modernize-use-override¶
Adds override (introduced in C++11) to overridden virtual functions and
removes virtual from those functions as it is not required.
virtual on non base class implementations was used to help indicate to the
user that a function was virtual. C++ compilers did not use the presence of
this to signify an overridden function.
In C++ 11 override and final keywords were introduced to allow
overridden functions to be marked appropriately. Their presence allows
compilers to verify that an overridden function correctly overrides a base
class implementation.
This can be useful as compilers can generate a compile time error when:
The base class implementation function signature changes.
The user has not created the override with the correct signature.
Options¶
- IgnoreDestructors¶
If set to true, this check will not diagnose destructors. Default is false.
- AllowOverrideAndFinal¶
If set to true, this check will not diagnose
overrideas redundant withfinal. This is useful when code will be compiled by a compiler with warning/error checking flags requiringoverrideexplicitly on overridden members, such asgcc -Wsuggest-override/gcc -Werror=suggest-override. Default is false.
- OverrideSpelling¶
Specifies a macro to use instead of
override. This is useful when maintaining source code that also needs to compile with a pre-C++11 compiler.
- FinalSpelling¶
Specifies a macro to use instead of
final. This is useful when maintaining source code that also needs to compile with a pre-C++11 compiler.
Note
For more information on the use of override see https://en.cppreference.com/w/cpp/language/override