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[/] [or1k/] [trunk/] [newlib/] [newlib/] [libc/] [stdlib/] [calloc.c] - Rev 56
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#ifdef MALLOC_PROVIDED int _dummy_calloc = 1; #else /* FUNCTION <<calloc>>---allocate space for arrays INDEX calloc INDEX _calloc_r ANSI_SYNOPSIS #include <stdlib.h> void *calloc(size_t <[n]>, size_t <[s]>); void *calloc_r(void *<[reent]>, size_t <n>, <size_t> <[s]>); TRAD_SYNOPSIS #include <stdlib.h> char *calloc(<[n]>, <[s]>) size_t <[n]>, <[s]>; char *_calloc_r(<[reent]>, <[n]>, <[s]>) char *<[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 _PTR _DEFUN (calloc, (n, size), size_t n _AND size_t size) { return _calloc_r (_REENT, n, size); } #endif #endif /* MALLOC_PROVIDED */
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