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stand/liblua/luaconf.h
- This file was added.
/* | |||||
** $Id: luaconf.h,v 1.259 2016/12/22 13:08:50 roberto Exp $ | |||||
** Configuration file for Lua | |||||
** See Copyright Notice in lua.h | |||||
*/ | |||||
#ifndef luaconf_h | |||||
#define luaconf_h | |||||
#include <limits.h> | |||||
#include <stddef.h> | |||||
/* | |||||
** =================================================================== | |||||
** Search for "@@" to find all configurable definitions. | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
** {==================================================================== | |||||
** System Configuration: macros to adapt (if needed) Lua to some | |||||
** particular platform, for instance compiling it with 32-bit numbers or | |||||
** restricting it to C89. | |||||
** ===================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You | |||||
** can also define LUA_32BITS in the make file, but changing here you | |||||
** ensure that all software connected to Lua will be compiled with the | |||||
** same configuration. | |||||
*/ | |||||
/* #define LUA_32BITS */ | |||||
/* | |||||
@@ LUA_USE_C89 controls the use of non-ISO-C89 features. | |||||
** Define it if you want Lua to avoid the use of a few C99 features | |||||
** or Windows-specific features on Windows. | |||||
*/ | |||||
/* #define LUA_USE_C89 */ | |||||
/* | |||||
** By default, Lua on Windows use (some) specific Windows features | |||||
*/ | |||||
#if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE) | |||||
#define LUA_USE_WINDOWS /* enable goodies for regular Windows */ | |||||
#endif | |||||
#if defined(LUA_USE_WINDOWS) | |||||
#define LUA_DL_DLL /* enable support for DLL */ | |||||
#define LUA_USE_C89 /* broadly, Windows is C89 */ | |||||
#endif | |||||
#if defined(LUA_USE_LINUX) | |||||
#define LUA_USE_POSIX | |||||
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */ | |||||
#define LUA_USE_READLINE /* needs some extra libraries */ | |||||
#endif | |||||
#if defined(LUA_USE_MACOSX) | |||||
#define LUA_USE_POSIX | |||||
#define LUA_USE_DLOPEN /* MacOS does not need -ldl */ | |||||
#define LUA_USE_READLINE /* needs an extra library: -lreadline */ | |||||
#endif | |||||
/* | |||||
@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for | |||||
** C89 ('long' and 'double'); Windows always has '__int64', so it does | |||||
** not need to use this case. | |||||
*/ | |||||
#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) | |||||
#define LUA_C89_NUMBERS | |||||
#endif | |||||
/* | |||||
@@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'. | |||||
*/ | |||||
/* avoid undefined shifts */ | |||||
#if ((INT_MAX >> 15) >> 15) >= 1 | |||||
#define LUAI_BITSINT 32 | |||||
#else | |||||
/* 'int' always must have at least 16 bits */ | |||||
#define LUAI_BITSINT 16 | |||||
#endif | |||||
/* | |||||
@@ LUA_INT_TYPE defines the type for Lua integers. | |||||
@@ LUA_FLOAT_TYPE defines the type for Lua floats. | |||||
** Lua should work fine with any mix of these options (if supported | |||||
** by your C compiler). The usual configurations are 64-bit integers | |||||
** and 'double' (the default), 32-bit integers and 'float' (for | |||||
** restricted platforms), and 'long'/'double' (for C compilers not | |||||
** compliant with C99, which may not have support for 'long long'). | |||||
*/ | |||||
/* predefined options for LUA_INT_TYPE */ | |||||
#define LUA_INT_INT 1 | |||||
#define LUA_INT_LONG 2 | |||||
#define LUA_INT_LONGLONG 3 | |||||
/* predefined options for LUA_FLOAT_TYPE */ | |||||
#define LUA_FLOAT_FLOAT 1 | |||||
#define LUA_FLOAT_DOUBLE 2 | |||||
#define LUA_FLOAT_LONGDOUBLE 3 | |||||
#define LUA_FLOAT_INT64 4 | |||||
#if defined(LUA_32BITS) /* { */ | |||||
/* | |||||
** 32-bit integers and 'float' | |||||
*/ | |||||
#if LUAI_BITSINT >= 32 /* use 'int' if big enough */ | |||||
#define LUA_INT_TYPE LUA_INT_INT | |||||
#else /* otherwise use 'long' */ | |||||
#define LUA_INT_TYPE LUA_INT_LONG | |||||
#endif | |||||
#define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT | |||||
#elif defined(LUA_C89_NUMBERS) /* }{ */ | |||||
/* | |||||
