We can cancel #def by #undef.
Can I cancel “using” or “using namespace” in the similar way?
We can cancel #def by #undef. Can I cancel using or using namespace in
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We can cancel #def by #undef.
Can I cancel “using” or “using namespace” in the similar way?
No, you can’t.
Your best solution is not to have
usingdirectives in header files, and minimize (and even remove them completely) their use from source files.If you’re having troubles with namespaces, you can use
::to go to the globalnamespace, but the cleanest way is clearing the directives.EDIT: This applies to C++.