33 lines
995 B
ReStructuredText
33 lines
995 B
ReStructuredText
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.. title:: clang-tidy - misc-unused-using-decls
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misc-unused-using-decls
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=======================
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Finds unused ``using`` declarations.
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Unused ``using``` declarations in header files will not be diagnosed since these
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using declarations are part of the header's public API. Allowed header file
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extensions can be configured via the `HeaderFileExtensions` option (see below).
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Example:
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.. code-block:: c++
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// main.cpp
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namespace n { class C; }
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using n::C; // Never actually used.
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Options
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-------
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.. option:: HeaderFileExtensions
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Note: this option is deprecated, it will be removed in :program:`clang-tidy`
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version 19. Please use the global configuration option
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`HeaderFileExtensions`.
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A semicolon-separated list of filename extensions of header files (the filename
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extensions should not include "." prefix). Default is "h,hh,hpp,hxx".
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For extension-less header files, use an empty string or leave an
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empty string between "," if there are other filename extensions.
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