Retro68/gcc/newlib/libc/string/bzero.c

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2017-04-11 21:13:36 +00:00
/*
FUNCTION
<<bzero>>---initialize memory to zero
INDEX
bzero
ANSI_SYNOPSIS
#include <strings.h>
void bzero(void *<[b]>, size_t <[length]>);
TRAD_SYNOPSIS
#include <strings.h>
void bzero(<[b]>, <[length]>)
void *<[b]>;
size_t <[length]>;
DESCRIPTION
<<bzero>> initializes <[length]> bytes of memory, starting at address
<[b]>, to zero.
RETURNS
<<bzero>> does not return a result.
PORTABILITY
<<bzero>> is in the Berkeley Software Distribution.
Neither ANSI C nor the System V Interface Definition (Issue 2) require
<<bzero>>.
<<bzero>> requires no supporting OS subroutines.
*/
#include <strings.h>
_VOID
_DEFUN (bzero, (b, length),
void *b _AND
size_t length)
{
char *ptr = (char *)b;
while (length--)
*ptr++ = 0;
}