Question

On this question, there’s an answer that states:

You can use typedef to make Colour enumeration type accessible without specifying it’s ‘full name’.

typedef Sample::Colour Colour; Colour c = Colour::BLUE; 

That sounds correct to me, but someone down-voted it and left this comment:

Using the scope resolution operator :: on enums (as in ‘Colour::BLUE’) is a compiler-specific extension, not standard C++

Is that true? I believe I’ve used that on both MSVC and GCC, though I’m not certain of it.

Answer 1

I tried the following code:

enum test {     t1, t2, t3 };  void main()  {     test t = test::t1; } 

Visual C++ 9 compiled it with the following warning:

warning C4482: nonstandard extension used: enum ‘test’ used in qualified name

Doesn’t look like it’s standard.