numeric.c: Numeric#positive? and Numeric#negative?

* numeric.c (num_positive_p, num_negative_p): add methods
  Numeric#positive? and Numeric#negative?.
  [ruby-core:69173] [Feature #11151]
* numeric.c (flo_positive_p, flo_negative_p): specialiazed
  functions for Float.
* complex.c (Init_Complex): Complex do not have positive? and
  negative? methods

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 24 insertions, 0 deletions

diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index eab4d12a29..f1e01fc249 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -356,6 +356,30 @@ class TestFloat < Test::Unit::TestCase
     assert_not_predicate(1.0, :zero?)
   end
 
+  def test_positive_p
+    assert_predicate(+1.0, :positive?)
+    assert_not_predicate(+0.0, :positive?)
+    assert_not_predicate(-0.0, :positive?)
+    assert_not_predicate(-1.0, :positive?)
+    assert_predicate(+(0.0.next_float), :positive?)
+    assert_not_predicate(-(0.0.next_float), :positive?)
+    assert_predicate(Float::INFINITY, :positive?)
+    assert_not_predicate(-Float::INFINITY, :positive?)
+    assert_not_predicate(Float::NAN, :positive?)
+  end
+
+  def test_negative_p
+    assert_predicate(-1.0, :negative?)
+    assert_not_predicate(-0.0, :negative?)
+    assert_not_predicate(+0.0, :negative?)
+    assert_not_predicate(+1.0, :negative?)
+    assert_predicate(-(0.0.next_float), :negative?)
+    assert_not_predicate(+(0.0.next_float), :negative?)
+    assert_predicate(-Float::INFINITY, :negative?)
+    assert_not_predicate(Float::INFINITY, :negative?)
+    assert_not_predicate(Float::NAN, :negative?)
+  end
+
   def test_infinite_p
     inf = Float::INFINITY
     assert_equal(1, inf.infinite?)