git: 9front

ref: 6e5f4c890d749b67a3ccb301e2dfb80d04f14bcb
dir: /sys/src/libc/port/memchr.c/

View raw version 
#include	<u.h>
#include	<libc.h>

void*
memchr(void *ap, int c, ulong n)
{
	uchar *sp;

	sp = ap;
	c &= 0xFF;
	while(n > 0) {
		if(*sp++ == c)
			return sp-1;
		n--;
	}
	return 0;
}