Mercurial > hg > octave-shane > gnulib-hg
annotate lib/calloc.c @ 7302:8a1a9361108c
* _fpending.c: Include <config.h> unconditionally, since we no
longer worry about uses that don't define HAVE_CONFIG_H.
* acl.c, alloca.c, argmatch.c, atexit.c, backupfile.c:
* basename.c, c-stack.c, c-strtod.c, calloc.c, canon-host.c:
* canonicalize.c, chdir-long.c, chdir-safer.c, chown.c:
* cloexec.c, close-stream.c, closeout.c, creat-safer.c:
* cycle-check.c, diacrit.c, dirchownmod.c, dirfd.c, dirname.c:
* dup-safer.c, dup2.c, error.c, euidaccess.c, exclude.c:
* exitfail.c, fchmodat.c, fchown-stub.c, fd-safer.c:
* file-type.c, fileblocks.c, filemode.c, filenamecat.c:
* fnmatch.c, fopen-safer.c, fprintftime.c, free.c, fsusage.c:
* ftruncate.c, fts-cycle.c, fts.c, full-write.c, gai_strerror.c:
* getcwd.c, getdate.y, getdomainname.c, getgroups.c:
* gethostname.c, gethrxtime.c, getloadavg.c, getlogin_r.c:
* getndelim2.c, getnline.c, getopt.c, getopt1.c, getpass.c:
* gettime.c, gettimeofday.c, getugroups.c, getusershell.c:
* glob.c, group-member.c, hard-locale.c, hash-pjw.c, hash.c:
* human.c, idcache.c, inet_ntop.c, inet_pton.c, inttostr.c:
* isdir.c, lchown.c, linebuffer.c, long-options.c, lstat.c:
* malloc.c, md5.c, memcasecmp.c, memchr.c, memcmp.c, memcoll.c:
* memcpy.c, memmove.c, memrchr.c, mkancesdirs.c, mkdir-p.c:
* mkdir.c, mkdirat.c, mkstemp-safer.c, mkstemp.c, modechange.c:
* mountlist.c, nanosleep.c, obstack.c, open-safer.c:
* openat-die.c, openat.c, pagealign_alloc.c, physmem.c:
* pipe-safer.c, posixtm.c, posixver.c, putenv.c, quote.c:
* quotearg.c, raise.c, readtokens.c, readtokens0.c, readutmp.c:
* realloc.c, regex.c, rename.c, rmdir.c, rpmatch.c, safe-read.c:
* same.c, save-cwd.c, savedir.c, setenv.c, settime.c, sha1.c:
* sig2str.c, snprintf.c, strdup.c, strerror.c, strftime.c:
* stripslash.c, strndup.c, strnlen.c, strpbrk.c, strtod.c:
* strtoimax.c, strtol.c, strverscmp.c, tempname.c, time_r.c:
* timegm.c, tmpfile-safer.c, unlinkdir.c, userspec.c, utime.c:
* utimecmp.c, utimens.c, version-etc-fsf.c, version-etc.c:
* xalloc-die.c, xgetcwd.c, xgethostname.c, xmalloc.c:
* xmemcoll.c, xnanosleep.c, xreadlink.c, xstrtod.c:
* xstrtoimax.c, xstrtol.c, xstrtoumax.c, yesno.c:
Likewise.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Wed, 13 Sep 2006 22:38:14 +0000 |
| parents | 96c32553b4c6 |
| children | a4f83e0e605c |
| rev | line source |
|---|---|
|
5464
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
1 /* calloc() function that is glibc compatible. |
| 5081 | 2 This wrapper function is required at least on Tru64 UNIX 5.1. |
|
7302
8a1a9361108c
* _fpending.c: Include <config.h> unconditionally, since we no
Paul Eggert <eggert@cs.ucla.edu>
parents:
6259
diff
changeset
|
3 Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc. |
| 5081 | 4 |
| 5 This program is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 2, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program; if not, write to the Free Software Foundation, | |
|
5848
a48fb0e98c8c
*** empty log message ***
Paul Eggert <eggert@cs.ucla.edu>
parents:
5464
diff
changeset
|
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5081 | 18 |
| 19 /* written by Jim Meyering */ | |
| 20 | |
|
7302
8a1a9361108c
* _fpending.c: Include <config.h> unconditionally, since we no
Paul Eggert <eggert@cs.ucla.edu>
parents:
6259
diff
changeset
|
21 #include <config.h> |
| 5081 | 22 #undef calloc |
| 23 | |
| 24 #include <stdlib.h> | |
| 25 | |
| 26 /* Allocate and zero-fill an NxS-byte block of memory from the heap. | |
| 27 If N or S is zero, allocate and zero-fill a 1-byte block. */ | |
| 28 | |
| 29 void * | |
| 30 rpl_calloc (size_t n, size_t s) | |
| 31 { | |
|
5464
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
32 size_t bytes; |
|
5927
cb13c1ad85d5
(rpl_calloc): Allocate a 1-byte buffer (not 1xS or Nx1)
Jim Meyering <jim@meyering.net>
parents:
5848
diff
changeset
|
33 |
|
cb13c1ad85d5
(rpl_calloc): Allocate a 1-byte buffer (not 1xS or Nx1)
Jim Meyering <jim@meyering.net>
parents:
5848
diff
changeset
|
34 if (n == 0 || s == 0) |
|
cb13c1ad85d5
(rpl_calloc): Allocate a 1-byte buffer (not 1xS or Nx1)
Jim Meyering <jim@meyering.net>
parents:
5848
diff
changeset
|
35 return calloc (1, 1); |
|
5464
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
36 |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
37 /* Defend against buggy calloc implementations that mishandle |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
38 size_t overflow. */ |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
39 bytes = n * s; |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
40 if (bytes / s != n) |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
41 return NULL; |
|
f7677662318c
(rpl_calloc): Defend against buggy calloc implementations
Paul Eggert <eggert@cs.ucla.edu>
parents:
5081
diff
changeset
|
42 |
| 5081 | 43 return calloc (n, s); |
| 44 } |