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* string.c (rb_str_subseq): don't use rb_str_drop_bytes for short

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string.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19628 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2008-09-29 14:39:20 +00:00
parent 0001260aaf
commit eace50a9d7
2 changed files with 8 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Sep 29 23:32:25 2008 Tanaka Akira <akr@fsij.org>
* string.c (rb_str_subseq): don't use rb_str_drop_bytes for short
string.
Mon Sep 29 22:54:29 2008 Tadayoshi Funaba <tadf@dotrb.org>
* lib/mathn.rb: added String#to_[rc]. moved def_canon.

5
string.c
View file

@ -1285,8 +1285,9 @@ rb_str_subseq(VALUE str, long beg, long len)
{
VALUE str2;
if (RSTRING_LEN(str) == beg + len) {
str2 = rb_str_new_shared(str);
if (RSTRING_LEN(str) == beg + len &&
RSTRING_EMBED_LEN_MAX < len) {
str2 = rb_str_new_shared(rb_str_new_frozen(str));
rb_str_drop_bytes(str2, beg);
}
else {