ref: cb474632d3f23de10fea2d70a4b4c98d8f3a3755
dir: /sys/src/libc/port/runestrchr.c/
#include <u.h>
#include <libc.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;
}