tidy - misc-unused-using-decls — Extra Clang Tools 22.0.0git documentation (original) (raw)

misc-unused-using-decls¶

Finds unused using declarations.

Unused using declarations in header files will not be diagnosed since these using declarations are part of the header’s public API. Allowed header file extensions can be configured via the global option HeaderFileExtensions.

Example:

// main.cpp namespace n { class C; } using n::C; // Never actually used.