Here's an interesting turn-of-the-tables: I was experimenting with
using SFINAE to disable conversion operators, and I discovered that
almost every compiler except vc6/7 rejects this code:
template <class T> struct voidify { typedef void type; };
template <class T> struct Y {};
struct X
{
template <class T>
operator Y<T> (typename voidify<T>::type) const { return Y<T>(); }
};
int main()
{
X x;
return 0;
}
You can substitute enable_if<condition,void> for voidify to see why I
care; this is just a minimal example.
Note that many of the same compilers will accept voidify<int>::type as
the argument, though!
--
David Abrahams
[EMAIL PROTECTED] * http://www.boost-consulting.com
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