Decimal.isSubnormal
bool isSubnormal() const @safe pure nothrow @nogcTrue for nonzero finites below the normal magnitude range (adjusted exponent below emax-(P-1), the IEEE decimal subnormal class).
bool isSubnormal() const @safe pure nothrow @nogcTrue for nonzero finites below the normal magnitude range (adjusted exponent below emax-(P-1), the IEEE decimal subnormal class).