Extra Clang Tools 5 documentation

clang-tidy - google-build-using-namespace

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google-build-using-namespace

Finds using namespace directives.

The check implements the following rule of the Google C++ Style Guide:

You may not use a using-directive to make all names from a namespace available.

// Forbidden -- This pollutes the namespace.
using namespace foo;

Corresponding cpplint.py check name: build/namespaces.

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