bog report - feature request constant function result as template argument

[Christian <chth at gmx dot net>]

This is not really a bug cause it's defined as "shall be" in ISO C++.
But nevermind most other compilers support this and of course it will be
usefull.
i'm told that VC++ BC and also the Cygwin port of gcc support such
feature ...
actually i'm using a structure with a static const member as workaroud
so it doesn't hurt.

bash-2.03$ cat test.cc
#include <iostream>

template <class C> const int& ifeature()  	// template <class C> int
ifeature() dont work either
{
	static const int r=666;			//
	return r;				// return 666; failed too
};

template < class C,int F=ifeature<C>() >
class example
{
public:
	example(){std::cout<<F<<endl;}
};

main()
{
	example< int >	n;
}
bash-2.03$ g++ test.cc
test.cc: In function `int main()':
test.cc:18: non-constant `ifeature<int>()' cannot be used as template
argument
test.cc:18: ANSI C++ forbids declaration `n' with no type
bash-2.03$ g++ --version
2.95.2



regards Christian