HelenOS sources

str_rchr         1733 common/str.c   char *str_rchr(const char *str, char32_t ch)
str_rchr         1733 kernel/generic/common/str.c char *str_rchr(const char *str, char32_t ch)
str_rchr         1733 uspace/lib/c/common/str.c char *str_rchr(const char *str, char32_t ch)