C++ requires all types to be defined before they can be used, which makes it important to include header files in the right order.Fine. But what about my situation:
Is it possible to forward-declare a nested class, then use it as the type for a concrete (not pointer to/reference to) data member of the outer class?
I make regular use of forward class declarations and pointers to such classes. I now have a need to pass a function pointer through a number of layers. I would prefer to include the header that decla
Consider this classic example used to explain what not to do with forward declarations: //in Handle.h file
I am trying to write a simple wrapper around a connection pointer that will return it to the pool when the wrapper is dest开发者_如何转开发royed, but it wont compile because the ConnectionPool and Aut
I can\'t figure out how to forward declare a windows struct. The definition is typedef struct _CONTEXT
I want to use an 3rd party library without using its header file. My code resides in its own namespace, therefore I can\'t use conventional forward declaration as I don\'t want to pollute the global n
I\'ve got a largeish codebase that\'s been around for a while and I\'m trying to tidy it up a bit by refactoring it.One thing I\'d like to do is find all the headers where I could forward declare memb
I\'m 开发者_运维百科doing some policy-based designs here and I have the need to typedef lots of template types to shorten the names.
Observation: the codes pasted below were tested only with GCC 4.4.1, and I\'m only interested in them working with GCC.
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