diff --git a/lib/libc/stdlib/Makefile.inc b/lib/libc/stdlib/Makefile.inc index 3698377b9b27..2cdff5b934cb 100644 --- a/lib/libc/stdlib/Makefile.inc +++ b/lib/libc/stdlib/Makefile.inc @@ -1,155 +1,158 @@ # machine-independent stdlib sources .PATH: ${LIBC_SRCTOP}/${LIBC_ARCH}/stdlib ${LIBC_SRCTOP}/stdlib MISRCS+= \ C99_Exit.c \ a64l.c \ abort.c \ abs.c \ atexit.c \ atof.c \ atoi.c \ atol.c \ atoll.c \ bsearch.c \ bsearch_b.c \ cxa_thread_atexit.c \ cxa_thread_atexit_impl.c \ div.c \ exit.c \ getenv.c \ getopt.c \ getopt_long.c \ getsubopt.c \ hcreate.c \ hcreate_r.c \ hdestroy_r.c \ heapsort.c \ heapsort_b.c \ hsearch_r.c \ imaxabs.c \ imaxdiv.c \ insque.c \ l64a.c \ labs.c \ ldiv.c \ llabs.c \ lldiv.c \ lsearch.c \ memalignment.c \ merge.c \ mergesort_b.c \ ptsname.c \ qsort.c \ qsort_r.c \ qsort_r_compat.c \ qsort_s.c \ quick_exit.c \ radixsort.c \ rand.c \ random.c \ reallocarray.c \ reallocf.c \ realpath.c \ recallocarray.c \ remque.c \ set_constraint_handler_s.c \ strfmon.c \ strtoimax.c \ strtol.c \ strtold.c \ strtoll.c \ strtoq.c \ strtoul.c \ strtonum.c \ strtoull.c \ strtoumax.c \ strtouq.c \ system.c \ tdelete.c \ tdestroy.c \ tfind.c \ tsearch.c \ twalk.c CFLAGS.qsort.c+= -Wsign-compare # Work around an issue on case-insensitive file systems. # libc has both _Exit.c and _exit.s and they both yield # _exit.o (case insensitively speaking). CLEANFILES+=C99_Exit.c C99_Exit.c: ${LIBC_SRCTOP}/stdlib/_Exit.c .NOMETA ln -sf ${.ALLSRC} ${.TARGET} SYM_MAPS+= ${LIBC_SRCTOP}/stdlib/Symbol.map .include "${LIBC_SRCTOP}/stdlib/malloc/Makefile.inc" # machine-dependent stdlib sources .sinclude "${LIBC_SRCTOP}/${LIBC_ARCH}/stdlib/Makefile.inc" MAN+= a64l.3 abort.3 abs.3 atexit.3 atof.3 \ atoi.3 atol.3 at_quick_exit.3 bsearch.3 \ div.3 exit.3 getenv.3 getopt.3 getopt_long.3 getsubopt.3 \ - hcreate.3 imaxabs.3 insque.3 labs.3 llabs.3 \ + hcreate.3 insque.3 \ lsearch.3 memalignment.3 memory.3 ptsname.3 qsort.3 \ quick_exit.3 \ radixsort.3 rand.3 random.3 reallocarray.3 reallocf.3 realpath.3 \ set_constraint_handler_s.3 \ strfmon.3 strtod.3 strtol.3 strtonum.3 strtoul.3 system.3 \ tsearch.3 MLINKS+=a64l.3 l64a.3 \ a64l.3 l64a_r.3 +MLINKS+=abs.3 labs.3 \ + abs.3 llabs.3 \ + abs.3 imaxabs.3 MLINKS+=atol.3 atoll.3 MLINKS+=div.3 ldiv.3 \ div.3 lldiv.3 \ div.3 imaxdiv.3 MLINKS+=exit.3 _Exit.3 MLINKS+=getenv.3 clearenv.3 \ getenv.3 putenv.3 \ getenv.3 secure_getenv.3 \ getenv.3 setenv.3 \ getenv.3 unsetenv.3 MLINKS+=getopt_long.3 getopt_long_only.3 MLINKS+=hcreate.3 hdestroy.3 \ hcreate.3 hsearch.3 MLINKS+=hcreate.3 hcreate_r.3 \ hcreate.3 hdestroy_r.3 \ hcreate.3 hsearch_r.3 MLINKS+=insque.3 remque.3 MLINKS+=lsearch.3 lfind.3 MLINKS+=ptsname.3 grantpt.3 \ ptsname.3 ptsname_r.3 \ ptsname.3 unlockpt.3 MLINKS+=qsort.3 heapsort.3 \ qsort.3 heapsort_b.3 \ qsort.3 mergesort.3 \ qsort.3 mergesort_b.3 \ qsort.3 qsort_b.3 \ qsort.3 qsort_r.3 \ qsort.3 qsort_s.3 MLINKS+=rand.3 rand_r.3 \ rand.3 srand.3 MLINKS+=random.3 initstate.3 \ random.3 setstate.3 \ random.3 srandom.3 \ random.3 srandomdev.3 MLINKS+=radixsort.3 sradixsort.3 MLINKS+=reallocarray.3 recallocarray.3 MLINKS+=set_constraint_handler_s.3 abort_handler_s.3 MLINKS+=set_constraint_handler_s.3 ignore_handler_s.3 MLINKS+=strfmon.3 strfmon_l.3 MLINKS+=strtod.3 strtof.3 \ strtod.3 strtold.3 MLINKS+=strtol.3 strtoll.3 \ strtol.3 strtoq.3 \ strtol.3 strtoimax.3 MLINKS+=strtonum.3 strtonumx.3 MLINKS+=strtoul.3 strtoull.3 \ strtoul.3 strtouq.3 \ strtoul.3 strtoumax.3 MLINKS+=tsearch.3 tdelete.3 \ tsearch.3 tfind.3 \ tsearch.3 twalk.3 \ tsearch.3 tdestroy.3 diff --git a/lib/libc/stdlib/abs.3 b/lib/libc/stdlib/abs.3 index d47f83ea0f73..b5844761ef48 100644 --- a/lib/libc/stdlib/abs.3 +++ b/lib/libc/stdlib/abs.3 @@ -1,77 +1,103 @@ .