** largest types available for C89 ('long' and 'double') | |||||
*/ | |||||
#define LUA_INT_TYPE LUA_INT_LONG | |||||
#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE | |||||
#endif /* } */ | |||||
/* | |||||
** default configuration for 64-bit Lua ('long long' and 'double') | |||||
*/ | |||||
#if !defined(LUA_INT_TYPE) | |||||
#define LUA_INT_TYPE LUA_INT_LONGLONG | |||||
#endif | |||||
#if !defined(LUA_FLOAT_TYPE) | |||||
#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE | |||||
#endif | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Configuration for Paths. | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
** LUA_PATH_SEP is the character that separates templates in a path. | |||||
** LUA_PATH_MARK is the string that marks the substitution points in a | |||||
** template. | |||||
** LUA_EXEC_DIR in a Windows path is replaced by the executable's | |||||
** directory. | |||||
*/ | |||||
#define LUA_PATH_SEP ";" | |||||
#define LUA_PATH_MARK "?" | |||||
#define LUA_EXEC_DIR "!" | |||||
/* | |||||
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for | |||||
** Lua libraries. | |||||
@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for | |||||
** C libraries. | |||||
** CHANGE them if your machine has a non-conventional directory | |||||
** hierarchy or if you want to install your libraries in | |||||
** non-conventional directories. | |||||
*/ | |||||
#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR | |||||
#if defined(_WIN32) /* { */ | |||||
/* | |||||
** In Windows, any exclamation mark ('!') in the path is replaced by the | |||||
** path of the directory of the executable file of the current process. | |||||
*/ | |||||
#define LUA_LDIR "!\\lua\\" | |||||
#define LUA_CDIR "!\\" | |||||
#define LUA_SHRDIR "!\\..\\share\\lua\\" LUA_VDIR "\\" | |||||
#define LUA_PATH_DEFAULT \ | |||||
LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ | |||||
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" \ | |||||
LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \ | |||||
".\\?.lua;" ".\\?\\init.lua" | |||||
#define LUA_CPATH_DEFAULT \ | |||||
LUA_CDIR"?.dll;" \ | |||||
LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \ | |||||
LUA_CDIR"loadall.dll;" ".\\?.dll" | |||||
#else /* }{ */ | |||||
#define LUA_ROOT "/usr/local/" | |||||
#define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR "/" | |||||
#define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR "/" | |||||
#ifndef LUA_PATH_DEFAULT | |||||
#define LUA_PATH_DEFAULT \ | |||||
LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ | |||||
LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" \ | |||||
"./?.lua;" "./?/init.lua" | |||||
#endif | |||||
#define LUA_CPATH_DEFAULT \ | |||||
LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" | |||||
#endif /* } */ | |||||
/* | |||||
@@ LUA_DIRSEP is the directory separator (for submodules). | |||||
** CHANGE it if your machine does not use "/" as the directory separator | |||||
** and is not Windows. (On Windows Lua automatically uses "\".) | |||||
*/ | |||||
#if defined(_WIN32) | |||||
#define LUA_DIRSEP "\\" | |||||
#else | |||||
#define LUA_DIRSEP "/" | |||||
#endif | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Marks for exported symbols in the C code | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUA_API is a mark for all core API functions. | |||||
@@ LUALIB_API is a mark for all auxiliary library functions. | |||||
@@ LUAMOD_API is a mark for all standard library opening functions. | |||||
** CHANGE them if you need to define those functions in some special way. | |||||
** For instance, if you want to create one Windows DLL with the core and | |||||
** the libraries, you may want to use the following definition (define | |||||
** LUA_BUILD_AS_DLL to get it). | |||||
*/ | |||||
#if defined(LUA_BUILD_AS_DLL) /* { */ | |||||
#if defined(LUA_CORE) || defined(LUA_LIB) /* { */ | |||||
#define LUA_API __declspec(dllexport) | |||||
#else /* }{ */ | |||||
#define LUA_API __declspec(dllimport) | |||||
#endif /* } */ | |||||
#else /* }{ */ | |||||
#define LUA_API extern | |||||
#endif /* } */ | |||||
/* more often than not the libs go together with the core */ | |||||
#define LUALIB_API LUA_API | |||||
