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Annotation of embedaddon/libiconv/srclib/allocator.h, revision 1.1.1.1

1.1       misho       1: /* Memory allocators such as malloc+free.
                      2: 
                      3:    Copyright (C) 2011 Free Software Foundation, Inc.
                      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 3 of the License, or
                      8:    (at your option) 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, see <http://www.gnu.org/licenses/>.  */
                     17: 
                     18: /* Written by Paul Eggert.  */
                     19: 
                     20: #ifndef _GL_ALLOCATOR_H
                     21: #define _GL_ALLOCATOR_H
                     22: 
                     23: #include <stddef.h>
                     24: 
                     25: /* An object describing a memory allocator family.  */
                     26: 
                     27: struct allocator
                     28: {
                     29:   /* Do not use GCC attributes such as __attribute__ ((malloc)) with
                     30:      the function types pointed at by these members, because these
                     31:      attributes do not work with pointers to functions.  See
                     32:      <http://lists.gnu.org/archive/html/bug-gnulib/2011-04/msg00007.html>.  */
                     33: 
                     34:   /* Call ALLOCATE to allocate memory, like 'malloc'.  On failure ALLOCATE
                     35:      should return NULL, though not necessarily set errno.  When given
                     36:      a zero size it may return NULL even if successful.  */
                     37:   void *(*allocate) (size_t);
                     38: 
                     39:   /* If nonnull, call REALLOCATE to reallocate memory, like 'realloc'.
                     40:      On failure REALLOCATE should return NULL, though not necessarily set
                     41:      errno.  When given a zero size it may return NULL even if
                     42:      successful.  */
                     43:   void *(*reallocate) (void *, size_t);
                     44: 
                     45:   /* Call FREE to free memory, like 'free'.  */
                     46:   void (*free) (void *);
                     47: 
                     48:   /* If nonnull, call DIE (SIZE) if MALLOC (SIZE) or REALLOC (...,
                     49:      SIZE) fails.  DIE should not return.  SIZE should equal SIZE_MAX
                     50:      if size_t overflow was detected while calculating sizes to be
                     51:      passed to MALLOC or REALLOC.  */
                     52:   void (*die) (size_t);
                     53: };
                     54: 
                     55: /* An allocator using the stdlib functions and a null DIE function.  */
                     56: extern struct allocator const stdlib_allocator;
                     57: 
                     58: #endif /* _GL_ALLOCATOR_H */