\" Copyright (c) 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. +.\" Copyright (c) 2026 Aymeric Wibo .\" .\" This code is derived from software contributed to Berkeley by .\" the American National Standards Committee X3, on Information .\" Processing Systems. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. 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. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. .\" -.Dd April 3, 2022 +.Dd February 19, 2026 .Dt ABS 3 .Os .Sh NAME -.Nm abs -.Nd integer absolute value function -.Sh LIBRARY -.Lb libc +.Nm abs , +.Nm labs , +.Nm llabs , +.Nm imaxabs +.Nd return absolute value for integer types .Sh SYNOPSIS +.Lb libc .In stdlib.h .Ft int -.Fn abs "int j" +.Fn abs "int i" +.Ft long +.Fn labs "long i" +.Ft long long +.Fn llabs "long long i" +.In inttypes.h +.Ft intmax_t +.Fn imaxabs "intmax_t i" .Sh DESCRIPTION The -.Fn abs -function -computes -the absolute value of the integer -.Fa j . +.Fn abs , +.Fn labs , +.Fn llabs , +and +.Fn imaxabs +functions compute the absolute value of +.Fa i . .Sh RETURN VALUES The -.Fn abs -function -returns -the absolute value. +.Fn abs , +.Fn labs , +.Fn llabs , +and +.Fn imaxabs +functions return the absolute value. .Sh SEE ALSO .Xr cabs 3 , .Xr fabs 3 , .Xr floor 3 , -.Xr hypot 3 , -.Xr imaxabs 3 , -.Xr labs 3 , -.Xr llabs 3 , -.Xr math 3 +.Xr hypot 3 .Sh STANDARDS The -.Fn abs -function conforms to -.St -isoC-99 . +.Fn abs , +.Fn labs , +.Fn llabs , +and +.Fn imaxabs +functions conform to +.St -isoC-2023 +and +.St -p1003.1-2024 . .Sh HISTORY The .Fn abs function first appeared in .At v6 . +The +.Fn labs +function first appeared in +.Bx 4.3 . +The +.Fn llabs +and +.Fn imaxabs +functions first appeared in +.Fx 5.0 . .Sh BUGS The absolute value of the most negative integer remains negative. diff --git a/lib/libc/stdlib/abs.c b/lib/libc/stdlib/abs.c index baed3795bf5e..3ebbff748897 100644 --- a/lib/libc/stdlib/abs.c +++ b/lib/libc/stdlib/abs.c @@ -1,38 +1,38 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. */ #include int -abs(int j) +abs(int i) { - return(j < 0 ? -j : j); + return(i < 0 ? -i : i); } diff --git a/lib/libc/stdlib/imaxabs.3 b/lib/libc/stdlib/imaxabs.3 deleted file mode 100644 index fa68216facc1..000000000000 --- a/lib/libc/stdlib/imaxabs.3 +++ /dev/null @@ -1,60 +0,0 @@ -.\" Copyright (c) 2001 Mike Barcroft -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. 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 AUTHOR 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 AUTHOR 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. -.\" -.Dd November 14, 2001 -.Dt IMAXABS 3 -.Os -.Sh NAME -.Nm imaxabs -.Nd returns absolute value -.Sh LIBRARY -.Lb libc -.Sh SYNOPSIS -.In inttypes.h -.Ft intmax_t -.Fn imaxabs "intmax_t j" -.Sh DESCRIPTION -The -.Fn imaxabs -function returns the absolute value of -.Fa j . -.Sh SEE ALSO -.Xr abs 3 , -.Xr fabs 3 , -.Xr hypot 3 , -.Xr labs 3 , -.Xr llabs 3 , -.Xr math 3 -.Sh STANDARDS -The -.Fn imaxabs -function conforms to -.St -isoC-99 . -.Sh HISTORY -The -.Fn imaxabs -function first appeared in -.Fx 5.0 . -.Sh BUGS -The absolute value of the most negative integer remains negative. diff --git a/lib/libc/stdlib/imaxabs.c b/lib/libc/stdlib/imaxabs.c index 08a27ac98da7..e0fd9448f0b2 100644 --- a/lib/libc/stdlib/imaxabs.c +++ b/lib/libc/stdlib/imaxabs.c @@ -1,35 +1,35 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2001 Mike Barcroft * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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 AUTHOR 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 AUTHOR 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. */ #include intmax_t -imaxabs(intmax_t j) +imaxabs(intmax_t i) { - return (j < 0 ? -j : j); + return (i < 0 ? -i : i); } diff --git a/lib/libc/stdlib/labs.3 b/lib/libc/stdlib/labs.3 deleted file mode 100644 index 97f527b7d941..000000000000 --- a/lib/libc/stdlib/labs.3 +++ /dev/null @@ -1,64 +0,0 @@ -.\" Copyright (c) 1990, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" the American National Standards Committee X3, on Information -.\" Processing Systems. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. 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. -.\" 3. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. -.\" -.Dd November 14, 2001 -.Dt LABS 3 -.Os -.Sh NAME -.Nm labs -.Nd return the absolute value of a long integer -.Sh LIBRARY -.Lb libc -.Sh SYNOPSIS -.In stdlib.h -.Ft long -.Fn labs "long j" -.Sh DESCRIPTION -The -.Fn labs -function -returns the absolute value of the long integer -.Fa j . -.Sh SEE ALSO -.Xr abs 3 , -.Xr cabs 3 , -.Xr floor 3 , -.Xr imaxabs 3 , -.Xr llabs 3 , -.Xr math 3 -.Sh STANDARDS -The -.Fn labs -function -conforms to -.St -isoC . -.Sh BUGS -The absolute value of the most negative integer remains negative. diff --git a/lib/libc/stdlib/labs.c b/lib/libc/stdlib/labs.c index 23696f1c0f0c..93102b3a2b91 100644 --- a/lib/libc/stdlib/labs.c +++ b/lib/libc/stdlib/labs.c @@ -1,38 +1,38 @@ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. */ #include long -labs(long j) +labs(long i) { - return(j < 0 ? -j : j); + return(i < 0 ? -i : i); } diff --git a/lib/libc/stdlib/llabs.3 b/lib/libc/stdlib/llabs.3 deleted file mode 100644 index 6a12fd539dc6..000000000000 --- a/lib/libc/stdlib/llabs.3 +++ /dev/null @@ -1,60 +0,0 @@ -.\" Copyright (c) 2001 Mike Barcroft -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. 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 AUTHOR 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 AUTHOR 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. -.\" -.Dd November 14, 2001 -.Dt LLABS 3 -.Os -.Sh NAME -.Nm llabs -.Nd returns absolute value -.Sh LIBRARY -.Lb libc -.Sh SYNOPSIS -.In stdlib.h -.Ft "long long" -.Fn llabs "long long j" -.Sh DESCRIPTION -The -.Fn llabs -function returns the absolute value of -.Fa j . -.Sh SEE ALSO -.Xr abs 3 , -.Xr fabs 3 , -.Xr hypot 3 , -.Xr imaxabs 3 , -.Xr labs 3 , -.Xr math 3 -.Sh STANDARDS -The -.Fn llabs -function conforms to -.St -isoC-99 . -.Sh HISTORY -The -.Fn llabs -function first appeared in -.Fx 5.0 . -.Sh BUGS -The absolute value of the most negative integer remains negative. diff --git a/lib/libc/stdlib/llabs.c b/lib/libc/stdlib/llabs.c index ac151e3a5036..ff56e526b8a9 100644 --- a/lib/libc/stdlib/llabs.c +++ b/lib/libc/stdlib/llabs.c @@ -1,35 +1,35 @@ /*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2001 Mike Barcroft * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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 AUTHOR 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 AUTHOR 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. */ #include long long -llabs(long long j) +llabs(long long i) { - return (j < 0 ? -j : j); + return (i < 0 ? -i : i); }