Question

Can the auto keyword be used as a storage class specifier in C++11?

Is the following code legal in C++11?

int main() {
   auto int x;
}

Answer 1

No the code is ill-formed in C++11. auto in C++11 would be used to deduce the type of a variable from its initializer and it can’t be used as a storage class specifier.

Correct Usage

int main()
{
   auto x = 12; // x is an int
   auto y = 12.3; // y is a double
}