Question

I have this…

template <typename Key, typename Value>
class A {
public:
    //...
private:
    struct MyStruct{
        Key key;
        Value value;
    };
};

And it gives me the following errors:

Error   1   error C2146: syntax error : missing ';' before identifier 'value' 
Error   2   error C4430: missing type specifier - int assumed.
Error   3   error C4430: missing type specifier - int assumed.

Some specs:
Using Visual Studio 2010
Windows 7 x64

Can my error be before or after these lines?

Answer 1

You forgot a semicolon after the class definition, at the very end of your code.

In some cases you need to write typename Key key; instead of a simple Key key; in templates, since the compiler may not know that Key is really a typename. So try this:

template <typename Key, typename Value>
class A {
public:
    //...
private:
    struct MyStruct {
        /* typename not allowed here */ Key key;
        /* typename not allowed here */ Value value;
    };
};