diff options
| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-06-20 13:05:27 +0000 |
|---|---|---|
| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-06-20 13:05:27 +0000 |
| commit | 6ea1aee76e2642aa0d532a00e0b971dede02d818 (patch) | |
| tree | 3b502465724e5269184ee37fafd636f6fded4cb3 /test/-ext-/bignum | |
| parent | bf017de1f3cefd4adef07a4ee4b0332d14438a21 (diff) | |
| download | ruby-6ea1aee76e2642aa0d532a00e0b971dede02d818.tar.gz | |
* bignum.c (bary_unpack_internal): Return -2 when negative overflow.
(bary_unpack): Set the overflowed bit if an extra BDIGIT exists.
(rb_integer_unpack): Set the overflowed bit.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41494 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/-ext-/bignum')
| -rw-r--r-- | test/-ext-/bignum/test_pack.rb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/test/-ext-/bignum/test_pack.rb b/test/-ext-/bignum/test_pack.rb index 093c9bd212..c2c19a32a2 100644 --- a/test/-ext-/bignum/test_pack.rb +++ b/test/-ext-/bignum/test_pack.rb @@ -194,5 +194,10 @@ class TestBignum < Test::Unit::TestCase assert_equal( -1, Integer.test_unpack("\xFF", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) end + def test_unpack2comp_negative_zero + 0.upto(100) {|n| + assert_equal(-(256**n), Integer.test_unpack("\x00"*n, n, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + } + end end end |