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Alex Rivera
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Suppose I have class like this (simplified): class Foo_p; class Foo { private: Foo_p *p; public: Foo(); /* methods, etc... */ }; This class is a part of an API. The Foo_p is all the private parts of the class, which are not declared in the class Foo itself as usual, but rather in a separate forward-declared class that is only used by the underlying implementation not visible on the outside. I've seen this pattern used in a couple of projects, is there a name for it? Also, how do I use it properly (e.g. exception safety, etc.)? Where should the actual implementation go? In class Foo, as usual, only using Foo_p for storage of data, or in the Foo_p class with Foo being just a wrapper?
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