1.. title:: clang-tidy - modernize-use-equals-default 2 3modernize-use-equals-default 4============================ 5 6This check replaces default bodies of special member functions with ``= 7default;``. The explicitly defaulted function declarations enable more 8opportunities in optimization, because the compiler might treat explicitly 9defaulted functions as trivial. 10 11.. code-block:: c++ 12 13 struct A { 14 A() {} 15 ~A(); 16 }; 17 A::~A() {} 18 19 // becomes 20 21 struct A { 22 A() = default; 23 ~A(); 24 }; 25 A::~A() = default; 26 27.. note:: 28 Move-constructor and move-assignment operator are not supported yet. 29 30Options 31------- 32 33.. option:: IgnoreMacros 34 35 If set to `true`, the check will not give warnings inside macros and will 36 ignore special members with bodies contain macros or preprocessor directives. 37 Default is `true`. 38