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-rw-r--r--numeric.rb22
1 files changed, 22 insertions, 0 deletions
diff --git a/numeric.rb b/numeric.rb
index fbddaa9f6d6..0746a838203 100644
--- a/numeric.rb
+++ b/numeric.rb
@@ -204,4 +204,26 @@ class Float
Primitive.attr! 'inline'
Primitive.cexpr! 'FLOAT_ZERO_P(self) ? Qtrue : Qfalse'
end
+
+ #
+ # call-seq:
+ # float.positive? -> true or false
+ #
+ # Returns +true+ if +float+ is greater than 0.
+ #
+ def positive?
+ Primitive.attr! 'inline'
+ Primitive.cexpr! 'RFLOAT_VALUE(self) > 0.0 ? Qtrue : Qfalse'
+ end
+
+ #
+ # call-seq:
+ # float.negative? -> true or false
+ #
+ # Returns +true+ if +float+ is less than 0.
+ #
+ def negative?
+ Primitive.attr! 'inline'
+ Primitive.cexpr! 'RFLOAT_VALUE(self) < 0.0 ? Qtrue : Qfalse'
+ end
end