compiler/clib/calloc.c

   1 /*
   2     Copyright © 1995-2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     C99 function calloc().
   6 */
   7
   8 #include <exec/types.h>
   9 #include <string.h>
  10
  11 /*****************************************************************************
  12
  13     NAME */
  14 #include <stdlib.h>
  15
  16         void * calloc (
  17
  18 /*  SYNOPSIS */
  19         size_t count,
  20         size_t size)
  21
  22 /*  FUNCTION
  23         Allocate size bytes of memory, clears the memory (sets all bytes to
  24         0) and returns the address of the first byte.
  25
  26     INPUTS
  27         count - How many time size
  28         size - How much memory to allocate.
  29
  30     RESULT
  31         A pointer to the allocated memory or NULL. If you don't need the
  32         memory anymore, you can pass this pointer to free(). If you don't,
  33         the memory will be freed for you when the application exits.
  34
  35     NOTES
  36         This function must not be used in a shared library or
  37         in a threaded application.
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44         free(), malloc()
  45
  46     INTERNALS
  47
  48 ******************************************************************************/
  49 {
  50     ULONG * mem;
  51
  52     size *= count;
  53
  54     /* Allocate the memory */
  55     mem = malloc (size);
  56
  57     if (mem)
  58         memset (mem, 0, size);
  59
  60     return mem;
  61 } /* calloc */
  62