git: purgatorio

ref: 8a788aea84aad3bfbd5b39d78c1925654f3b9e14
dir: /lib9/runestrchr.c/

#include "lib9.h"

Rune*
runestrchr(Rune *s, Rune c)
{
	Rune c0 = c;
	Rune c1;

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

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