ref: 5e010fd8a82ec3b6552b4002bcd4be0586081e9a 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 = (char*)s++; return r; }