.0. `bc` is complete, with `dc`, but it is not tested. ## 0.5 This beta release completes more features, but it is still not complete nor tested as thoroughly as necessary. ## 0.4.1 This beta release fixes a few bugs in 0.4. ## 0.4 This is a beta release. It does not have the complete set of features, and it is not thoroughly tested. [1]: https://docs.microsoft.com/en-us/windows/wsl/install-win10 [2]: https://pkg.musl.cc/bc/ [3]: http://lcamtuf.coredump.cx/afl/ [4]: ./scripts/karatsuba.py [5]: ./README.md [6]: ./configure.sh [7]: https://github.com/rain-1/linenoise-mob [8]: https://github.com/antirez/linenoise [9]: ./manuals/bc/A.1.md [10]: ./manuals/dc/A.1.md [11]: https://scan.coverity.com/projects/gavinhoward-bc [12]: ./scripts/locale_install.sh [13]: ./manuals/build.md [14]: https://github.com/stesser [15]: https://github.com/bugcrazy [16]: ./manuals/bc/A.1.md#extended-library [17]: https://github.com/skeeto/optparse [18]: https://www.deepl.com/translator [19]: ./manuals/benchmarks.md [20]: https://github.com/apjanke/ronn-ng [21]: https://pandoc.org/ [22]: ./scripts/locale_uninstall.sh diff --git a/contrib/bc/gen/lib2.bc b/contrib/bc/gen/lib2.bc index 2811430d534e..ba3f76b1803a 100644 --- a/contrib/bc/gen/lib2.bc +++ b/contrib/bc/gen/lib2.bc @@ -1,561 +1,577 @@ /* * ***************************************************************************** * * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2018-2023 Gavin D. Howard and contributors. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * ***************************************************************************** * * The second bc math library. * */ define p(x,y){ auto a a=y$ if(y==a)return(x^a)@scale return e(y*l(x)) } define r(x,p){ auto t,n if(x==0)return x p=abs(p)$ n=(x<0) x=abs(x) t=x@p if(p=5>>p+1)t+=1>>p if(n)t=-t return t } define ceil(x,p){ auto t,n if(x==0)return x p=abs(p)$ n=(x<0) x=abs(x) t=(x+((x@p>p))@p if(n)t=-t return t } define f(n){ auto r n=abs(n)$ for(r=1;n>1;--n)r*=n return r } define perm(n,k){ auto f,g,s if(k>n)return 0 n=abs(n)$ k=abs(k)$ f=f(n) g=f(n-k) s=scale scale=0 f/=g scale=s return f } define comb(n,r){ auto s,f,g,h if(r>n)return 0 n=abs(n)$ r=abs(r)$ s=scale scale=0 f=f(n) h=f(r) g=f(n-r) f/=h*g scale=s return f } +define fib(n){ + auto i,t,p,r + if(!n)return 0 + n=abs(n)$ + t=1 + for (i=1;iscale)scale=scale(x) scale*=2 p=l(x)/l(b) scale=s return p@s } define l2(x){return log(x,2)} define l10(x){return log(x,A)} define root(x,n){ - auto s,m,r,q,p + auto s,t,m,r,q,p if(n<0)sqrt(n) n=n$ if(n==0)x/n if(x==0||n==1)return x if(n==2)return sqrt(x) s=scale scale=0 - if(x<0&&n%2==0)sqrt(x) - scale=s+2 + if(x<0&&n%2==0){ + scale=s + sqrt(x) + } + scale=s+scale(x)+5 + t=s+5 m=(x<0) x=abs(x) p=n-1 q=A^ceil((length(x$)/n)$,0) - while(r!=q){ + while(r@t!=q@t){ r=q q=(p*r+x/r^p)/n } if(m)r=-r scale=s return r@s } define cbrt(x){return root(x,3)} define gcd(a,b){ auto g,s if(!b)return a s=scale scale=0 a=abs(a)$ b=abs(b)$ if(a>p } define ifrand(i,p){return irand(abs(i)$)+frand(p)} define srand(x){ if(irand(2))return -x return x } define brand(){return irand(2)} define void output(x,b){ auto c c=obase obase=b x obase=c } define void hex(x){output(x,G)} define void binary(x){output(x,2)} define ubytes(x){ auto p,i x=abs(x)$ i=2^8 for(p=1;i-1p||(!z&&x==p))n*=2 return n } define s2un(x,n){ auto t,u,s x=x$ if(x<0){ x=abs(x) s=scale scale=0 t=n*8 u=2^(t-1) if(x==u)return x else if(x>u)x%=u scale=s return 2^(t)-x } return x } define s2u(x){return s2un(x,sbytes(x))} define void plz(x){ if(leading_zero())print x else{ if(x>-1&&x<1&&x!=0){ if(x<0)print"-" print 0,abs(x) } else print x } } define void plznl(x){ plz(x) print"\n" } define void pnlz(x){ auto s,i if(leading_zero()){ if(x>-1&&x<1&&x!=0){ s=scale(x) if(x<0)print"-" print"." x=abs(x) for(i=0;i1)p=log(b,obase)+1 else p=b for(i=y-p;i>0;--i)print 0 if(b)print b scale=s } define void output_uint(x,n){ auto i for(i=n-1;i>=0;--i){ output_byte(x,i) if(i)print" " else print"\n" } } define void hex_uint(x,n){ auto o o=obase obase=G output_uint(x,n) obase=o } define void binary_uint(x,n){ auto o o=obase obase=2 output_uint(x,n) obase=o } define void uintn(x,n){ if(scale(x)){ print"Error: ",x," is not an integer.\n" return } if(x<0){ print"Error: ",x," is negative.\n" return } if(x>=2^(n*8)){ print"Error: ",x," cannot fit into ",n," unsigned byte(s).\n" return } binary_uint(x,n) hex_uint(x,n) } define void intn(x,n){ auto t if(scale(x)){ print"Error: ",x," is not an integer.\n" return } t=2^(n*8-1) if(abs(x)>=t&&(x>0||x!=-t)){ print "Error: ",x," cannot fit into ",n," signed byte(s).\n" return } x=s2un(x,n) binary_uint(x,n) hex_uint(x,n) } define void uint8(x){uintn(x,1)} define void int8(x){intn(x,1)} define void uint16(x){uintn(x,2)} define void int16(x){intn(x,2)} define void uint32(x){uintn(x,4)} define void int32(x){intn(x,4)} define void uint64(x){uintn(x,8)} define void int64(x){intn(x,8)} define void uint(x){uintn(x,ubytes(x))} define void int(x){intn(x,sbytes(x))} define bunrev(t){ auto a,s,m[] s=scale scale=0 t=abs(t)$ while(t!=1){ t=divmod(t,2,m[]) a*=2 a+=m[0] } scale=s return a } define band(a,b){ auto s,t,m[],n[] a=abs(a)$ b=abs(b)$ if(b>a){ t=b b=a a=t } s=scale scale=0 t=1 while(b){ a=divmod(a,2,m[]) b=divmod(b,2,n[]) t*=2 t+=(m[0]&&n[0]) } scale=s return bunrev(t) } define bor(a,b){ auto s,t,m[],n[] a=abs(a)$ b=abs(b)$ if(b>a){ t=b b=a a=t } s=scale scale=0 t=1 while(b){ a=divmod(a,2,m[]) b=divmod(b,2,n[]) t*=2 t+=(m[0]||n[0]) } while(a){ a=divmod(a,2,m[]) t*=2 t+=m[0] } scale=s return bunrev(t) } define bxor(a,b){ auto s,t,m[],n[] a=abs(a)$ b=abs(b)$ if(b>a){ t=b b=a a=t } s=scale scale=0 t=1 while(b){ a=divmod(a,2,m[]) b=divmod(b,2,n[]) t*=2 t+=(m[0]+n[0]==1) } while(a){ a=divmod(a,2,m[]) t*=2 t+=m[0] } scale=s return bunrev(t) } define bshl(a,b){return abs(a)$*2^abs(b)$} define bshr(a,b){return(abs(a)$/2^abs(b)$)$} define bnotn(x,n){ auto s,t,m[] s=scale scale=0 t=2^(abs(n)$*8) x=abs(x)$%t+t t=1 while(x!