Mercurial > gnulib
view lib/malloc.c @ 40189:3ba41edecde6
progreloc: Speed up executable lookup on various platforms.
* lib/progreloc.c: Include <errno.h>.
(safe_read, full_read): New functions.
(find_executable): On GNU/kFreeBSD, FreeBSD, DragonFly, NetBSD, Solaris,
prefer the information from the /proc file system to a PATH search.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Tue, 19 Feb 2019 21:42:54 +0100 |
parents | b06060465f09 |
children |
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/* malloc() function that is glibc compatible. Copyright (C) 1997-1998, 2006-2007, 2009-2019 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 2, 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 <https://www.gnu.org/licenses/>. */ /* written by Jim Meyering and Bruno Haible */ #define _GL_USE_STDLIB_ALLOC 1 #include <config.h> /* Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h. */ #ifdef malloc # define NEED_MALLOC_GNU 1 # undef malloc /* Whereas the gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU. */ #elif GNULIB_MALLOC_GNU && !HAVE_MALLOC_GNU # define NEED_MALLOC_GNU 1 #endif #include <stdlib.h> #include <errno.h> /* Allocate an N-byte block of memory from the heap. If N is zero, allocate a 1-byte block. */ void * rpl_malloc (size_t n) { void *result; #if NEED_MALLOC_GNU if (n == 0) n = 1; #endif result = malloc (n); #if !HAVE_MALLOC_POSIX if (result == NULL) errno = ENOMEM; #endif return result; }