git: 9front

ref: e778313180c86a9a3b25b0188b1c5b2f8c3d6b08
dir: /sys/src/libc/port/memchr.c/

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#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;
}