llvm-project/clang-tools-extra/docs/clang-tidy/checks/modernize-use-default-membe...

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.. title:: clang-tidy - modernize-use-default-member-init
modernize-use-default-member-init
=================================
This check converts a default constructor's member initializers into the new
default member initializers in C++11. Other member initializers that match the
default member initializer are removed. This can reduce repeated code or allow
use of '= default'.
.. code-block:: c++
struct A {
A() : i(5), j(10.0) {}
A(int i) : i(i), j(10.0) {}
int i;
double j;
};
// becomes
struct A {
A() {}
A(int i) : i(i) {}
int i{5};
double j{10.0};
};
.. note::
Only converts member initializers for built-in types, enums, and pointers.
The `readability-redundant-member-init` check will remove redundant member
initializers for classes.
Options
-------
.. option:: UseAssignment
If this option is set to non-zero (default is `0`), the check will initialise
members with an assignment. For example:
.. code-block:: c++
struct A {
A() {}
A(int i) : i(i) {}
int i = 5;
double j = 10.0;
};
.. option:: IgnoreMacros
If this option is set to non-zero (default is `1`), the check will not warn
about members declared inside macros.