Forward declaration of class in different namespaces
1473
When can I use a forward declaration?
70199
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
102726
Why does C++ parameter scope affect function lookup within a namespace?
136217
Is there an implicit default constructor in C++?
154809
C++ circular dependency - namespace vs struct
45629
Unnamed/anonymous namespaces vs. static functions
13401
Namespace + functions versus static methods on a class
51619
Can I avoid an ambiguity, when I declare a fixed length vector in class?
30244
Is there any way to tell the compiler, inside the main file body, how to find the class?
12666
Header file and extern keyword
83410
Forward declare a type - what is the reason behind this
131448
C++ mutex in namespace std does not name a type
80820
Clr namespace mapping to default xaml namespaces
42190
Forward declaring an enum in C++
34420
What is the best way to solve an Objective-C namespace collision?
136828
Instancing a class with an internal constructor
83606
Forward declare a standard container?