ref: 7e1dc861194c79a94f8fa92d5819b4ac479d0d4a dir: /sys/src/ape/lib/ap/gen/strrchr.c/
#include <string.h> char* strrchr(const char *s, int c) { char *r; if(c == 0) return strchr(s, 0); r = 0; while(s = strchr(s, c)) r = s++; return r; }