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