Forward declaration of a typedef in C++

by

You can do forward typedef. But to do

typedef A B;

you must first forward declare A:

class A;

typedef A B;

More Related Contents:

  1. When can I use a forward declaration?
  2. Is it a good idea to typedef pointers?
  3. What are forward declarations in C++?
  4. Typedef function pointer?
  5. C++ template typedef
  6. Forward declaration of nested types/classes in C++
  7. How do I forward declare an inner class? [duplicate]
  8. Should one use forward declarations instead of includes wherever possible?
  9. Forward declaration with unique_ptr? [duplicate]
  10. Destructors of builtin types (int, char etc..)
  11. When should I use typedef in C++?
  12. Repeated typedefs – invalid in C but valid in C++?
  13. C++ typedef interpretation of const pointers
  14. typedef changes meaning
  15. error: member access into incomplete type : forward declaration of
  16. In C++, is it possible to forward declare a class as inheriting from another class?
  17. Explanation of function pointers
  18. If I do a `typedef` in C or C++, when should I add `_t` at the end of typedef’ed type? [duplicate]
  19. Why, really, deleting an incomplete type is undefined behaviour?
  20. What is forward declaration in c++? [duplicate]
  21. C++ class forward declaration
  22. Why do you use typedef when declaring an enum in C++?
  23. Why does a C++ friend class need a forward declaration only in other namespaces?
  24. Is the typedef-name optional in a typedef declaration?
  25. What is a C++11 extension [-Wc++11-extensions]
  26. forward declaration with vector of class type – pointer to incomplete class type not allowed
  27. C++ Class wrapper around fundamental types
  28. How to typedef a template class? [duplicate]
  29. templated typedef?
  30. How do I typedef a function pointer with the C++11 using syntax?

Leave a Comment