GCC template issue

[o1vk4iN6]

Not sure why this code generates a "no matching function for call to ‘test(main(int, char**)::A)", although the code runs compiles on MSVC, I was wondering if this is not standard ?

// main.cpp //

#include "template.h"

int main(int argc, char** main)
{

    class A {
    public:
        int operator()(){ return 32; }
    };

    A a;

    test( a );

}


// template.h //

template<class T>
int test( T & a )
{
    return a();
}

Although if A is moved out of main it compiles fine.

[Telion]

You need to declare the function test before main.

[Bazzy]

In C++98 local classes cannot be used as template parameters.
Depending on the version of GCC you are using, you may be able to compile that if you compile using the
-std=c++0x or -std=c++11 option.