#define LUAMOD_API LUALIB_API | |||||
/* | |||||
@@ LUAI_FUNC is a mark for all extern functions that are not to be | |||||
** exported to outside modules. | |||||
@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables | |||||
** that are not to be exported to outside modules (LUAI_DDEF for | |||||
** definitions and LUAI_DDEC for declarations). | |||||
** CHANGE them if you need to mark them in some special way. Elf/gcc | |||||
** (versions 3.2 and later) mark them as "hidden" to optimize access | |||||
** when Lua is compiled as a shared library. Not all elf targets support | |||||
** this attribute. Unfortunately, gcc does not offer a way to check | |||||
** whether the target offers that support, and those without support | |||||
** give a warning about it. To avoid these warnings, change to the | |||||
** default definition. | |||||
*/ | |||||
#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ | |||||
defined(__ELF__) /* { */ | |||||
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern | |||||
#else /* }{ */ | |||||
#define LUAI_FUNC extern | |||||
#endif /* } */ | |||||
#define LUAI_DDEC LUAI_FUNC | |||||
#define LUAI_DDEF /* empty */ | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Compatibility with previous versions | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2. | |||||
@@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1. | |||||
** You can define it to get all options, or change specific options | |||||
** to fit your specific needs. | |||||
*/ | |||||
#if defined(LUA_COMPAT_5_2) /* { */ | |||||
/* | |||||
@@ LUA_COMPAT_MATHLIB controls the presence of several deprecated | |||||
** functions in the mathematical library. | |||||
*/ | |||||
#define LUA_COMPAT_MATHLIB | |||||
/* | |||||
@@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'. | |||||
*/ | |||||
#define LUA_COMPAT_BITLIB | |||||
/* | |||||
@@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod. | |||||
*/ | |||||
#define LUA_COMPAT_IPAIRS | |||||
/* | |||||
@@ LUA_COMPAT_APIINTCASTS controls the presence of macros for | |||||
** manipulating other integer types (lua_pushunsigned, lua_tounsigned, | |||||
** luaL_checkint, luaL_checklong, etc.) | |||||
*/ | |||||
#define LUA_COMPAT_APIINTCASTS | |||||
#endif /* } */ | |||||
#if defined(LUA_COMPAT_5_1) /* { */ | |||||
/* Incompatibilities from 5.2 -> 5.3 */ | |||||
#define LUA_COMPAT_MATHLIB | |||||
#define LUA_COMPAT_APIINTCASTS | |||||
/* | |||||
@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. | |||||
** You can replace it with 'table.unpack'. | |||||
*/ | |||||
#define LUA_COMPAT_UNPACK | |||||
/* | |||||
@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. | |||||
** You can replace it with 'package.searchers'. | |||||
*/ | |||||
#define LUA_COMPAT_LOADERS | |||||
/* | |||||
@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. | |||||
** You can call your C function directly (with light C functions). | |||||
*/ | |||||
#define lua_cpcall(L,f,u) \ | |||||
(lua_pushcfunction(L, (f)), \ | |||||
lua_pushlightuserdata(L,(u)), \ | |||||
lua_pcall(L,1,0,0)) | |||||
/* | |||||
@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. | |||||
** You can rewrite 'log10(x)' as 'log(x, 10)'. | |||||
*/ | |||||
#define LUA_COMPAT_LOG10 | |||||
/* | |||||
@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base | |||||
** library. You can rewrite 'loadstring(s)' as 'load(s)'. | |||||
*/ | |||||
#define LUA_COMPAT_LOADSTRING | |||||
/* | |||||
@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. | |||||
*/ | |||||
#define LUA_COMPAT_MAXN | |||||
/* | |||||
@@ The following macros supply trivial compatibility for some | |||||
** changes in the API. The macros themselves document how to | |||||
** change your code to avoid using them. | |||||
*/ | |||||
#define lua_strlen(L,i) lua_rawlen(L, (i)) | |||||
#define lua_objlen(L,i) lua_rawlen(L, (i)) | |||||
#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) | |||||
#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) | |||||
/* | |||||
@@ LUA_COMPAT_MODULE controls compatibility with previous | |||||
** module functions 'module' (Lua) and 'luaL_register' (C). | |||||
*/ | |||||
#define LUA_COMPAT_MODULE | |||||
#endif /* } */ | |||||
