Function pointers & template functions

[DaKoadMunky]

My question relates to storing the addresses of functions generated by
templates in pointers to functions.

<CODE>

template<class T>
void Global() {}

namespace ANamespace
{
template<class T>
void InANamespace() {}
}

int main()
{
void (*fncPtr)() = Global<int>; //Compiles on both Comeau & MSVC++.NET

fncPtr = ANamespace::InANamespace<int>; //Compiles on Comeau but not
MSVC++.NET

return 0;
}

</CODE>

Using MSVC++.NET line 1 compiles but line 2 does not.

Using the Comeau Online compiler @ http://www.comeaucomputing.com/tryitout/
both lines compile.

I am assuming that Comeau is correct, but you know what they say about making
assumptions.

Can anyone comment on the correct syntax and which compiler is correct?

Thanks.

 

[Jonathan Turkanis]

<CODE>

template<class T>
void Global() {}

namespace ANamespace
{
template<class T>
void InANamespace() {}
}

int main()
{
void (*fncPtr)() = Global<int>; //Compiles on both Comeau & MSVC++.NET

fncPtr = ANamespace::InANamespace<int>; //Compiles on Comeau but not
MSVC++.NET

return 0;
}

</CODE>

Using MSVC++.NET line 1 compiles but line 2 does not.

Compiles fine for me. Perhaps you are using version 7.0?

Jonathan

 

[DaKoadMunky]

Compiles fine for me. Perhaps you are using version 7.0?

7.0.9466 dated 2002.

 

[Jonathan Turkanis]

7.0.9466 dated 2002.

7.1 is when it became a first-class compiler.

Jonathan

 

[Harald Deischinger]

Using MSVC++.NET line 1 compiles but line 2 does not.
...
Can anyone comment on the correct syntax and which compiler is correct?

I've just tried your code using MSVC 7.1 (compiler version 13.10.3077)
and everything is working fine.

harald