Retro68/gcc/newlib/libc/stdlib/calloc.c
Wolfgang Thaller ec13cc9ce7 fix newlib
2018-12-29 09:59:36 +01:00

57 lines
1.1 KiB
C

#ifdef MALLOC_PROVIDED
int _dummy_calloc = 1;
#else
/*
FUNCTION
<<calloc>>---allocate space for arrays
INDEX
calloc
INDEX
_calloc_r
SYNOPSIS
#include <stdlib.h>
void *calloc(size_t <[n]>, size_t <[s]>);
void *_calloc_r(void *<[reent]>, size_t <[n]>, size_t <[s]>);
DESCRIPTION
Use <<calloc>> to request a block of memory sufficient to hold an
array of <[n]> elements, each of which has size <[s]>.
The memory allocated by <<calloc>> comes out of the same memory pool
used by <<malloc>>, but the memory block is initialized to all zero
bytes. (To avoid the overhead of initializing the space, use
<<malloc>> instead.)
The alternate function <<_calloc_r>> is reentrant.
The extra argument <[reent]> is a pointer to a reentrancy structure.
RETURNS
If successful, a pointer to the newly allocated space.
If unsuccessful, <<NULL>>.
PORTABILITY
<<calloc>> is ANSI.
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
*/
#include <string.h>
#include <stdlib.h>
#ifndef _REENT_ONLY
void *
calloc (size_t n,
size_t size)
{
return _calloc_r (_REENT, n, size);
}
#endif
#endif /* MALLOC_PROVIDED */