/* | |||||
@@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a | |||||
@@ a float mark ('.0'). | |||||
** This macro is not on by default even in compatibility mode, | |||||
** because this is not really an incompatibility. | |||||
*/ | |||||
/* #define LUA_COMPAT_FLOATSTRING */ | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Configuration for Numbers. | |||||
** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_* | |||||
** satisfy your needs. | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUA_NUMBER is the floating-point type used by Lua. | |||||
@@ LUAI_UACNUMBER is the result of a 'default argument promotion' | |||||
@@ over a floating number. | |||||
@@ l_mathlim(x) corrects limit name 'x' to the proper float type | |||||
** by prefixing it with one of FLT/DBL/LDBL. | |||||
@@ LUA_NUMBER_FRMLEN is the length modifier for writing floats. | |||||
@@ LUA_NUMBER_FMT is the format for writing floats. | |||||
@@ lua_number2str converts a float to a string. | |||||
@@ l_mathop allows the addition of an 'l' or 'f' to all math operations. | |||||
@@ l_floor takes the floor of a float. | |||||
@@ lua_str2number converts a decimal numeric string to a number. | |||||
*/ | |||||
/* The following definitions are good for most cases here */ | |||||
#define l_floor(x) (l_mathop(floor)(x)) | |||||
#define lua_number2str(s,sz,n) \ | |||||
l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n)) | |||||
/* | |||||
@@ lua_numbertointeger converts a float number to an integer, or | |||||
** returns 0 if float is not within the range of a lua_Integer. | |||||
** (The range comparisons are tricky because of rounding. The tests | |||||
** here assume a two-complement representation, where MININTEGER always | |||||
** has an exact representation as a float; MAXINTEGER may not have one, | |||||
** and therefore its conversion to float may have an ill-defined value.) | |||||
*/ | |||||
#define lua_numbertointeger(n,p) \ | |||||
((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \ | |||||
(n) < -(LUA_NUMBER)(LUA_MININTEGER) && \ | |||||
(*(p) = (LUA_INTEGER)(n), 1)) | |||||
/* now the variable definitions */ | |||||
#if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT /* { single float */ | |||||
#define LUA_NUMBER float | |||||
#define l_mathlim(n) (FLT_##n) | |||||
#define LUAI_UACNUMBER double | |||||
#define LUA_NUMBER_FRMLEN "" | |||||
#define LUA_NUMBER_FMT "%.7g" | |||||
#define l_mathop(op) op##f | |||||
#define lua_str2number(s,p) strtof((s), (p)) | |||||
#elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE /* }{ long double */ | |||||
#define LUA_NUMBER long double | |||||
#define l_mathlim(n) (LDBL_##n) | |||||
#define LUAI_UACNUMBER long double | |||||
#define LUA_NUMBER_FRMLEN "L" | |||||
#define LUA_NUMBER_FMT "%.19Lg" | |||||
#define l_mathop(op) op##l | |||||
#define lua_str2number(s,p) strtold((s), (p)) | |||||
#elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE /* }{ double */ | |||||
#define LUA_NUMBER double | |||||
#define l_mathlim(n) (DBL_##n) | |||||
#define LUAI_UACNUMBER double | |||||
#define LUA_NUMBER_FRMLEN "" | |||||
#define LUA_NUMBER_FMT "%.14g" | |||||
#define l_mathop(op) op | |||||
#define lua_str2number(s,p) strtod((s), (p)) | |||||
#elif LUA_FLOAT_TYPE == LUA_FLOAT_INT64 /* }{ int64 */ | |||||
#include "lstd.h" | |||||
#include <machine/_inttypes.h> | |||||
#define panic lua_panic | |||||
/* Hack to use int64 as the LUA_NUMBER from ZFS code, kinda */ | |||||
#define LUA_NUMBER int64_t | |||||
#define l_mathlim(n) (LUA_FLOAT_INT_HACK_##n) | |||||
#define LUA_FLOAT_INT_HACK_MANT_DIG 32 | |||||
#define LUA_FLOAT_INT_HACK_MAX_10_EXP 32 | |||||
#define LUAI_UACNUMBER int64_t | |||||
#define LUA_NUMBER_FRMLEN "" | |||||
#define LUA_NUMBER_FMT "%" PRId64 | |||||
#define l_mathop(x) (lstd_ ## x) | |||||
#define lua_str2number(s,p) strtoll((s), (p), 0) | |||||
#define lua_getlocaledecpoint() '.' | |||||
#else /* }{ */ | |||||
#error "numeric float type not defined" | |||||
#endif /* } */ | |||||
/* | |||||
@@ LUA_INTEGER is the integer type used by Lua. | |||||
** | |||||
@@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER. | |||||
