Ruby

Each line below raises an error

Complex(:sym, 0, exception: false) # TypeError (not a real) Complex(nil, exception: false) # TypeError (can't convert nil into Complex) Complex(0, nil, exception: false) # TypeError (can't convert nil into Complex) Complex(nil, 0, exception: false) # TypeError (can't convert nil into Complex) Rational(nil, exception: false) # TypeError (can't convert nil into Rational) Rational(nil, nil, exception: false) # TypeError (can't convert nil into Rational) 

Looks like a bug, Integer(nil, exception: false) and Float(nil, exception: false) are not affected, both return nil

Also Integer(arg, exception: false) raises an error for:

Integer(Float::NAN, exception: false) # FloatDomainError (NaN) Integer(Float::INFINITY, exception: false) # FloatDomainError (Infinity) Integer(-Float::INFINITY, exception: false) # FloatDomainError (-Infinity)