Problem with template overloading

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2 total messages Started by brian (b.c.) white Sun, 18 Feb 1996 02:14

#3474

Author: brian (b.c.) white
Date: Sun, 18 Feb 1996 02:14

39 lines
1728 bytes

Is it allowed to overload template names based on their parameters
in the same way that functions can be overloaded?

I tried to create two versions of the same class name as such:

template <class C>
class A {
	[...]
};

template <class C1, class C2>
class A {
	[...]
};


Gcc 2.7.2 gives errors about redefinition even though, as far as I can
tell, these names are distinct.

test.cc:8: declaration of template `template <class C1, class C2> class A'
test.cc:2: conflicts with previous declaration `template <class C> class A'

In the end, I had to create two classes: A1 and A2.

Is this a problem with GCC or does the standard not allow it?

                                        Brian
                                 ( bcwhite@bnr.ca )

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Re: Problem with template overloading

#3477

Author: Steve Clamage
Date: Sun, 18 Feb 1996 06:05

33 lines
1552 bytes

"brian (b.c.) white" <bcwhite@bnr.ca> writes:

>Is it allowed to overload template names based on their parameters
>in the same way that functions can be overloaded?

>I tried to create two versions of the same class name as such:

>template <class C>
>class A {
>	[...]
>};

>template <class C1, class C2>
>class A {
>	[...]
>};

No, that is not allowed. You cannot have more than one template
with the same name in the same scope.

The closest you could come would be to use a default template
parameter or partial specialization. Not all compilers support
those features yet.

--
Steve Clamage, stephen.clamage@eng.sun.com

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