git: 9front

ref: 361400c59f49bcced609f4d9c7ca4c0ad802e7d1
dir: /sys/src/libc/port/runestrchr.c/

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

Rune*
runestrchr(Rune *s, Rune c)
{
	Rune r;

	if(c == 0)
		while(*s++)
			;
	else
		while((r = *s++) != c)
			if(r == 0)
				return 0;
	return s-1;
}