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* string.c (rb_str_subseq): use rb_str_drop_bytes if possible.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2008-09-29 11:56:43 +00:00
parent 9d2f9f26e8
commit ebb3ace825
2 changed files with 13 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Mon Sep 29 20:41:19 2008 Tanaka Akira <akr@fsij.org>
* string.c (rb_str_subseq): use rb_str_drop_bytes if possible.
Mon Sep 29 20:22:20 2008 Tadayoshi Funaba <tadf@dotrb.org>
* test/date/*.rb: imported additional tests and some adjustments.

10
string.c
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@ -1283,7 +1283,15 @@ rb_str_sublen(VALUE str, long pos)
VALUE
rb_str_subseq(VALUE str, long beg, long len)
{
VALUE str2 = rb_str_new5(str, RSTRING_PTR(str)+beg, len);
VALUE str2;
if (RSTRING_LEN(str) == beg + len) {
str2 = rb_str_new_shared(str);
rb_str_drop_bytes(str2, beg);
}
else {
str2 = rb_str_new5(str, RSTRING_PTR(str)+beg, len);
}
rb_enc_cr_str_copy_for_substr(str2, str);
OBJ_INFECT(str2, str);