=1){ x=divmod(x,2,m[]) t*=2 t+=!m[0] } scale=s return bunrev(t) } define bnot8(x){return bnotn(x,1)} define bnot16(x){return bnotn(x,2)} define bnot32(x){return bnotn(x,4)} define bnot64(x){return bnotn(x,8)} define bnot(x){return bnotn(x,ubytes(x))} define brevn(x,n){ auto s,t,m[] s=scale scale=0 t=2^(abs(n)$*8) x=abs(x)$%t+t scale=s return bunrev(x) } define brev8(x){return brevn(x,1)} define brev16(x){return brevn(x,2)} define brev32(x){return brevn(x,4)} define brev64(x){return brevn(x,8)} define brev(x){return brevn(x,ubytes(x))} define broln(x,p,n){ auto s,t,m[] s=scale scale=0 n=abs(n)$*8 p=abs(p)$%n t=2^n x=abs(x)$%t if(!p)return x x=divmod(x,2^(n-p),m[]) x+=m[0]*2^p%t scale=s return x } define brol8(x,p){return broln(x,p,1)} define brol16(x,p){return broln(x,p,2)} define brol32(x,p){return broln(x,p,4)} define brol64(x,p){return broln(x,p,8)} define brol(x,p){return broln(x,p,ubytes(x))} define brorn(x,p,n){ auto s,t,m[] s=scale scale=0 n=abs(n)$*8 p=abs(p)$%n t=2^n x=abs(x)$%t if(!p)return x x=divmod(x,2^p,m[]) x+=m[0]*2^(n-p)%t scale=s return x } define bror8(x,p){return brorn(x,p,1)} define bror16(x,p){return brorn(x,p,2)} define bror32(x,p){return brorn(x,p,4)} define bror64(x,p){return brorn(x,p,8)} define brol(x,p){return brorn(x,p,ubytes(x))} define bmodn(x,n){ auto s s=scale scale=0 x=abs(x)$%2^(abs(n)$*8) scale=s return x } define bmod8(x){return bmodn(x,1)} define bmod16(x){return bmodn(x,2)} define bmod32(x){return bmodn(x,4)} define bmod64(x){return bmodn(x,8)} diff --git a/contrib/bc/include/version.h b/contrib/bc/include/version.h index 3745ed9b5f74..daa1977c3cb6 100644 --- a/contrib/bc/include/version.h +++ b/contrib/bc/include/version.h @@ -1,42 +1,42 @@ /* * ***************************************************************************** * * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2018-2023 Gavin D. Howard and contributors. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * ***************************************************************************** * * The version of bc. * */ #ifndef BC_VERSION_H #define BC_VERSION_H /// The current version. -#define VERSION 6.4.0 +#define VERSION 6.5.0 #endif // BC_VERSION_H diff --git a/contrib/bc/src/vm.c b/contrib/bc/src/vm.c index 29c2715d0271..41da0fd9260d 100644 --- a/contrib/bc/src/vm.c +++ b/contrib/bc/src/vm.c @@ -1,1799 +1,1803 @@ /* * ***************************************************************************** * * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2018-2023 Gavin D. Howard and contributors. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * ***************************************************************************** * * Code common to all of bc and dc. * */ #include #include #include #include #include #include #include #ifndef _WIN32 #include #include #include #else // _WIN32 #define WIN32_LEAN_AND_MEAN #include #include #endif // _WIN32 #include #include #include #include #include #include #if BC_ENABLE_LIBRARY #include #endif // BC_ENABLE_LIBRARY #if !BC_ENABLE_LIBRARY // The actual globals. char output_bufs[BC_VM_BUF_SIZE]; BcVm vm_data; BcVm* vm = &vm_data; #endif // !BC_ENABLE_LIBRARY #if BC_DEBUG_CODE BC_NORETURN void bc_vm_jmp(const char* f) { #else // BC_DEBUG_CODE BC_NORETURN void bc_vm_jmp(void) { #endif #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY assert(BC_SIG_EXC(vm)); BC_SIG_MAYLOCK; #if BC_DEBUG_CODE bc_file_puts(&vm->ferr, bc_flush_none, "Longjmp: "); bc_file_puts(&vm->ferr, bc_flush_none, f); bc_file_putchar(&vm->ferr, bc_flush_none, '\n'); bc_file_flush(&vm->ferr, bc_flush_none); #endif // BC_DEBUG_CODE #if BC_DEBUG assert(vm->jmp_bufs.len - (size_t) vm->sig_pop); #endif // BC_DEBUG if (vm->jmp_bufs.len == 0) abort(); if (vm->sig_pop) bc_vec_pop(&vm->jmp_bufs); else vm->sig_pop = 1; siglongjmp(*((sigjmp_buf*) bc_vec_top(&vm->jmp_bufs)), 1); } #if !BC_ENABLE_LIBRARY /** * Handles signals. This is the signal handler. * @param sig The signal to handle. */ static void bc_vm_sig(int sig) { #if BC_ENABLE_EDITLINE // Editline needs this to resize the terminal. This also needs to come first // because a resize always needs to happen. if (sig == SIGWINCH) { if (BC_TTY) { el_resize(vm->history.el); // If the signal was a SIGWINCH, clear it because we don't need to // print a stack trace in that case. if (vm->sig == SIGWINCH) { vm->sig = 0; } } return; } #endif // BC_ENABLE_EDITLINE // There is already a signal in flight if this is true. if (vm->status == (sig_atomic_t) BC_STATUS_QUIT || vm->sig != 0) { if (!BC_I || sig != SIGINT) vm->status = BC_STATUS_QUIT; return; } // We always want to set this because a stack trace can be printed if we do. vm->sig = sig; // Only reset under these conditions; otherwise, quit. if (sig == SIGINT && BC_SIGINT && BC_I) { int err = errno; #if BC_ENABLE_EDITLINE // Editline needs this, for some unknown reason. if (write(STDOUT_FILENO, "^C", 2) != (ssize_t) 2) { vm->status = BC_STATUS_ERROR_FATAL; } #endif // BC_ENABLE_EDITLINE // Write the message. if (write(STDOUT_FILENO, vm->sigmsg, vm->siglen) != (ssize_t) vm->siglen) { vm->status = BC_STATUS_ERROR_FATAL; } errno = err; } else { #if BC_ENABLE_EDITLINE if (write(STDOUT_FILENO, "^C", 2) != (ssize_t) 2) { vm->status = BC_STATUS_ERROR_FATAL; return; } #endif // BC_ENABLE_EDITLINE vm->status = BC_STATUS_QUIT; } #if BC_ENABLE_LINE_LIB // Readline and Editline need this to actually handle sigints correctly. if (sig == SIGINT && bc_history_inlinelib) { bc_history_inlinelib = 0; siglongjmp(bc_history_jmpbuf, 1); } #endif // BC_ENABLE_LINE_LIB assert(vm->jmp_bufs.len); // Only jump if signals are not locked. The jump will happen by whoever // unlocks signals. if (!vm->sig_lock) BC_JMP; } /** * Sets up signal handling. */ static void bc_vm_sigaction(void) { #ifndef _WIN32 struct sigaction sa; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; // This mess is to silence a warning on Clang with regards to glibc's // sigaction handler, which activates the warning here. #if BC_CLANG #pragma clang diagnostic ignored "-Wdisabled-macro-expansion" #endif // BC_CLANG sa.sa_handler = bc_vm_sig; #if BC_CLANG #pragma clang diagnostic warning "-Wdisabled-macro-expansion" #endif // BC_CLANG sigaction(SIGTERM, &sa, NULL); sigaction(SIGQUIT, &sa, NULL); sigaction(SIGINT, &sa, NULL); #if BC_ENABLE_EDITLINE // Editline needs this to resize the terminal. if (BC_TTY) sigaction(SIGWINCH, &sa, NULL); #endif // BC_ENABLE_EDITLINE #if BC_ENABLE_HISTORY if (BC_TTY) sigaction(SIGHUP, &sa, NULL); #endif // BC_ENABLE_HISTORY #else // _WIN32 signal(SIGTERM, bc_vm_sig); signal(SIGINT, bc_vm_sig); #endif // _WIN32 } void bc_vm_info(const char* const help) { BC_SIG_ASSERT_LOCKED; // Print the banner. bc_file_printf(&vm->fout, "%s %s\n%s", vm->name, BC_VERSION, bc_copyright); // Print the help. if (help != NULL) { bc_file_putchar(&vm->fout, bc_flush_none, '\n'); #if BC_ENABLED if (BC_IS_BC) { const char* const banner = BC_DEFAULT_BANNER ? "to" : "to not"; const char* const sigint = BC_DEFAULT_SIGINT_RESET ? "to reset" : "to exit"; const char* const tty = BC_DEFAULT_TTY_MODE ? "enabled" : "disabled"; const char* const prompt = BC_DEFAULT_PROMPT ? "enabled" : "disabled"; const char* const expr = BC_DEFAULT_EXPR_EXIT ? "to exit" : "to not exit"; const char* const clamp = BC_DEFAULT_DIGIT_CLAMP ? "to clamp" : "to not clamp"; bc_file_printf(&vm->fout, help, vm->name, vm->name, BC_VERSION, BC_BUILD_TYPE, banner, sigint, tty, prompt, expr, clamp); } #endif // BC_ENABLED #if DC_ENABLED if (BC_IS_DC) { const char* const sigint = DC_DEFAULT_SIGINT_RESET ? "to reset" : "to exit"; const char* const tty = DC_DEFAULT_TTY_MODE ? "enabled" : "disabled"; const char* const prompt = DC_DEFAULT_PROMPT ? "enabled" : "disabled"; const char* const expr = DC_DEFAULT_EXPR_EXIT ? "to exit" : "to not exit"; const char* const clamp = DC_DEFAULT_DIGIT_CLAMP ? "to clamp" : "to not clamp"; bc_file_printf(&vm->fout, help, vm->name, vm->name, BC_VERSION, BC_BUILD_TYPE, sigint, tty, prompt, expr, clamp); } #endif // DC_ENABLED } // Flush. bc_file_flush(&vm->fout, bc_flush_none); } #endif // !BC_ENABLE_LIBRARY #if !BC_ENABLE_LIBRARY && !BC_ENABLE_MEMCHECK BC_NORETURN #endif // !BC_ENABLE_LIBRARY && !BC_ENABLE_MEMCHECK void bc_vm_fatalError(BcErr e) { bc_err(e); #if !BC_ENABLE_LIBRARY && !BC_ENABLE_MEMCHECK BC_UNREACHABLE #if !BC_CLANG abort(); #endif // !BC_CLANG #endif // !BC_ENABLE_LIBRARY && !BC_ENABLE_MEMCHECK } #if BC_ENABLE_LIBRARY BC_NORETURN void bc_vm_handleError(BcErr e) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY assert(e < BC_ERR_NELEMS); assert(!vm->sig_pop); BC_SIG_LOCK; // If we have a normal error... if (e <= BC_ERR_MATH_DIVIDE_BY_ZERO) { // Set the error. vm->err = (BclError) (e - BC_ERR_MATH_NEGATIVE + BCL_ERROR_MATH_NEGATIVE); } // Abort if we should. else if (vm->abrt) abort(); else if (e == BC_ERR_FATAL_ALLOC_ERR) vm->err = BCL_ERROR_FATAL_ALLOC_ERR; else vm->err = BCL_ERROR_FATAL_UNKNOWN_ERR; BC_JMP; } #else // BC_ENABLE_LIBRARY #if BC_DEBUG void bc_vm_handleError(BcErr e, const char* file, int fline, size_t line, ...) #else // BC_DEBUG void bc_vm_handleError(BcErr e, size_t line, ...) #endif // BC_DEBUG { BcStatus s; va_list args; uchar id = bc_err_ids[e]; const char* err_type = vm->err_ids[id]; sig_atomic_t lock; assert(e < BC_ERR_NELEMS); assert(!vm->sig_pop); #if BC_ENABLED // Figure out if the POSIX error should be an error, a warning, or nothing. if (!BC_S && e >= BC_ERR_POSIX_START) { if (BC_W) { // Make sure to not return an error. id = UCHAR_MAX; err_type = vm->err_ids[BC_ERR_IDX_WARN]; } else return; } #endif // BC_ENABLED BC_SIG_TRYLOCK(lock); // Make sure all of stdout is written first. s = bc_file_flushErr(&vm->fout, bc_flush_err); // Just jump out if the flush failed; there's nothing we can do. if (BC_ERR(s == BC_STATUS_ERROR_FATAL)) { vm->status = (sig_atomic_t) s; BC_JMP; } // Print the error message. va_start(args, line); bc_file_putchar(&vm->ferr, bc_flush_none, '\n'); bc_file_puts(&vm->ferr, bc_flush_none, err_type); bc_file_putchar(&vm->ferr, bc_flush_none, ' '); bc_file_vprintf(&vm->ferr, vm->err_msgs[e], args); va_end(args); // Print the extra information if we have it. if (BC_NO_ERR(vm->file != NULL)) { // This is the condition for parsing vs runtime. // If line is not 0, it is parsing. if (line) { bc_file_puts(&vm->ferr, bc_flush_none, "\n "); bc_file_puts(&vm->ferr, bc_flush_none, vm->file); bc_file_printf(&vm->ferr, ":%zu\n", line); } else { // Print a stack trace. bc_file_putchar(&vm->ferr, bc_flush_none, '\n'); bc_program_printStackTrace(&vm->prog); } } else { bc_file_putchar(&vm->ferr, bc_flush_none, '\n'); } #if BC_DEBUG bc_file_printf(&vm->ferr, "\n %s:%d\n", file, fline); #endif // BC_DEBUG bc_file_puts(&vm->ferr, bc_flush_none, "\n"); s = bc_file_flushErr(&vm->ferr, bc_flush_err); #if !BC_ENABLE_MEMCHECK // Because this function is called by a BC_NORETURN function when fatal // errors happen, we need to make sure to exit on fatal errors. This will // be faster anyway. This function *cannot jump when a fatal error occurs!* if (BC_ERR(id == BC_ERR_IDX_FATAL || s == BC_STATUS_ERROR_FATAL)) { exit(bc_vm_atexit((int) BC_STATUS_ERROR_FATAL)); } #else // !BC_ENABLE_MEMCHECK if (BC_ERR(s == BC_STATUS_ERROR_FATAL)) vm->status = (sig_atomic_t) s; else #endif // !BC_ENABLE_MEMCHECK { vm->status = (sig_atomic_t) (uchar) (id + 1); } // Only jump if there is an error. if (BC_ERR(vm->status)) BC_JMP; BC_SIG_TRYUNLOCK(lock); } char* bc_vm_getenv(const char* var) { char* ret; #ifndef _WIN32 ret = getenv(var); #else // _WIN32 _dupenv_s(&ret, NULL, var); #endif // _WIN32 return ret; } void bc_vm_getenvFree(char* val) { BC_UNUSED(val); #ifdef _WIN32 free(val); #endif // _WIN32 } /** * Sets a flag from an environment variable and the default. * @param var The environment variable. * @param def The default. * @param flag The flag to set. */ static void bc_vm_setenvFlag(const char* const var, int def, uint16_t flag) { // Get the value. char* val = bc_vm_getenv(var); // If there is no value... if (val == NULL) { // Set the default. if (def) vm->flags |= flag; else vm->flags &= ~(flag); } // Parse the value. else if (strtoul(val, NULL, 0)) vm->flags |= flag; else vm->flags &= ~(flag); bc_vm_getenvFree(val); } /** * Parses the arguments in {B,D]C_ENV_ARGS. * @param env_args_name The environment variable to use. * @param scale A pointer to return the scale that the arguments set, * if any. * @param ibase A pointer to return the ibase that the arguments set, * if any. * @param obase A pointer to return the obase that the arguments set, * if any. */ static void bc_vm_envArgs(const char* const env_args_name, BcBigDig* scale, BcBigDig* ibase, BcBigDig* obase) { char *env_args = bc_vm_getenv(env_args_name), *buf, *start; char instr = '\0'; BC_SIG_ASSERT_LOCKED; if (env_args == NULL) return; // Windows already allocates, so we don't need to. #ifndef _WIN32 start = buf = vm->env_args_buffer = bc_vm_strdup(env_args); #else // _WIN32 start = buf = vm->env_args_buffer = env_args; #endif // _WIN32 assert(buf != NULL); // Create two buffers for parsing. These need to stay throughout the entire // execution of bc, unfortunately, because of filenames that might be in // there. bc_vec_init(&vm->env_args, sizeof(char*), BC_DTOR_NONE); bc_vec_push(&vm->env_args, &env_args_name); // While we haven't reached the end of the args... while (*buf) { // If we don't have whitespace... if (!isspace(*buf)) { // If we have the start of a string... if (*buf == '"' || *buf == '\'') { // Set stuff appropriately. instr = *buf; buf += 1; // Check for the empty string. if (*buf == instr) { instr = '\0'; buf += 1; continue; } } // Push the pointer to the args buffer. bc_vec_push(&vm->env_args, &buf); // Parse the string. while (*buf && ((!instr && !isspace(*buf)) || (instr && *buf != instr))) { buf += 1; } // If we did find the end of the string... if (*buf) { if (instr) instr = '\0'; // Reset stuff. *buf = '\0'; buf += 1; start = buf; } else if (instr) bc_error(BC_ERR_FATAL_OPTION, 0, start); } // If we have whitespace, eat it. else buf += 1; } // Make sure to push a NULL pointer at the end. buf = NULL; bc_vec_push(&vm->env_args, &buf); // Parse