No template cross-conversions?

From: Daryle Walker (darylew_at_[hidden])
Date: 2000-11-12 22:23:12

For some reason, my cross-version constructors or conversion operators don't
work.  They gave errors when I tried to compile and use them in my test
code.  These examples are from my classes in "more_math.zip" in the Boost
vault.

From "sgn_mag.hpp"
// Why doesn't this work?!
//#ifndef BOOST_NO_MEMBER_TEMPLATES
//        template <typename U>
//        sgn_mag( const sgn_mag<U>& other )
//            : mag_( other.magnitude() ), sgn_( other.negative() )
//            {}
//#endif // BOOST_NO_MEMBER_TEMPLATES

From "imaginary.hpp"
//#ifdef BOOST_NO_MEMBER_TEMPLATES
    operator std::complex<T>() const
        { return std::complex<T>( j_ - j_, j_ ); }
//#else
// Why is this giving syntax errors
//    template <typename U = T>
//    operator std::complex<U>() const
//        { return std::complex<U>( j_ - j_, j_ ); }
//#endif // BOOST_NO_MEMBER_TEMPLATES

I'm using Metrowerks CodeWarrior Pro 5 with the 5.3 update for the (regular)
Mac OS.  Is my code screwed-up or is the compiler missing something?

-- 
Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com