SHARABLE_SUBSTRING_P 2224 string.c           if (RSTRING_EMBED_LEN_MAX < len && SHARABLE_SUBSTRING_P(beg, len, RSTRING_LEN(str))) {
SHARABLE_SUBSTRING_P 2342 string.c           if (len > RSTRING_EMBED_LEN_MAX && SHARABLE_SUBSTRING_P(p, len, RSTRING_END(str))) {
SHARABLE_SUBSTRING_P 5049 string.c           if (len > RSTRING_EMBED_LEN_MAX && SHARABLE_SUBSTRING_P(beg, len, n)) {