the arguments. bc_args((int) vm->env_args.len - 1, bc_vec_item(&vm->env_args, 0), false, scale, ibase, obase); } /** * Gets the {B,D}C_LINE_LENGTH. * @param var The environment variable to pull it from. * @return The line length. */ static size_t bc_vm_envLen(const char* var) { char* lenv = bc_vm_getenv(var); size_t i, len = BC_NUM_PRINT_WIDTH; int num; // Return the default with none. if (lenv == NULL) return len; len = strlen(lenv); // Figure out if it's a number. for (num = 1, i = 0; num && i < len; ++i) { num = isdigit(lenv[i]); } // If it is a number... if (num) { // Parse it and clamp it if needed. - len = (size_t) atoi(lenv) - 1; - if (len == 1 || len >= UINT16_MAX) len = BC_NUM_PRINT_WIDTH; + len = (size_t) strtol(lenv, NULL, 10); + if (len != 0) + { + len -= 1; + if (len < 2 || len >= UINT16_MAX) len = BC_NUM_PRINT_WIDTH; + } } // Set the default. else len = BC_NUM_PRINT_WIDTH; bc_vm_getenvFree(lenv); return len; } #endif // BC_ENABLE_LIBRARY void bc_vm_shutdown(void) { BC_SIG_ASSERT_LOCKED; #if BC_ENABLE_NLS if (vm->catalog != BC_VM_INVALID_CATALOG) catclose(vm->catalog); #endif // BC_ENABLE_NLS #if !BC_ENABLE_LIBRARY #if BC_ENABLE_HISTORY // This must always run to ensure that the terminal is back to normal, i.e., // has raw mode disabled. But we should only do it if we did not have a bad // terminal because history was not initialized if it is a bad terminal. if (BC_TTY && !vm->history.badTerm) bc_history_free(&vm->history); #endif // BC_ENABLE_HISTORY #endif // !BC_ENABLE_LIBRARY #if BC_DEBUG #if !BC_ENABLE_LIBRARY bc_vec_free(&vm->env_args); free(vm->env_args_buffer); bc_vec_free(&vm->files); bc_vec_free(&vm->exprs); if (BC_PARSE_IS_INITED(&vm->read_prs, &vm->prog)) { bc_vec_free(&vm->read_buf); bc_parse_free(&vm->read_prs); } bc_parse_free(&vm->prs); bc_program_free(&vm->prog); bc_slabvec_free(&vm->slabs); #endif // !BC_ENABLE_LIBRARY bc_vm_freeTemps(); #endif // BC_DEBUG #if !BC_ENABLE_LIBRARY // We always want to flush. bc_file_free(&vm->fout); bc_file_free(&vm->ferr); #endif // !BC_ENABLE_LIBRARY } void bc_vm_addTemp(BcDig* num) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY BC_SIG_ASSERT_LOCKED; // If we don't have room, just free. if (vm->temps_len == BC_VM_MAX_TEMPS) free(num); else { // Add to the buffer and length. vm->temps_buf[vm->temps_len] = num; vm->temps_len += 1; } } BcDig* bc_vm_takeTemp(void) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY BC_SIG_ASSERT_LOCKED; if (!vm->temps_len) return NULL; vm->temps_len -= 1; return vm->temps_buf[vm->temps_len]; } BcDig* bc_vm_getTemp(void) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY BC_SIG_ASSERT_LOCKED; if (!vm->temps_len) return NULL; return vm->temps_buf[vm->temps_len - 1]; } void bc_vm_freeTemps(void) { size_t i; #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY BC_SIG_ASSERT_LOCKED; if (!vm->temps_len) return; // Free them all... for (i = 0; i < vm->temps_len; ++i) { free(vm->temps_buf[i]); } vm->temps_len = 0; } #if !BC_ENABLE_LIBRARY size_t bc_vm_numDigits(size_t val) { size_t digits = 0; do { digits += 1; val /= 10; } while (val != 0); return digits; } #endif // !BC_ENABLE_LIBRARY inline size_t bc_vm_arraySize(size_t n, size_t size) { size_t res = n * size; if (BC_ERR(BC_VM_MUL_OVERFLOW(n, size, res))) { bc_vm_fatalError(BC_ERR_FATAL_ALLOC_ERR); } return res; } inline size_t bc_vm_growSize(size_t a, size_t b) { size_t res = a + b; if (BC_ERR(res >= SIZE_MAX || res < a)) { bc_vm_fatalError(BC_ERR_FATAL_ALLOC_ERR); } return res; } void* bc_vm_malloc(size_t n) { void* ptr; BC_SIG_ASSERT_LOCKED; ptr = malloc(n); if (BC_ERR(ptr == NULL)) { bc_vm_freeTemps(); ptr = malloc(n); if (BC_ERR(ptr == NULL)) bc_vm_fatalError(BC_ERR_FATAL_ALLOC_ERR); } return ptr; } void* bc_vm_realloc(void* ptr, size_t n) { void* temp; BC_SIG_ASSERT_LOCKED; temp = realloc(ptr, n); if (BC_ERR(temp == NULL)) { bc_vm_freeTemps(); temp = realloc(ptr, n); if (BC_ERR(temp == NULL)) bc_vm_fatalError(BC_ERR_FATAL_ALLOC_ERR); } return temp; } char* bc_vm_strdup(const char* str) { char* s; BC_SIG_ASSERT_LOCKED; s = strdup(str); if (BC_ERR(s == NULL)) { bc_vm_freeTemps(); s = strdup(str); if (BC_ERR(s == NULL)) bc_vm_fatalError(BC_ERR_FATAL_ALLOC_ERR); } return s; } #if !BC_ENABLE_LIBRARY void bc_vm_printf(const char* fmt, ...) { va_list args; #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #else // BC_ENABLE_LIBRARY sig_atomic_t lock; #endif // BC_ENABLE_LIBRARY BC_SIG_TRYLOCK(lock); va_start(args, fmt); bc_file_vprintf(&vm->fout, fmt, args); va_end(args); vm->nchars = 0; BC_SIG_TRYUNLOCK(lock); } #endif // !BC_ENABLE_LIBRARY void bc_vm_putchar(int c, BcFlushType type) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); bc_vec_pushByte(&vm->out, (uchar) c); #else // BC_ENABLE_LIBRARY bc_file_putchar(&vm->fout, type, (uchar) c); vm->nchars = (c == '\n' ? 0 : vm->nchars + 1); #endif // BC_ENABLE_LIBRARY } #if !BC_ENABLE_LIBRARY #ifdef __OpenBSD__ /** * Aborts with a message. This should never be called because I have carefully * made sure that the calls to pledge() and unveil() are correct, but it's here * just in case. * @param msg The message to print. */ BC_NORETURN static void bc_abortm(const char* msg) { bc_file_puts(&vm->ferr, bc_flush_none, msg); bc_file_puts(&vm->ferr, bc_flush_none, "; this is a bug"); bc_file_flush(&vm->ferr, bc_flush_none); abort(); } void bc_pledge(const char* promises, const char* execpromises) { int r = pledge(promises, execpromises); if (r) bc_abortm("pledge() failed"); } #if BC_ENABLE_EXTRA_MATH /** * A convenience and portability function for OpenBSD's unveil(). * @param path The path. * @param permissions The permissions for the path. */ static void bc_unveil(const char* path, const char* permissions) { int r = unveil(path, permissions); if (r) bc_abortm("unveil() failed"); } #endif // BC_ENABLE_EXTRA_MATH #else // __OpenBSD__ void bc_pledge(const char* promises, const char* execpromises) { BC_UNUSED(promises); BC_UNUSED(execpromises); } #if BC_ENABLE_EXTRA_MATH static void bc_unveil(const char* path, const char* permissions) { BC_UNUSED(path); BC_UNUSED(permissions); } #endif // BC_ENABLE_EXTRA_MATH #endif // __OpenBSD__ /** * Cleans unneeded variables, arrays, functions, strings, and constants when * done executing a line of stdin. This is to prevent memory usage growing * without bound. This is an idea from busybox. */ static void bc_vm_clean(void) { BcVec* fns = &vm->prog.fns; BcFunc* f = bc_vec_item(fns, BC_PROG_MAIN); BcInstPtr* ip = bc_vec_item(&vm->prog.stack, 0); bool good = ((vm->status && vm->status != BC_STATUS_QUIT) || vm->sig != 0); BC_SIG_ASSERT_LOCKED; // If all is good, go ahead and reset. if (good) bc_program_reset(&vm->prog); #if