Re: [boost] typeof: automatic ID generation and GCC problems

29 Jul 2004


      ...
This would probably be OK, since GCC has the native typeof support.
However, when I use the native support, I run into a different problem
Arkadiy Vertleyb writes:
that
...
can be illustrated by the following code:
template<class T, class U>
typeof(T() + U()) sum(const T& t, const U& u)
{
        return t + u;
}
main()
{
        sum(5, 3.14); // this is line 9
        return 0;
}
The compile of this code fails with following message:
a.cpp:9: internal compiler error: in write_type, at cp/mangle.c:1555
The following compiles for me (GCC 3.3.3 mingw special):

    template<class T, class U> struct typeof_
    {
        typedef typeof(T() + U()) type;
    };

    template<class T, class U>
    typename typeof_<T,U>::type sum(const T& t, const U& u)
    {
            return t + u;
    }

    int main()
    {
            sum(5, 3.14); // this is line 9
            return 0;
    }


--
Aleksey Gurtovoy
MetaCommunications Engineering