ref: 35ab5a74c2a8a7e197f35b833694aa28d12bade7
dir: /libc/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;
}