BC_ENABLED // bc has this extra condition. If it not satisfied, it is in the middle of // a parse. if (good && BC_IS_BC) good = !BC_PARSE_NO_EXEC(&vm->prs); #endif // BC_ENABLED #if DC_ENABLED // For dc, it is safe only when all of the results on the results stack are // safe, which means that they are temporaries or other things that don't // need strings or constants. if (BC_IS_DC) { size_t i; good = true; for (i = 0; good && i < vm->prog.results.len; ++i) { BcResult* r = (BcResult*) bc_vec_item(&vm->prog.results, i); good = BC_VM_SAFE_RESULT(r); } } #endif // DC_ENABLED // If this condition is true, we can get rid of strings, // constants, and code. if (good && vm->prog.stack.len == 1 && ip->idx == f->code.len) { // XXX: Nothing can be popped in dc. Deal with it. #if BC_ENABLED if (BC_IS_BC) { // XXX: you cannot delete strings, functions, or constants in bc. // Deal with it. bc_vec_popAll(&f->labels); } #endif // BC_ENABLED bc_vec_popAll(&f->code); ip->idx = 0; } } /** * Process a bunch of text. * @param text The text to process. * @param mode The mode to process in. */ static void bc_vm_process(const char* text, BcMode mode) { // Set up the parser. bc_parse_text(&vm->prs, text, mode); while (vm->prs.l.t != BC_LEX_EOF) { // Parsing requires a signal lock. We also don't parse everything; we // want to execute as soon as possible for *everything*. BC_SIG_LOCK; vm->parse(&vm->prs); BC_SIG_UNLOCK; // Execute if possible. if (BC_IS_DC || !BC_PARSE_NO_EXEC(&vm->prs)) bc_program_exec(&vm->prog); assert(BC_IS_DC || vm->prog.results.len == 0); // Flush in interactive mode. if (BC_I) bc_file_flush(&vm->fout, bc_flush_save); } } #if BC_ENABLED /** * Ends a series of if statements. This is to ensure that full parses happen * when a file finishes or stdin has no more data. Without this, bc thinks that * it cannot parse any further. But if we reach the end of a file or stdin has * no more data, we know we can add an empty else clause. */ static void bc_vm_endif(void) { bc_parse_endif(&vm->prs); bc_program_exec(&vm->prog); } #endif // BC_ENABLED /** * Processes a file. * @param file The filename. */ static void bc_vm_file(const char* file) { char* data = NULL; #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY assert(!vm->sig_pop); vm->mode = BC_MODE_FILE; // Set up the lexer. bc_lex_file(&vm->prs.l, file); BC_SIG_LOCK; // Read the file. data = bc_read_file(file); assert(data != NULL); BC_SETJMP_LOCKED(vm, err); BC_SIG_UNLOCK; // Process it. bc_vm_process(data, BC_MODE_FILE); #if BC_ENABLED // Make sure to end any open if statements. if (BC_IS_BC) bc_vm_endif(); #endif // BC_ENABLED err: BC_SIG_MAYLOCK; // Cleanup. free(data); bc_vm_clean(); // bc_program_reset(), called by bc_vm_clean(), resets the status. // We want it to clear the sig_pop variable in case it was set. if (vm->status == (sig_atomic_t) BC_STATUS_SUCCESS) BC_LONGJMP_STOP; BC_LONGJMP_CONT(vm); } bool bc_vm_readLine(bool clear) { BcStatus s; bool good; BC_SIG_ASSERT_NOT_LOCKED; // Clear the buffer if desired. if (clear) bc_vec_empty(&vm->buffer); // Empty the line buffer. bc_vec_empty(&vm->line_buf); if (vm->eof) return false; do { // bc_read_line() must always return either BC_STATUS_SUCCESS or // BC_STATUS_EOF. Everything else, it and whatever it calls, must jump // out instead. s = bc_read_line(&vm->line_buf, ">>> "); vm->eof = (s == BC_STATUS_EOF); } while (s == BC_STATUS_SUCCESS && !vm->eof && vm->line_buf.len < 1); good = (vm->line_buf.len > 1); // Concat if we found something. if (good) bc_vec_concat(&vm->buffer, vm->line_buf.v); return good; } /** * Processes text from stdin. */ static void bc_vm_stdin(void) { bool clear; #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY clear = true; vm->mode = BC_MODE_STDIN; // Set up the lexer. bc_lex_file(&vm->prs.l, bc_program_stdin_name); // These are global so that the lexers can access them, but they are // allocated and freed in this function because they should only be used for // stdin and expressions (they are used in bc_vm_exprs() as well). So they // are tied to this function, really. Well, this and bc_vm_readLine(). These // are the reasons that we have vm->is_stdin to tell the lexers if we are // reading from stdin. Well, both lexers care. And the reason they care is // so that if a comment or a string goes across multiple lines, the lexer // can request more data from stdin until the comment or string is ended. BC_SIG_LOCK; bc_vec_init(&vm->buffer, sizeof(uchar), BC_DTOR_NONE); bc_vec_init(&vm->line_buf, sizeof(uchar), BC_DTOR_NONE); BC_SETJMP_LOCKED(vm, err); BC_SIG_UNLOCK; // This label exists because errors can cause jumps to end up at the err label // below. If that happens, and the error should be cleared and execution // continue, then we need to jump back. restart: // While we still read data from stdin. while (bc_vm_readLine(clear)) { size_t len = vm->buffer.len - 1; const char* str = vm->buffer.v; // We don't want to clear the buffer when the line ends with a backslash // because a backslash newline is special in bc. clear = (len < 2 || str[len - 2] != '\\' || str[len - 1] != '\n'); if (!clear) continue; // Process the data. bc_vm_process(vm->buffer.v, BC_MODE_STDIN); if (vm->eof) break; else { BC_SIG_LOCK; bc_vm_clean(); BC_SIG_UNLOCK; } } #if BC_ENABLED // End the if statements. if (BC_IS_BC) bc_vm_endif(); #endif // BC_ENABLED err: BC_SIG_MAYLOCK; // Cleanup. bc_vm_clean(); #if !BC_ENABLE_MEMCHECK assert(vm->status != BC_STATUS_ERROR_FATAL); vm->status = vm->status == BC_STATUS_QUIT || !BC_I ? vm->status : BC_STATUS_SUCCESS; #else // !BC_ENABLE_MEMCHECK vm->status = vm->status == BC_STATUS_ERROR_FATAL || vm->status == BC_STATUS_QUIT || !BC_I ? vm->status : BC_STATUS_SUCCESS; #endif // !BC_ENABLE_MEMCHECK if (!vm->status && !vm->eof) { bc_vec_empty(&vm->buffer); BC_LONGJMP_STOP; BC_SIG_UNLOCK; goto restart; } #if BC_DEBUG // Since these are tied to this function, free them here. We only free in // debug mode because stdin is always the last thing read. bc_vec_free(&vm->line_buf); bc_vec_free(&vm->buffer); #endif // BC_DEBUG BC_LONGJMP_CONT(vm); } bool bc_vm_readBuf(bool clear) { size_t len = vm->exprs.len - 1; bool more; BC_SIG_ASSERT_NOT_LOCKED; // Clear the buffer if desired. if (clear) bc_vec_empty(&vm->buffer); // We want to pop the nul byte off because that's what bc_read_buf() // expects. bc_vec_pop(&vm->buffer); // Read one line of expressions. more = bc_read_buf(&vm->buffer, vm->exprs.v, &len); bc_vec_pushByte(&vm->buffer, '\0'); return more; } static void bc_vm_exprs(void) { bool clear; #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY clear = true; vm->mode = BC_MODE_EXPRS; // Prepare the lexer. bc_lex_file(&vm->prs.l, bc_program_exprs_name); // We