Global templates and namespaces

[Yevgen Muntyan]

Hello all,

I have a piece of code which compiles with gcc-3.4 but not with intel compiler 8.1. If I correct
the code for intel compiler, then gcc refuses to compile it. The code is following:

////////////////////////////////// test.cpp
template <typename T>
void func ()
{
static T instance;
}

namespace blah {

class MyClass {
friend void func<MyClass> ();

MyClass () {} // private
};

}


int main ()
{
func<blah::MyClass>();
}
////////////////////////////// end of test.cpp

Error is in the 'friend void func<MyClass> ();' line. When I compile this file with
intel compiler, it says

test.cpp(4): error #373: "blah::MyClass::MyClass()" is inaccessible
static T instance;
^
detected during instantiation of "void func<T>() [with T=blah::MyClass]"

To make the compiler happy I change MyClass to

class MyClass {
friend void ::func<MyClass> (); // note the :: before func

MyClass () {}
};

But when g++ says
test2.cpp:11: error: `void func()' should have been declared inside `::'.

What's correct? I tried Comeau compiler on comeaucomputing.com, it compiles both
versions. Is this just two different bugs of g++ and intel compiler?

Thank you,
Yevgen

 

[Gianni Mariani]

Yevgen Muntyan wrote:
...

What's correct? I tried Comeau compiler on comeaucomputing.com, it
compiles both
versions. Is this just two different bugs of g++ and intel compiler?

I think it's two different bugs and Comeau is right (again).

 

[Gianni Mariani]

Yevgen Muntyan wrote:
..



I think it's two different bugs and Comeau is right (again).

I think the GCC bug is:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8355

 

[Yevgen Muntyan]

Gianni Mariani wrote:
....

I think the GCC bug is:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8355

Seems yes. Well, it's not that bad - at least I'm not going to use Visual Studio...

Regards,
Yevgen