In article <3fc901c337d4$5821a420$8d6c6f50@pc>, Terje Slettebø
wrote:
| Granted, this doesn't appear use SFINAE, though, so maybe leave it out.
Your conversion operator example worked fine for me. test<int>
converted to double, but not to std::string.
| On
| the other hand, does constructors? I get the same kind of error message for
| both constructors and conversion operators, on both Intel C++ and g++:
|
| template<class T>
| class test
| {
| public:
| test(const T &,
| typename enable_if<
| is_arithmetic<T>::value,
| T
| >::type * = 0) {}
| };
|
| test a(1); // Ok
|
| test b(0 (int *) 0); // error: class "enable_if" has no member
| "type"
Maybe you meant:
class test
{
public:
template<class T>
test(const T &,
typename enable_if::type* = 0) {}
};
int main ()
{
test a(1);
test b((int*)0);
}
And yes, test b is an error. If you want to make test b not an error,
then you must add a ctor to accept it:
test(int*) {}
--
Howard Hinnant
Metrowerks
