mdw@git.distorted.org.uk Git - cparse/blob - mem.c

   1 /*
   2  * This file is part of Cmarsh
   3  * Copyright (C) 2004 Richard Kettlewell
   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 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, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * 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
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20
  21 #include "cparse.h"
  22
  23 #if USE_GC
  24 # include <gc.h>
  25 #else
  26 static void *GC_malloc(size_t n) {
  27   void *ptr;
  28
  29   if((ptr = malloc(n)))
  30     memset(ptr, 0, n);
  31   return ptr;
  32 }
  33
  34 static void *GC_realloc(void *ptr, size_t n) {
  35   return realloc(ptr, n);
  36 }
  37
  38 static void *GC_malloc_atomic(size_t n) {
  39   return malloc(n);
  40 }
  41 #endif
  42
  43 void *xmalloc(size_t n) {
  44   void *ptr;
  45
  46   if(!(ptr = GC_malloc(n)) && n)
  47     fatal(errno, "error allocating memory");
  48   return ptr;
  49 }
  50
  51 void *xrealloc(void *ptr, size_t n) {
  52   if(!(ptr = GC_realloc(ptr, n)) && n)
  53     fatal(errno, "error allocating memory");
  54   return ptr;
  55 }
  56
  57 void *xmalloc_noptr(size_t n) {
  58   void *ptr;
  59
  60   if(!(ptr = GC_malloc_atomic(n)) && n)
  61     fatal(errno, "error allocating memory");
  62   return ptr;
  63 }
  64
  65 void *xrealloc_noptr(void *ptr, size_t n) {
  66   if(ptr == 0)
  67     return xmalloc_noptr(n);
  68   if(!(ptr = GC_realloc(ptr, n)) && n)
  69     fatal(errno, "error allocating memory");
  70   return ptr;
  71 }
  72
  73 char *xstrdup(const char *s) {
  74   char *t;
  75
  76   if(!(t = GC_malloc_atomic(strlen(s) + 1)))
  77     fatal(errno, "error allocating memory");
  78   return strcpy(t, s);
  79 }
  80
  81 char *xstrndup(const char *s, size_t n) {
  82   char *t;
  83
  84   if(!(t = GC_malloc_atomic(n + 1)))
  85     fatal(errno, "error allocating memory");
  86   memcpy(t, s, n);
  87   t[n] = 0;
  88   return t;
  89 }
  90
  91 /*
  92 Local Variables:
  93 c-basic-offset:2
  94 comment-column:40
  95 End:
  96 */