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-rw-r--r--numeric.c6
-rw-r--r--test/ruby/test_float.rb1
2 files changed, 6 insertions, 1 deletions
diff --git a/numeric.c b/numeric.c
index 03d8b86a1d..04fd3a24af 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1309,7 +1309,11 @@ VALUE
rb_float_pow(VALUE x, VALUE y)
{
double dx, dy;
- if (RB_TYPE_P(y, T_FIXNUM)) {
+ if (y == INT2FIX(2)) {
+ dx = RFLOAT_VALUE(x);
+ return DBL2NUM(dx * dx);
+ }
+ else if (RB_TYPE_P(y, T_FIXNUM)) {
dx = RFLOAT_VALUE(x);
dy = (double)FIX2LONG(y);
}
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 0daa3cca57..fbf0d87f8e 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -305,6 +305,7 @@ class TestFloat < Test::Unit::TestCase
assert_equal(1.0, 1.0 ** (2**32))
assert_equal(1.0, 1.0 ** 1.0)
assert_raise(TypeError) { 1.0 ** nil }
+ assert_equal(9.0, 3.0 ** 2)
end
def test_eql