Question

Example:

enum SomeEnum
{
   DD,
   PP,
   NN
};

void someFunc(int a)
{
}

int main()
{
  SomeEnum e = DD;
   someFunc(a) // calls someFunc with value 0
  return 0;
}

This works in MSVC but is it non standard?

Thanks

Answer 1

An enum has an underlying integer type (the type used to store the value of the enum), and the enum value can be implicitly converted to that integer type’s value.

In your case the underlying type is int, and the value is 0. Everything is okay.