+
−/* Memory allocators such as malloc+free.
+
−
+
−   Copyright (C) 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 Paul Eggert.  */
+
−
+
−#ifndef _GL_ALLOCATOR_H
+
−#define _GL_ALLOCATOR_H
+
−
+
−#include <stddef.h>
+
−
+
−/* An object describing a memory allocator family.  */
+
−
+
−struct allocator
+
−{
+
−  /* Do not use GCC attributes such as __attribute__ ((malloc)) with
+
−     the function types pointed at by these members, because these
+
−     attributes do not work with pointers to functions.  See
+
−     <http://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00007.html>.  */
+
−
+
−  /* Call ALLOCATE to allocate memory, like 'malloc'.  On failure ALLOCATE
+
−     should return NULL, though not necessarily set errno.  When given
+
−     a zero size it may return NULL even if successful.  */
+
−  void *(*allocate) (size_t);
+
−
+
−  /* If nonnull, call REALLOCATE to reallocate memory, like 'realloc'.
+
−     On failure REALLOCATE should return NULL, though not necessarily set
+
−     errno.  When given a zero size it may return NULL even if
+
−     successful.  */
+
−  void *(*reallocate) (void *, size_t);
+
−
+
−  /* Call FREE to free memory, like 'free'.  */
+
−  void (*free) (void *);
+
−
+
−  /* If nonnull, call DIE (SIZE) if MALLOC (SIZE) or REALLOC (...,
+
−     SIZE) fails.  DIE should not return.  SIZE should equal SIZE_MAX
+
−     if size_t overflow was detected while calculating sizes to be
+
−     passed to MALLOC or REALLOC.  */
+
−  void (*die) (size_t);
+
−};
+
−
+
−/* An allocator using the stdlib functions and a null DIE function.  */
+
−extern struct allocator const stdlib_allocator;
+
−
+
−#endif /* _GL_ALLOCATOR_H */