initialize this so that the lexer can access it in the case that it // needs more data for expressions, such as for a multiline string or // comment. See the comment on the allocation of vm->buffer above in // bc_vm_stdin() for more information. BC_SIG_LOCK; bc_vec_init(&vm->buffer, sizeof(uchar), BC_DTOR_NONE); BC_SETJMP_LOCKED(vm, err); BC_SIG_UNLOCK; while (bc_vm_readBuf(clear)) { size_t len = vm->buffer.len - 1; const char* str = vm->buffer.v; // We don't want to clear the buffer when the line ends with a backslash // because a backslash newline is special in bc. clear = (len < 2 || str[len - 2] != '\\' || str[len - 1] != '\n'); if (!clear) continue; // Process the data. bc_vm_process(vm->buffer.v, BC_MODE_EXPRS); } // If we were not supposed to clear, then we should process everything. This // makes sure that errors get reported. if (!clear) bc_vm_process(vm->buffer.v, BC_MODE_EXPRS); err: BC_SIG_MAYLOCK; // Cleanup. bc_vm_clean(); // bc_program_reset(), called by bc_vm_clean(), resets the status. // We want it to clear the sig_pop variable in case it was set. if (vm->status == (sig_atomic_t) BC_STATUS_SUCCESS) BC_LONGJMP_STOP; // Since this is tied to this function, free it here. We always free it here // because bc_vm_stdin() may or may not use it later. bc_vec_free(&vm->buffer); BC_LONGJMP_CONT(vm); } #if BC_ENABLED /** * Loads a math library. * @param name The name of the library. * @param text The text of the source code. */ static void bc_vm_load(const char* name, const char* text) { bc_lex_file(&vm->prs.l, name); bc_parse_text(&vm->prs, text, BC_MODE_FILE); BC_SIG_LOCK; while (vm->prs.l.t != BC_LEX_EOF) { vm->parse(&vm->prs); } BC_SIG_UNLOCK; } #endif // BC_ENABLED /** * Loads the default error messages. */ static void bc_vm_defaultMsgs(void) { size_t i; // Load the error categories. for (i = 0; i < BC_ERR_IDX_NELEMS + BC_ENABLED; ++i) { vm->err_ids[i] = bc_errs[i]; } // Load the error messages. for (i = 0; i < BC_ERR_NELEMS; ++i) { vm->err_msgs[i] = bc_err_msgs[i]; } } /** * Loads the error messages for the locale. If NLS is disabled, this just loads * the default messages. */ static void bc_vm_gettext(void) { #if BC_ENABLE_NLS uchar id = 0; int set, msg = 1; size_t i; // If no locale, load the defaults. if (vm->locale == NULL) { vm->catalog = BC_VM_INVALID_CATALOG; bc_vm_defaultMsgs(); return; } vm->catalog = catopen(BC_MAINEXEC, NL_CAT_LOCALE); // If no catalog, load the defaults. if (vm->catalog == BC_VM_INVALID_CATALOG) { bc_vm_defaultMsgs(); return; } // Load the error categories. for (set = 1; msg <= BC_ERR_IDX_NELEMS + BC_ENABLED; ++msg) { vm->err_ids[msg - 1] = catgets(vm->catalog, set, msg, bc_errs[msg - 1]); } i = 0; id = bc_err_ids[i]; // Load the error messages. In order to understand this loop, you must know // the order of messages and categories in the enum and in the locale files. for (set = id + 2, msg = 1; i < BC_ERR_NELEMS; ++i, ++msg) { if (id != bc_err_ids[i]) { msg = 1; id = bc_err_ids[i]; set = id + 2; } vm->err_msgs[i] = catgets(vm->catalog, set, msg, bc_err_msgs[i]); } #else // BC_ENABLE_NLS bc_vm_defaultMsgs(); #endif // BC_ENABLE_NLS } /** * Starts execution. Really, this is a function of historical accident; it could * probably be combined with bc_vm_boot(), but I don't care enough. Really, this * function starts when execution of bc or dc source code starts. */ static void bc_vm_exec(void) { size_t i; #if DC_ENABLED bool has_file = false; #endif // DC_ENABLED #if BC_ENABLED // Load the math libraries. if (BC_IS_BC && (vm->flags & BC_FLAG_L)) { // Can't allow redefinitions in the builtin library. vm->no_redefine = true; bc_vm_load(bc_lib_name, bc_lib); #if BC_ENABLE_EXTRA_MATH if (!BC_IS_POSIX) bc_vm_load(bc_lib2_name, bc_lib2); #endif // BC_ENABLE_EXTRA_MATH // Make sure to clear this. vm->no_redefine = false; // Execute to ensure that all is hunky dory. Without this, scale can be // set improperly. bc_program_exec(&vm->prog); } #endif // BC_ENABLED // If there are expressions to execute... if (vm->exprs.len) { // Process the expressions. bc_vm_exprs(); // Sometimes, executing expressions means we need to quit. if (!vm->no_exprs && vm->exit_exprs && BC_EXPR_EXIT) return; } // Process files. for (i = 0; i < vm->files.len; ++i) { char* path = *((char**) bc_vec_item(&vm->files, i)); if (!strcmp(path, "")) continue; #if DC_ENABLED has_file = true; #endif // DC_ENABLED bc_vm_file(path); } #if BC_ENABLE_EXTRA_MATH // These are needed for the pseudo-random number generator. bc_unveil("/dev/urandom", "r"); bc_unveil("/dev/random", "r"); bc_unveil(NULL, NULL); #endif // BC_ENABLE_EXTRA_MATH #if BC_ENABLE_HISTORY // We need to keep tty if history is enabled, and we need to keep rpath for // the times when we read from /dev/urandom. if (BC_TTY && !vm->history.badTerm) bc_pledge(bc_pledge_end_history, NULL); else #endif // BC_ENABLE_HISTORY { bc_pledge(bc_pledge_end, NULL); } #if BC_ENABLE_AFL // This is the thing that makes fuzzing with AFL++ so fast. If you move this // back, you won't cause any problems, but fuzzing will slow down. If you // move this forward, you won't fuzz anything because you will be skipping // the reading from stdin. __AFL_INIT(); #endif // BC_ENABLE_AFL // Execute from stdin. bc always does. if (BC_VM_RUN_STDIN(has_file)) bc_vm_stdin(); } void bc_vm_boot(int argc, char* argv[]) { int ttyin, ttyout, ttyerr; bool tty; const char* const env_len = BC_VM_LINE_LENGTH_STR; const char* const env_args = BC_VM_ENV_ARGS_STR; const char* const env_exit = BC_VM_EXPR_EXIT_STR; const char* const env_clamp = BC_VM_DIGIT_CLAMP_STR; int env_exit_def = BC_VM_EXPR_EXIT_DEF; int env_clamp_def = BC_VM_DIGIT_CLAMP_DEF; BcBigDig scale = BC_NUM_BIGDIG_MAX; BcBigDig env_scale = BC_NUM_BIGDIG_MAX; BcBigDig ibase = BC_NUM_BIGDIG_MAX; BcBigDig env_ibase = BC_NUM_BIGDIG_MAX; BcBigDig obase = BC_NUM_BIGDIG_MAX; BcBigDig env_obase = BC_NUM_BIGDIG_MAX; // We need to know which of stdin, stdout, and stderr are tty's. ttyin = isatty(STDIN_FILENO); ttyout = isatty(STDOUT_FILENO); ttyerr = isatty(STDERR_FILENO); tty = (ttyin != 0 && ttyout != 0 && ttyerr != 0); vm->flags |= ttyin ? BC_FLAG_TTYIN : 0; vm->flags |= tty ? BC_FLAG_TTY : 0; vm->flags |= ttyin && ttyout ? BC_FLAG_I : 0; // Set up signals. bc_vm_sigaction(); // Initialize some vm stuff. This is separate to make things easier for the // library. bc_vm_init(); // Explicitly set this in case NULL isn't all zeroes. vm->file = NULL; // Set the error messages. bc_vm_gettext(); #if BC_ENABLE_LINE_LIB // Initialize the output file buffers. bc_file_init(&vm->ferr, stderr); bc_file_init(&vm->fout, stdout); // Set the input buffer. vm->buf = output_bufs; #else // BC_ENABLE_LINE_LIB // Initialize the output file buffers. They each take portions of the global // buffer. stdout gets more because it will probably have more data. bc_file_init(&vm->ferr, STDERR_FILENO, output_bufs + BC_VM_STDOUT_BUF_SIZE, BC_VM_STDERR_BUF_SIZE); bc_file_init(&vm->fout, STDOUT_FILENO, output_bufs, BC_VM_STDOUT_BUF_SIZE); // Set the input buffer to the rest of the global buffer. vm->buf = output_bufs + BC_VM_STDOUT_BUF_SIZE + BC_VM_STDERR_BUF_SIZE; #endif // BC_ENABLE_LINE_LIB // Set the line length by environment variable. vm->line_len = (uint16_t) bc_vm_envLen(env_len); bc_vm_setenvFlag(env_exit, env_exit_def, BC_FLAG_EXPR_EXIT); bc_vm_setenvFlag(env_clamp, env_clamp_def, BC_FLAG_DIGIT_CLAMP); // Clear the files and expressions vectors, just in case. This marks them as // *not* allocated. bc_vec_clear(&vm->files); bc_vec_clear(&vm->exprs); #if !BC_ENABLE_LIBRARY // Initialize the slab vector. bc_slabvec_init(&vm->slabs); #endif // !BC_ENABLE_LIBRARY // Initialize the program and main parser. These have to be in this order // because the program has to be initialized first, since a pointer to it is // passed to the parser. bc_program_init(&vm->prog); bc_parse_init(&vm->prs, &vm->prog, BC_PROG_MAIN); // Set defaults. vm->flags |= BC_TTY ? BC_FLAG_P | BC_FLAG_R : 0; vm->flags |= BC_I ? BC_FLAG_Q : 0; #if BC_ENABLED if (BC_IS_BC) { // bc checks this environment variable to see if it should run in // standard mode. char* var = bc_vm_getenv("POSIXLY_CORRECT"); vm->flags |= BC_FLAG_S * (var != NULL); bc_vm_getenvFree(var); // Set whether we print the banner or not. if (BC_I) bc_vm_setenvFlag("BC_BANNER", BC_DEFAULT_BANNER, BC_FLAG_Q); } #endif // BC_ENABLED // Are we in TTY mode? if (BC_TTY) { const char* const env_tty = BC_VM_TTY_MODE_STR; int env_tty_def = BC_VM_TTY_MODE_DEF; const char* const env_prompt = BC_VM_PROMPT_STR; int env_prompt_def = BC_VM_PROMPT_DEF; // Set flags for TTY mode and prompt. bc_vm_setenvFlag(env_tty, env_tty_def, BC_FLAG_TTY); bc_vm_setenvFlag(env_prompt, tty ? env_prompt_def : 0, BC_FLAG_P); #if BC_ENABLE_HISTORY // If TTY mode is used, activate history. if (BC_TTY) bc_history_init(&vm->history); #endif // BC_ENABLE_HISTORY } // Process environment and command-line arguments. bc_vm_envArgs(env_args, &env_scale, &env_ibase, &env_obase); bc_args(argc, argv, true, &scale, &ibase, &obase); // This section is here because we don't want the math library to stomp on // the user's given value for scale. And we don't want ibase affecting how // the scale is interpreted. Also, it's sectioned off just for this comment. { BC_SIG_UNLOCK; scale = scale == BC_NUM_BIGDIG_MAX ? env_scale : scale; #if BC_ENABLED // Assign the library value only if it is used and no value was set. scale = scale == BC_NUM_BIGDIG_MAX && BC_L ? 20 : scale; #endif // BC_ENABLED obase = obase == BC_NUM_BIGDIG_MAX ? env_obase : obase; ibase = ibase == BC_NUM_BIGDIG_MAX ? env_ibase : ibase; if (scale != BC_NUM_BIGDIG_MAX) { bc_program_assignBuiltin(&vm->prog, true, false, scale); } if (obase != BC_NUM_BIGDIG_MAX) { bc_program_assignBuiltin(&vm->prog, false, true, obase); } // This is last to avoid it affecting the value of the others. if (ibase != BC_NUM_BIGDIG_MAX) { bc_program_assignBuiltin(&vm->prog, false, false, ibase); } BC_SIG_LOCK; } // If we are in interactive mode... if (BC_I) { const char* const env_sigint = BC_VM_SIGINT_RESET_STR; int env_sigint_def = BC_VM_SIGINT_RESET_DEF; // Set whether we reset on SIGINT or not. bc_vm_setenvFlag(env_sigint, env_sigint_def, BC_FLAG_SIGINT); } #if BC_ENABLED // Disable global stacks in POSIX mode. if (BC_IS_POSIX) vm->flags &= ~(BC_FLAG_G); // Print the banner if allowed. We have to be in bc, in interactive mode, // and not be quieted by command-line option or environment variable. if (BC_IS_BC && BC_I && (vm->flags & BC_FLAG_Q)) { bc_vm_info(NULL); bc_file_putchar(&vm->fout, bc_flush_none, '\n'); bc_file_flush(&vm->fout, bc_flush_none); } #endif // BC_ENABLED BC_SIG_UNLOCK; // Start executing. bc_vm_exec(); } #endif // !BC_ENABLE_LIBRARY void bc_vm_init(void) { #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY BC_SIG_ASSERT_LOCKED; #if !BC_ENABLE_LIBRARY // Set up the constant zero. bc_num_setup(&vm->zero, vm->zero_num, BC_VM_ONE_CAP); #endif // !BC_ENABLE_LIBRARY // Set up more constant BcNum's. bc_num_setup(&vm->one, vm->one_num, BC_VM_ONE_CAP); bc_num_one(&vm->one); // Set up more constant BcNum's. // NOLINTNEXTLINE memcpy(vm->max_num, bc_num_bigdigMax, bc_num_bigdigMax_size * sizeof(BcDig)); // NOLINTNEXTLINE memcpy(vm->max2_num, bc_num_bigdigMax2, bc_num_bigdigMax2_size * sizeof(BcDig)); bc_num_setup(&vm->max, vm->max_num, BC_NUM_BIGDIG_LOG10); bc_num_setup(&vm->max2, vm->max2_num, BC_NUM_BIGDIG_LOG10); vm->max.len = bc_num_bigdigMax_size; vm->max2.len = bc_num_bigdigMax2_size; // Set up the maxes for the globals. vm->maxes[BC_PROG_GLOBALS_IBASE] = BC_NUM_MAX_POSIX_IBASE; vm->maxes[BC_PROG_GLOBALS_OBASE] = BC_MAX_OBASE; vm->maxes[BC_PROG_GLOBALS_SCALE] = BC_MAX_SCALE; #if BC_ENABLE_EXTRA_MATH vm->maxes[BC_PROG_MAX_RAND] = ((BcRand) 0) - 1; #endif // BC_ENABLE_EXTRA_MATH #if BC_ENABLED #if !BC_ENABLE_LIBRARY // bc has a higher max ibase when it's not in POSIX mode. if (BC_IS_BC && !BC_IS_POSIX) #endif // !BC_ENABLE_LIBRARY { vm->maxes[BC_PROG_GLOBALS_IBASE] = BC_NUM_MAX_IBASE; } #endif // BC_ENABLED } #if BC_ENABLE_LIBRARY void bc_vm_atexit(void) { #if BC_DEBUG #if BC_ENABLE_LIBRARY BcVm* vm = bcl_getspecific(); #endif // BC_ENABLE_LIBRARY #endif // BC_DEBUG bc_vm_shutdown(); #if BC_DEBUG bc_vec_free(&vm->jmp_bufs); #endif // BC_DEBUG } #else // BC_ENABLE_LIBRARY int bc_vm_atexit(int status) { // Set the status correctly. int s = BC_STATUS_IS_ERROR(status) ? status : BC_STATUS_SUCCESS; bc_vm_shutdown(); #if BC_DEBUG bc_vec_free(&vm->jmp_bufs); #endif // BC_DEBUG return s; } #endif // BC_ENABLE_LIBRARY diff --git a/contrib/bc/tests/bc/all.txt b/contrib/bc/tests/bc/all.txt index af5eaaa42fb7..3d0ea05ba7c0 100644 --- a/contrib/bc/tests/bc/all.txt +++ b/contrib/bc/tests/bc/all.txt @@ -1,60 +1,61 @@ decimal print parse lib2 print2 length scale shift add subtract multiply divide modulus power sqrt trunc places vars boolean comp abs assignments functions scientific engineering globals strings strings2 letters exponent log pi arctangent sine cosine bessel +fib arrays misc misc1 misc2 misc3 misc4 misc5 misc6 misc7 misc8 void rand recursive_arrays divmod modexp bitfuncs leadingzero is_number is_string asciify_array line_by_line1 line_by_line2 line_loop_quit1 line_loop_quit2 diff --git a/contrib/bc/tests/bc/fib.txt b/contrib/bc/tests/bc/fib.txt new file mode 100644 index 000000000000..2fa2eea143ed --- /dev/null +++ b/contrib/bc/tests/bc/fib.txt @@ -0,0 +1,31 @@ +fib(0) +fib(1) +fib(2) +fib(3) +fib(4) +fib(5) +fib(6) +fib(7) +fib(8) +fib(9) +fib(10) +fib(11) +fib(12) +fib(13) +fib(14) +fib(15) +fib(16) +fib(17) +fib(18) +fib(19) +fib(20) +fib(21) +fib(22) +fib(23) +fib(24) +fib(25) +fib(26) +fib(27) +fib(28) +fib(29) +fib(30) diff --git a/contrib/bc/tests/bc/fib_results.txt b/contrib/bc/tests/bc/fib_results.txt new file mode 100644 index 000000000000..1837f6b7414f --- /dev/null +++ b/contrib/bc/tests/bc/fib_results.txt @@ -0,0 +1,31 @@ +0 +1 +1 +2 +3 +5 +8 +13 +21 +34 +55 +89 +144 +233 +377 +610 +987 +1597 +2584 +4181 +6765 +10946 +17711 +28657 +46368 +75025 +121393 +196418 +317811 +514229 +832040 diff --git a/contrib/bc/tests/bc/scripts/all.txt b/contrib/bc/tests/bc/scripts/all.txt index e2d2aa320c6f..a226bed54234 100644 --- a/contrib/bc/tests/bc/scripts/all.txt +++ b/contrib/bc/tests/bc/scripts/all.txt @@ -1,20 +1,21 @@ multiply.bc divide.bc subtract.bc add.bc print.bc parse.bc +root.bc array.bc array2.bc atan.bc bessel.bc functions.bc globals.bc len.bc rand.bc references.bc screen.bc strings2.bc ifs.bc ifs2.bc afl1.bc diff --git a/contrib/bc/tests/bc/scripts/cbrt.txt b/contrib/bc/tests/bc/scripts/cbrt.txt new file mode 100644 index 000000000000..bae7f3af0578 --- /dev/null +++ b/contrib/bc/tests/bc/scripts/cbrt.txt @@ -0,0 +1,100 @@ +.464158883361277889241007635091 +.215443469003188372175929356651 +.100000000000000000000000000000 +.046415888336127788924100763509 +.021544346900318837217592935665 +.010000000000000000000000000000 +.004641588833612778892410076350 +.002154434690031883721759293566 +.001000000000000000000000000000 +.000464158883361277889241007635 +.000215443469003188372175929356 +.000100000000000000000000000000 +.000046415888336127788924100763 +.000021544346900318837217592935 +.000010000000000000000000000000 +.000004641588833612778892410076 +.000002154434690031883721759293 +.000001000000000000000000000000 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+.000000000000000000000000000001 +.000000000000000000000000000001 +0 +0 +0 +0 +0 diff --git a/contrib/bc/tests/extra_required.txt b/contrib/bc/tests/extra_required.txt index e36d95a1305b..c498802ffaea 100644 --- a/contrib/bc/tests/extra_required.txt +++ b/contrib/bc/tests/extra_required.txt @@ -1,9 +1,10 @@ engineering lib2 +fib places rand scientific shift trunc bitfuncs leadingzero diff --git a/contrib/bc/tests/script.sh b/contrib/bc/tests/script.sh index 438af17c79c4..fef0c5290615 100755 --- a/contrib/bc/tests/script.sh +++ b/contrib/bc/tests/script.sh @@ -1,221 +1,221 @@ #! /bin/sh # # SPDX-License-Identifier: BSD-2-Clause # # Copyright (c) 2018-2023 Gavin D. Howard and contributors. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright notice, this # list of conditions and the following disclaimer. # # * Redistributions in binary form must reproduce the above copyright notice, # this list of conditions and the following disclaimer in the documentation # and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # set -e script="$0" testdir=$(dirname "${script}") . "$testdir/../scripts/functions.sh" outputdir=${BC_TEST_OUTPUT_DIR:-$testdir} # Just print the usage and exit with an error. This can receive a message to # print. # @param 1 A message to print. usage() { if [ $# -eq 1 ]; then printf '%s\n\n' "$1" fi printf 'usage: %s dir script [run_extra_tests] [run_stack_tests] [generate_tests] [time_tests] [exec args...]\n' "$script" exit 1 } # Command-line processing. if [ "$#" -lt 2 ]; then usage "Not enough arguments; expect 2 arguments" fi d="$1" shift check_d_arg "$d" scriptdir="$testdir/$d/scripts" f="$1" shift check_file_arg "$scriptdir/$f" if [ "$#" -gt 0 ]; then run_extra_tests="$1" shift check_bool_arg "$run_extra_tests" else run_extra_tests=1 check_bool_arg "$run_extra_tests" fi if [ "$#" -gt 0 ]; then run_stack_tests="$1" shift check_bool_arg "$run_stack_tests" else run_stack_tests=1 check_bool_arg "$run_stack_tests" fi if [ "$#" -gt 0 ]; then generate="$1" shift check_bool_arg "$generate" else generate=1 check_bool_arg "$generate" fi if [ "$#" -gt 0 ]; then time_tests="$1" shift check_bool_arg "$time_tests" else time_tests=0 check_bool_arg "$generate" fi if [ "$#" -gt 0 ]; then exe="$1" shift check_exec_arg "$exe" else exe="$testdir/../bin/$d" fi # Set stuff for the correct calculator. if [ "$d" = "bc" ]; then if [ "$run_stack_tests" -ne 0 ]; then options="-lgqC" else options="-lqC" fi halt="halt" else options="-xC" halt="q" fi name="${f%.*}" # We specifically want to skip this because it is handled specially. if [ "$f" = "timeconst.bc" ]; then exit 0 fi # Skip the tests that require extra math if we don't have it. if [ "$run_extra_tests" -eq 0 ]; then - if [ "$f" = "rand.bc" ]; then + if [ "$f" = "rand.bc" ] || [ "$f" = "root.bc" ]; then printf 'Skipping %s script: %s\n' "$d" "$f" exit 0 fi fi # Skip the tests that require global stacks flag if we are not allowed to run # them. if [ "$run_stack_tests" -eq 0 ]; then if [ "$f" = "globals.bc" ] || [ "$f" = "references.bc" ] || [ "$f" = "rand.bc" ]; then printf 'Skipping %s script: %s\n' "$d" "$f" exit 0 fi fi out="$outputdir/${d}_outputs/${name}_script_results.txt" outdir=$(dirname "$out") # Make sure the directory exists. if [ ! -d "$outdir" ]; then mkdir -p "$outdir" fi # I use these, so unset them to make the tests work. unset BC_ENV_ARGS unset BC_LINE_LENGTH unset DC_ENV_ARGS unset DC_LINE_LENGTH s="$scriptdir/$f" orig="$testdir/$name.txt" results="$scriptdir/$name.txt" if [ -f "$orig" ]; then res="$orig" elif [ -f "$results" ]; then res="$results" elif [ "$generate" -eq 0 ]; then printf 'Skipping %s script %s\n' "$d" "$f" exit 0 else set +e # This is to check that the command exists. If not, we should not try to # generate the test. Instead, we should just skip. command -v "$d" 1>/dev/null 2>&1 err="$?" set -e if [ "$err" -ne 0 ]; then printf 'Could not find %s to generate results; skipping %s script %s\n' "$d" "$d" "$f" exit 0 fi # This sed, and the script, are to remove an incompatibility with GNU bc, # where GNU bc is wrong. See the development manual # (manuals/development.md#script-tests) for more information. printf 'Generating %s results...' "$f" printf '%s\n' "$halt" 2> /dev/null | "$d" "$s" | sed -n -f "$testdir/script.sed" > "$results" printf 'done\n' res="$results" fi set +e printf 'Running %s script %s...' "$d" "$f" # Yes this is poor timing, but it works. if [ "$time_tests" -ne 0 ]; then printf '\n' printf '%s\n' "$halt" 2> /dev/null | /usr/bin/time -p "$exe" "$@" $options "$s" > "$out" err="$?" printf '\n' else printf '%s\n' "$halt" 2> /dev/null | "$exe" "$@" $options "$s" > "$out" err="$?" fi checktest "$d" "$err" "script $f" "$res" "$out" rm -f "$out" exec printf 'pass\n'