diff options
| -rw-r--r-- | string.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -1969,9 +1969,10 @@ rb_str_resize(VALUE str, long len) ENC_CODERANGE_CLEAR(str); slen = RSTRING_LEN(str); - if (len != slen) { + { const int termlen = TERM_LEN(str); if (STR_EMBED_P(str)) { + if (len == slen) return str; if (len + termlen <= RSTRING_EMBED_LEN_MAX + 1) { STR_SET_EMBED_LEN(str, len); TERM_FILL(RSTRING(str)->as.ary + len, termlen); @@ -1990,11 +1991,13 @@ rb_str_resize(VALUE str, long len) return str; } else if (!independent) { + if (len == slen) return str; str_make_independent_expand(str, len - slen); } else if (slen < len || slen - len > 1024) { REALLOC_N(RSTRING(str)->as.heap.ptr, char, len + termlen); } + else if (len == slen) return str; RSTRING(str)->as.heap.aux.capa = len; RSTRING(str)->as.heap.len = len; TERM_FILL(RSTRING(str)->as.heap.ptr + len, termlen); /* sentinel */ |