** | |||||
@@ LUAI_UACINT is the result of a 'default argument promotion' | |||||
@@ over a lUA_INTEGER. | |||||
@@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers. | |||||
@@ LUA_INTEGER_FMT is the format for writing integers. | |||||
@@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER. | |||||
@@ LUA_MININTEGER is the minimum value for a LUA_INTEGER. | |||||
@@ lua_integer2str converts an integer to a string. | |||||
*/ | |||||
/* The following definitions are good for most cases here */ | |||||
#define LUA_INTEGER_FMT "%" LUA_INTEGER_FRMLEN "d" | |||||
#define LUAI_UACINT LUA_INTEGER | |||||
#define lua_integer2str(s,sz,n) \ | |||||
l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n)) | |||||
/* | |||||
** use LUAI_UACINT here to avoid problems with promotions (which | |||||
** can turn a comparison between unsigneds into a signed comparison) | |||||
*/ | |||||
#define LUA_UNSIGNED unsigned LUAI_UACINT | |||||
/* now the variable definitions */ | |||||
#if LUA_INT_TYPE == LUA_INT_INT /* { int */ | |||||
#define LUA_INTEGER int | |||||
#define LUA_INTEGER_FRMLEN "" | |||||
#define LUA_MAXINTEGER INT_MAX | |||||
#define LUA_MININTEGER INT_MIN | |||||
#elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */ | |||||
#define LUA_INTEGER long | |||||
#define LUA_INTEGER_FRMLEN "l" | |||||
#define LUA_MAXINTEGER LONG_MAX | |||||
#define LUA_MININTEGER LONG_MIN | |||||
#elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */ | |||||
/* use presence of macro LLONG_MAX as proxy for C99 compliance */ | |||||
#if defined(LLONG_MAX) /* { */ | |||||
/* use ISO C99 stuff */ | |||||
#define LUA_INTEGER long long | |||||
#define LUA_INTEGER_FRMLEN "ll" | |||||
#define LUA_MAXINTEGER LLONG_MAX | |||||
#define LUA_MININTEGER LLONG_MIN | |||||
#elif defined(LUA_USE_WINDOWS) /* }{ */ | |||||
/* in Windows, can use specific Windows types */ | |||||
#define LUA_INTEGER __int64 | |||||
#define LUA_INTEGER_FRMLEN "I64" | |||||
#define LUA_MAXINTEGER _I64_MAX | |||||
#define LUA_MININTEGER _I64_MIN | |||||
#else /* }{ */ | |||||
#error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \ | |||||
or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)" | |||||
#endif /* } */ | |||||
#else /* }{ */ | |||||
#error "numeric integer type not defined" | |||||
#endif /* } */ | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Dependencies with C99 and other C details | |||||
** =================================================================== | |||||
*/ | |||||
/* | |||||
@@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89. | |||||
** (All uses in Lua have only one format item.) | |||||
*/ | |||||
#if !defined(LUA_USE_C89) | |||||
#define l_sprintf(s,sz,f,i) snprintf(s,sz,f,i) | |||||
#else | |||||
#define l_sprintf(s,sz,f,i) ((void)(sz), sprintf(s,f,i)) | |||||
#endif | |||||
/* | |||||
@@ lua_strx2number converts an hexadecimal numeric string to a number. | |||||
** In C99, 'strtod' does that conversion. Otherwise, you can | |||||
** leave 'lua_strx2number' undefined and Lua will provide its own | |||||
** implementation. | |||||
*/ | |||||
#if !defined(LUA_USE_C89) | |||||
#define lua_strx2number(s,p) lua_str2number(s,p) | |||||
#endif | |||||
/* | |||||
@@ lua_number2strx converts a float to an hexadecimal numeric string. | |||||
** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that. | |||||
** Otherwise, you can leave 'lua_number2strx' undefined and Lua will | |||||
** provide its own implementation. | |||||
*/ | |||||
#if !defined(LUA_USE_C89) | |||||
#define lua_number2strx(L,b,sz,f,n) \ | |||||
((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n))) | |||||
#endif | |||||
/* | |||||
** 'strtof' and 'opf' variants for math functions are not valid in | |||||
** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the | |||||
** availability of these variants. ('math.h' is already included in | |||||
** all files that use these macros.) | |||||
*/ | |||||
#if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF)) | |||||
#undef l_mathop /* variants not available */ | |||||
#undef lua_str2number | |||||
#define l_mathop(op) (lua_Number)op /* no variant */ | |||||
#define lua_str2number(s,p) ((lua_Number)strtod((s), (p))) | |||||
#endif | |||||
/* | |||||
