Why is T() = T() allowed in C++?
- by Rimo
I believe the expression T() creates an rvalue (by the Standard)
However the following code compiles (at least on gcc4.0)
class T {... };
int main()
{
T() = T();
}
I know technically this is possible because member functions can be invoked on temporaries and the above is just invoking the operator= on the r-value temporary created from T().
But conceptually this is like assigning a new value to an r-value.
Is there a good reason why this is allowed?
