toolame-02l/mem.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "common.h"
   5 #include "mem.h"
   6
   7 /*******************************************************************************
   8 *
   9 *  Allocate number of bytes of memory equal to "block".
  10 *
  11 *******************************************************************************/
  12
  13 void *mem_alloc (unsigned long block, char *item)
  14 {
  15
  16   void *ptr;
  17
  18   ptr = (void *) malloc (block);
  19
  20   if (ptr != NULL) {
  21     memset (ptr, 0, block);
  22   } else {
  23     fprintf (stderr, "Unable to allocate %s\n", item);
  24     exit (0);
  25   }
  26   return (ptr);
  27 }
  28
  29
  30 /****************************************************************************
  31 *
  32 *  Free memory pointed to by "*ptr_addr".
  33 *
  34 *****************************************************************************/
  35
  36 void mem_free (void **ptr_addr)
  37 {
  38
  39   if (*ptr_addr != NULL) {
  40     free (*ptr_addr);
  41     *ptr_addr = NULL;
  42   }
  43
  44 }