clang-tools-extra/docs/clang-tidy/checks/readability/duplicate-include.rst

   1 .. title:: clang-tidy - readability-duplicate-include
   2
   3 readability-duplicate-include
   4 =============================
   5
   6 Looks for duplicate includes and removes them.  The check maintains a list of
   7 included files and looks for duplicates.  If a macro is defined or undefined
   8 then the list of included files is cleared.
   9
  10 Examples:
  11
  12 .. code-block:: c++
  13
  14   #include <memory>
  15   #include <vector>
  16   #include <memory>
  17
  18 becomes
  19
  20 .. code-block:: c++
  21
  22   #include <memory>
  23   #include <vector>
  24
  25 Because of the intervening macro definitions, this code remains unchanged:
  26
  27 .. code-block:: c++
  28
  29   #undef NDEBUG
  30   #include "assertion.h"
  31   // ...code with assertions enabled
  32
  33   #define NDEBUG
  34   #include "assertion.h"
  35   // ...code with assertions disabled