Top "Forward-declaration" questions

Forward declarations allow statically-typed programs to indicate the type and name of a symbol without actually defining it.

Forward declarations of unnamed struct

Bounty question: So, these two Foos aren't the same thing. Fine. The second form is given in a library. How …

c++ c struct typedef forward-declaration
Forward declaration of std::wstring

// This is a header file. class MyClass; // It can be forward declared because the function uses reference. // However, how can …

c++ stl forward-declaration
Forward Declaration of a Base Class

I'm trying to create proper header files which don't include too many other files to keep them clean and to …

c++ class forward-declaration
Delete objects of incomplete type

This one made me think: class X; void foo(X* p) { delete p; } How can we possibly delete p if …

c++ pointers forward-declaration delete-operator incomplete-type
"Attempting to use the forward class 'Game' as superclass of 'MathGame'" in Cocos2d

I'm making a Cocos2d game for iphone, and I have my main game mode, Game, which inherits from CCLayer. …

objective-c inheritance import forward-declaration
C++ Class forward declaration drawbacks?

I want to use forward declaration of a class in my software, so I can have typedefs and use them …

c++ class typedef forward-declaration
Forward declaration of class doesn't seem to work in C++

The follwing code is compiled in VC++6. I don't understand why I am getting the compilation error C2079: 'b' uses …

c++ header compilation declaration forward-declaration
Is in-class enum forward declaration possible?

I know that in C++11 it's possible to forward declare an enum type (if storage type is provided) e.g. …

c++ c++11 enums nested forward-declaration
forward declaration and namespaces (c++)

My Problem: Got two classes, class A and B, so i got A.h and A.cpp and B.h …

c++ namespaces forward-declaration