llvm-project/clang-tools-extra/docs/clang-tidy/checks/google-build-using-namespac...

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google-build-using-namespace
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Finds using namespace directives.
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Namespaces#Namespaces
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.
.. code:: c++
// Forbidden -- This pollutes the namespace.
using namespace foo;
Corresponding cpplint.py check name: ``build/namespaces``.