Re: Predeclarations of classes

[Jonathan Wakely <jwakely.gcc@xxxxxxxxx>]

On 13 April 2012 14:14, Simon Lange wrote:
> hallo list,
>
> converting a project from VisualC++ to GCC (4.6.1) the following problem
> occurs:
>
> class A; //*
>
> class B
> {
>
> public:
>
>        A* a;
> };
>
>
> brings at line " //* " the error-message:
>
>        "predeclaration of struct A"
>
>
> it's a simple predeclaration ? any idea ??

You must be using some other compiler, G++ doesn't issue any
diagnostic like that (and I've never heard the term predeclaration
before, it's usually called a forward declaration or more correctly
just declaration, as opposed to definition.)