* math.c (math_atanh): raise EDOM on FreeBSD when atanh(1).

* math.c (math_log): ditto.

* math.c (math_log2): ditto.

* math.c (math_log10): ditto.

* test/ruby/test_math.rb: test for above.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@18252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/test/ruby/test_math.rb b/test/ruby/test_math.rb
index 67f5e86e4..55f354664 100644
--- a/test/ruby/test_math.rb
+++ b/test/ruby/test_math.rb
@@ -110,6 +110,7 @@ class TestMath < Test::Unit::TestCase
     check(0, Math.log(1, 10))
     check(1, Math.log(10, 10))
     check(2, Math.log(100, 10))
+    assert_equal(1.0/0, Math.log(1.0/0))
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log(0) }
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log(-1) }
   end
@@ -118,6 +119,7 @@ class TestMath < Test::Unit::TestCase
     check(0, Math.log2(1))
     check(1, Math.log2(2))
     check(2, Math.log2(4))
+    assert_equal(1.0/0, Math.log2(1.0/0))
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log2(0) }
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log2(-1) }
   end
@@ -126,6 +128,7 @@ class TestMath < Test::Unit::TestCase
     check(0, Math.log10(1))
     check(1, Math.log10(10))
     check(2, Math.log10(100))
+    assert_equal(1.0/0, Math.log10(1.0/0))
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log10(0) }
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.log10(-1) }
   end
@@ -134,6 +137,7 @@ class TestMath < Test::Unit::TestCase
     check(0, Math.sqrt(0))
     check(1, Math.sqrt(1))
     check(2, Math.sqrt(4))
+    assert_equal(1.0/0, Math.sqrt(1.0/0))
     assert_raise(Errno::EDOM, Errno::ERANGE) { Math.sqrt(-1) }
   end