diff options
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -500,9 +500,12 @@ rb_str_substr(str, beg, len) if (len > sizeof(struct RString)/2 && beg + len == RSTRING(str)->len && !FL_TEST(str, STR_ASSOC)) { - if (!FL_TEST(str, ELTS_SHARED)) str = str_new4(CLASS_OF(str), str); + if (FL_TEST(str, ELTS_SHARED)) + str = RSTRING(str)->aux.shared; + else + str = str_new4(CLASS_OF(str), str); str2 = rb_str_new3(str); - RSTRING(str2)->ptr += beg; + RSTRING(str2)->ptr += RSTRING(str2)->len - len; RSTRING(str2)->len = len; } else { |