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* array.c (rb_ary_entry): extract rb_ary_elt to organize if-conditions

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and check whether is is embdeded at once.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2016-05-15 07:17:46 +00:00
parent 9529e46adf
commit 6b4132724a
2 changed files with 14 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun May 15 16:15:25 2016 NARUSE, Yui <naruse@ruby-lang.org>
* array.c (rb_ary_entry): extract rb_ary_elt to organize if-conditions
and check whether is is embdeded at once.
Sun May 15 10:57:26 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* vm_insnhelper.c (vm_get_ev_const): warn deprecated constant even

11
array.c
View file

@ -1195,10 +1195,17 @@ rb_ary_elt(VALUE ary, long offset)
VALUE
rb_ary_entry(VALUE ary, long offset)
{
long len = RARRAY_LEN(ary);
const VALUE *ptr = RARRAY_CONST_PTR(ary);
if (len == 0) return Qnil;
if (offset < 0) {
offset += RARRAY_LEN(ary);
offset += len;
if (offset < 0) return Qnil;
}
return rb_ary_elt(ary, offset);
else if (len <= offset) {
return Qnil;
}
return ptr[offset];
}
VALUE