git: 9front

ref: 446c1f6f0f1a56c7bb736d3f92b46f1a5280dbf8
dir: /sys/src/libc/port/strchr.c/

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#include <u.h>
#include <libc.h>

char*
strchr(char *s, int c)
{
	char c0 = c;
	char c1;

	if(c == 0) {
		while(*s++)
			;
		return s-1;
	}

	while(c1 = *s++)
		if(c1 == c0)
			return s-1;
	return 0;
}