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author | Richard Maw <richard.maw@codethink.co.uk> | 2012-01-17 14:43:55 +0000 |
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committer | Richard Maw <richard.maw@codethink.co.uk> | 2012-01-17 14:43:55 +0000 |
commit | 2de9abc5c9d40b3c716307d67d16146f823fd554 (patch) | |
tree | 6979db67934ddc8b564150b465846a383b428ff8 /gnulib/lib/realloc.c | |
parent | 33cc1c6fda6e72a7bae1401e9b2cec495a4d3ff1 (diff) | |
download | patch-baserock/bootstrap-pass2.tar.gz |
add the output of bootstrapbaserock/bootstrap-pass2baserock/bootstrap
Diffstat (limited to 'gnulib/lib/realloc.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/realloc.c | 79 |
2 files changed, 79 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/realloc.c b/gnulib/lib/realloc.c new file mode 100644 index 0000000..0c96ffa --- /dev/null +++ b/gnulib/lib/realloc.c @@ -0,0 +1,79 @@ +/* realloc() function that is glibc compatible. + + Copyright (C) 1997, 2003-2004, 2006-2007, 2009-2011 Free Software + Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* written by Jim Meyering and Bruno Haible */ + +#define _GL_USE_STDLIB_ALLOC 1 +#include <config.h> + +/* Only the AC_FUNC_REALLOC macro defines 'realloc' already in config.h. */ +#ifdef realloc +# define NEED_REALLOC_GNU 1 +/* Whereas the gnulib module 'realloc-gnu' defines HAVE_REALLOC_GNU. */ +#elif GNULIB_REALLOC_GNU && !HAVE_REALLOC_GNU +# define NEED_REALLOC_GNU 1 +#endif + +/* Infer the properties of the system's malloc function. + The gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU. */ +#if GNULIB_MALLOC_GNU && HAVE_MALLOC_GNU +# define SYSTEM_MALLOC_GLIBC_COMPATIBLE 1 +#endif + +#include <stdlib.h> + +#include <errno.h> + +/* Change the size of an allocated block of memory P to N bytes, + with error checking. If N is zero, change it to 1. If P is NULL, + use malloc. */ + +void * +rpl_realloc (void *p, size_t n) +{ + void *result; + +#if NEED_REALLOC_GNU + if (n == 0) + { + n = 1; + + /* In theory realloc might fail, so don't rely on it to free. */ + free (p); + p = NULL; + } +#endif + + if (p == NULL) + { +#if GNULIB_REALLOC_GNU && !NEED_REALLOC_GNU && !SYSTEM_MALLOC_GLIBC_COMPATIBLE + if (n == 0) + n = 1; +#endif + result = malloc (n); + } + else + result = realloc (p, n); + +#if !HAVE_REALLOC_POSIX + if (result == NULL) + errno = ENOMEM; +#endif + + return result; +} |