ref: d95be792d6b5e4a2f9f1615a40492020c764ee30 dir: /sys/src/libc/port/runestrchr.c/
#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; }