"John S. Fine" <johnsfine@xxxxxxxxxxx> writes:
> Can someone with a good understanding of the C++ standard tell me if
> this program is legal C++
>
> #include <iostream>
> int x = 1;
> int main(int argc, char** argv)
> {
> struct {
> int operator()( int y ) { return x + y; }
> } fun;
>
> std::cout << fun( 7 ) << std::endl;
> return 0;
> }
>
> It compiles and runs with gcc 4.4.1. I have done similar things in
> other situations many times, so I assumed that it was valid.
>
> But another compiler (not a version of GCC) reports:
>
> error C2627: member function defined in unnamed class
>
> I hope that other compiler is just wrong. But I'd like someone with a
> better understanding of the standard to comment.
You are not permitted to define a member function in an anonymous
union, but I don't see any such restriction for an anonymous class or
struct.
Ian
