diff options
Diffstat (limited to 'lib/rational.rb')
| -rw-r--r-- | lib/rational.rb | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/lib/rational.rb b/lib/rational.rb index 1e41b9a28a..e63e8c4814 100644 --- a/lib/rational.rb +++ b/lib/rational.rb @@ -92,7 +92,7 @@ class Rational < Numeric elsif a.kind_of?(Float) Float(self) + a else - x , y = a.coerce(self) + x, y = a.coerce(self) x + y end end @@ -107,7 +107,7 @@ class Rational < Numeric elsif a.kind_of?(Float) Float(self) - a else - x , y = a.coerce(self) + x, y = a.coerce(self) x - y end end @@ -122,7 +122,7 @@ class Rational < Numeric elsif a.kind_of?(Float) Float(self) * a else - x , y = a.coerce(self) + x, y = a.coerce(self) x * y end end @@ -138,7 +138,7 @@ class Rational < Numeric elsif a.kind_of?(Float) Float(self) / a else - x , y = a.coerce(self) + x, y = a.coerce(self) x / y end end @@ -161,7 +161,7 @@ class Rational < Numeric elsif other.kind_of?(Float) Float(self) ** other else - x , y = other.coerce(self) + x, y = other.coerce(self) x ** y end end @@ -184,6 +184,18 @@ class Rational < Numeric end end + def == (other) + if other.kind_of?(Rational) + @numerator == other.numerator and @denominator == other.denominator + elsif other.kind_of?(Integer) + self == Rational.new!(other, 1) + elsif other.kind_of?(Float) + Float(self) == other + else + other == self + end + end + def <=> (other) if other.kind_of?(Rational) num = @numerator * other.denominator @@ -200,9 +212,11 @@ class Rational < Numeric return self <=> Rational.new!(other, 1) elsif other.kind_of?(Float) return Float(self) <=> other - else - x , y = other.coerce(self) + elsif defined? other.coerce + x, y = other.coerce(self) return x <=> y + else + return nil end end |