c++ - Any way to use class typedef but not include that class's header file? -

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say have such header file (foo.h):

class foo { public:     typedef int tag;     // other stuff }

as far know, if want use foo::tag in other headers, must #include "foo.h". there way avoid including foo.h file?

p.s. don't want move typedef out of class's scope.

no.

if want use foo::tag not type same name/type, have include header file.


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