@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation | |||||
** functions. It must be a numerical type; Lua will use 'intptr_t' if | |||||
** available, otherwise it will use 'ptrdiff_t' (the nearest thing to | |||||
** 'intptr_t' in C89) | |||||
*/ | |||||
#define LUA_KCONTEXT ptrdiff_t | |||||
#if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \ | |||||
__STDC_VERSION__ >= 199901L | |||||
#include <stdint.h> | |||||
#if defined(INTPTR_MAX) /* even in C99 this type is optional */ | |||||
#undef LUA_KCONTEXT | |||||
#define LUA_KCONTEXT intptr_t | |||||
#endif | |||||
#endif | |||||
/* | |||||
@@ lua_getlocaledecpoint gets the locale "radix character" (decimal point). | |||||
** Change that if you do not want to use C locales. (Code using this | |||||
** macro must include header 'locale.h'.) | |||||
*/ | |||||
#if !defined(lua_getlocaledecpoint) | |||||
#define lua_getlocaledecpoint() (localeconv()->decimal_point[0]) | |||||
#endif | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Language Variations | |||||
** ===================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some | |||||
** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from | |||||
** numbers to strings. Define LUA_NOCVTS2N to turn off automatic | |||||
** coercion from strings to numbers. | |||||
*/ | |||||
/* #define LUA_NOCVTN2S */ | |||||
/* #define LUA_NOCVTS2N */ | |||||
/* | |||||
@@ LUA_USE_APICHECK turns on several consistency checks on the C API. | |||||
** Define it as a help when debugging C code. | |||||
*/ | |||||
#if defined(LUA_USE_APICHECK) | |||||
#include <assert.h> | |||||
#define luai_apicheck(l,e) assert(e) | |||||
#endif | |||||
/* }================================================================== */ | |||||
/* | |||||
** {================================================================== | |||||
** Macros that affect the API and must be stable (that is, must be the | |||||
** same when you compile Lua and when you compile code that links to | |||||
** Lua). You probably do not want/need to change them. | |||||
** ===================================================================== | |||||
*/ | |||||
/* | |||||
@@ LUAI_MAXSTACK limits the size of the Lua stack. | |||||
** CHANGE it if you need a different limit. This limit is arbitrary; | |||||
** its only purpose is to stop Lua from consuming unlimited stack | |||||
** space (and to reserve some numbers for pseudo-indices). | |||||
*/ | |||||
#if LUAI_BITSINT >= 32 | |||||
#define LUAI_MAXSTACK 1000000 | |||||
#else | |||||
#define LUAI_MAXSTACK 15000 | |||||
#endif | |||||
/* | |||||
@@ LUA_EXTRASPACE defines the size of a raw memory area associated with | |||||
** a Lua state with very fast access. | |||||
** CHANGE it if you need a different size. | |||||
*/ | |||||
#define LUA_EXTRASPACE (sizeof(void *)) | |||||
/* | |||||
@@ LUA_IDSIZE gives the maximum size for the description of the source | |||||
@@ of a function in debug information. | |||||
** CHANGE it if you want a different size. | |||||
*/ | |||||
#define LUA_IDSIZE 60 | |||||
/* | |||||
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. | |||||
** CHANGE it if it uses too much C-stack space. (For long double, | |||||
** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a | |||||
** smaller buffer would force a memory allocation for each call to | |||||
** 'string.format'.) | |||||
*/ | |||||
#if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE | |||||
#define LUAL_BUFFERSIZE 8192 | |||||
#else | |||||
#define LUAL_BUFFERSIZE ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer))) | |||||
#endif | |||||
/* }================================================================== */ | |||||
/* | |||||
@@ LUA_QL describes how error messages quote program elements. | |||||
** Lua does not use these macros anymore; they are here for | |||||
** compatibility only. | |||||
*/ | |||||
#define LUA_QL(x) "'" x "'" | |||||
#define LUA_QS LUA_QL("%s") | |||||
/* =================================================================== */ | |||||
/* | |||||
** Local configuration. You can use this space to add your redefinitions | |||||
** without modifying the main part of the file. | |||||
*/ | |||||
#endif |