git: 9front

ref: 7faa0a6225f7f6d3b4a5b9c0b0ce919a8d7056a2
dir: /sys/src/cmd/unix/drawterm/libc/runestrrchr.c/

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

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

	if(c == 0)
		return runestrchr(s, 0);
	r = 0;
	while(s = runestrchr(s, c))
		r = s++;
	return r;
}