Question

I just switched from windows (Visual Studio) to Linux (Mint) and now I’m using QTCreator for plain c++ projects. Though everything seems to be working fine when I try to compile the project I was working on with VS2010, g++ won’t accept the following syntax.

enum{
    LINE,
    POLYGON,
    TRIANGLE
}Shapes;

… much code …

gEngine.AddItem(1,0,Shapes::POLYGON,0,0,0);
gEngine.AddItem(1,2,Shapes::POLYGON,400,400,-1);
gEngine.AddItem(1,2,Shapes::POLYGON,800,400,-1);
gEngine.AddItem(1,2,Shapes::POLYGON,800,800,-1);
gEngine.AddItem(1,2,Shapes::POLYGON,400,800,-1);
gEngine.AddItem(1,2,Shapes::POLYGON,400,400,-1);
gEngine.AddItem(1,1,Shapes::POLYGON,0,0,0);

(G++) Returning: Shapes is not a class or a namespace ; even though it compiles perfectly with VS2010.

Answer 1

There is no type Shapes but you have declared a variable called Shapes.

To define the type use enum Shapes {...} then create variables of that type.