Top "Forward-declaration" questions

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

forward declaration for objective-c interfaces

How do I forward declare this object: @interface MyClass : NSObject <AVAudioSessionDelegate> { } @end in objective c

objective-c interface forward-declaration
Any way in C++ to forward declare a function prototype?

I make regular use of forward class declarations and pointers to such classes. I now have a need to pass …

c++ forward-declaration function-prototypes
Default template parameters with forward declaration

Is it possible to forward declare a class that uses default arguments without specifying or knowing those arguments? For example, …

c++ templates forward-declaration
Forward declaration of inline functions

I have a header file that is going to contain a large amount (30+) of inline functions. Rather than having the …

c++ c inline c99 forward-declaration
Function prototype vs include header in cpp

I have function that do some work. A.h void doSomething(int n); A.cpp #include "A.h" void doSomething(…

c++ forward-declaration function-prototypes
Can't use std::unique_ptr<T> with T being a forward declaration

Now first, I am aware of the general issues with unique_ptr<> and forward declarations as in Forward …

c++ c++11 unique-ptr forward-declaration
Terminology: Forward Declaration versus Function Prototype

To me these terms are essentially synonymous when using the C programming language. In practice I might prefer "forward declaration" …

c terminology forward-declaration function-prototypes
Why, really, deleting an incomplete type is undefined behaviour?

Consider this classic example used to explain what not to do with forward declarations: //in Handle.h file class Body; …

c++ memory-management destructor forward-declaration delete-operator
Why can't I use a Javascript function before its definition inside a try block?

As discussed here, function definitions can be used before they're defined. But as soon as a section of code is …

javascript firefox function try-catch forward-declaration
Forward declaration of nested enum

I have code similar to the following: class B { } class A { enum { EOne, ETwo } EMyEnum; B myB; } I want to …

c++ enums nested forward-declaration