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* array.c (rb_ary_dup): should copy contents only. no instance

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variable, no class would be copied.  it would affect methods
  #sort, #reject, #transpose, #uniq, #compact, and #shuffle.
  [ruby-core:33640]

* array.c (rb_ary_reverse_m): ditto.

* array.c (rb_ary_rotate_m): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30148 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2010-12-09 06:46:25 +00:00
parent fc2748e71e
commit 11b3b5ed90
2 changed files with 17 additions and 14 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
Thu Dec 9 11:00:30 2010 Yukihiro Matsumoto <matz@ruby-lang.org>
* array.c (rb_ary_dup): should copy contents only. no instance
variable, no class would be copied. it would affect methods
#sort, #reject, #transpose, #uniq, #compact, and #shuffle.
[ruby-core:33640]
* array.c (rb_ary_reverse_m): ditto.
* array.c (rb_ary_rotate_m): ditto.
Wed Dec 8 21:38:40 2010 NARUSE, Yui <naruse@ruby-lang.org>
* ext/dl/lib/dl/struct.rb: clean a warning: assigned but unused

20
array.c
View file

@ -1527,22 +1527,12 @@ rb_ary_empty_p(VALUE ary)
return Qfalse;
}
static VALUE
rb_ary_dup_setup(VALUE ary)
{
VALUE dup = rb_ary_new2(RARRAY_LEN(ary));
int is_embed = ARY_EMBED_P(dup);
DUPSETUP(dup, ary);
if (is_embed) FL_SET_EMBED(dup);
ARY_SET_LEN(dup, RARRAY_LEN(ary));
return dup;
}
VALUE
rb_ary_dup(VALUE ary)
{
VALUE dup = rb_ary_dup_setup(ary);
VALUE dup = rb_ary_new2(RARRAY_LEN(ary));
MEMCPY(RARRAY_PTR(dup), RARRAY_PTR(ary), VALUE, RARRAY_LEN(ary));
ARY_SET_LEN(dup, RARRAY_LEN(ary));
return dup;
}
@ -1830,14 +1820,15 @@ rb_ary_reverse_bang(VALUE ary)
static VALUE
rb_ary_reverse_m(VALUE ary)
{
VALUE dup = rb_ary_dup_setup(ary);
long len = RARRAY_LEN(ary);
VALUE dup = rb_ary_new2(len);
if (len > 0) {
VALUE *p1 = RARRAY_PTR(ary);
VALUE *p2 = RARRAY_PTR(dup) + len - 1;
do *p2-- = *p1++; while (--len > 0);
}
ARY_SET_LEN(dup, RARRAY_LEN(ary));
return dup;
}
@ -1925,7 +1916,7 @@ rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
}
len = RARRAY_LEN(ary);
rotated = rb_ary_dup_setup(ary);
rotated = rb_ary_new2(len);
if (len > 0) {
cnt = rotate_count(cnt, len);
ptr = RARRAY_PTR(ary);
@ -1934,6 +1925,7 @@ rb_ary_rotate_m(int argc, VALUE *argv, VALUE ary)
MEMCPY(ptr2, ptr + cnt, VALUE, len);
MEMCPY(ptr2 + len, ptr, VALUE, cnt);
}
ARY_SET_LEN(rotated, RARRAY_LEN(ary));
return rotated;
}