tcbrindle

    #if SOME_PREPROCESSOR_JUNK
    import foo;
    #else
    import bar;
    #endif

    #ifdef WIN32
    import mymodule.windows
    #else
    import mymodule.posix
    #endif

    template <int>
    struct foo {
        template <int>
        static int bar(int);
    };

    template <>
    struct foo<8> {
        static const int bar = 99;
    };

    constexpr int some_function() { return (int) sizeof(void*); };

    foo<some_function()>::bar<0>(1);