libsent/src/util/mymalloc.c

説明を見る。

/*
 * Copyright (c) 1991-2007 Kawahara Lab., Kyoto University
 * Copyright (c) 2000-2005 Shikano Lab., Nara Institute of Science and Technology
 * Copyright (c) 2005-2007 Julius project team, Nagoya Institute of Technology
 * All rights reserved
 */

#include <sent/stddefs.h>


void *
mymalloc(size_t size)
{
  void *p;
  if ( (p = malloc(size)) == NULL) {
    jlog("Error: mymalloc: failed to allocate %zu bytes\n", size);
    exit(1);
  }
  return p;
}

void *
mymalloc_big(size_t elsize, size_t nelem)
{
  void *p;
  double limit;

  if (sizeof(size_t) == 4) {    /* 32bit environment */
    limit = (double)4294967296.0 / elsize; /* 2^32 */
    if (nelem >= limit) {
      jlog("Error: mymalloc_big: %zu bytes x %zu unit exceeds 4GB limit\n", elsize, nelem);
      exit(1);
    }
  }
  if ( (p = malloc(nelem * elsize)) == NULL) {
    jlog("Error: mymalloc: failed to allocate %zu bytes\n", nelem * elsize);
    exit(1);
  }
  return p;
}

void *
myrealloc(void *ptr, size_t size)
{
  void *p;
  if ( (p = realloc(ptr,size)) == NULL) {
    jlog("Error: mymalloc: failed to reallocate %zu bytes\n", size);
    exit(1);
  }
  return p;
}

void *
mycalloc(size_t nelem, size_t elsize)
{
  void *p;
  if ( (p = calloc(nelem,elsize)) == NULL) {
    jlog("Error: mymalloc: failed to clear-allocate %zu bytes\n", nelem*elsize);
    exit(1);
  }
  return p;
}

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