RTTI

This component allows users to enable or disable Run-Time Type Information for C++ source files within a library.

IMPORTANT

This component is only supported under GCC, Clang, and MSVC for C++.

Interactions

This component can interact with the Exceptions component in a surprising way. If RTTI is disabled, and Exceptions are enabled, runtime type information is still generated for exceptions. This is a necessary requirement by many compilers. To ensure that your project does not generate any runtime type information, it is recommended to disable both RTTI and Exceptions.

Targets

Dialects::RTTI::Off

Turns RTTI code generation (including language features, such as typeid and dynamic_cast) on for a dependency.

Compilers will typically generate an error if language features requiring RTTI are encountered.

If Dialects::Exceptions::On is set, runtime type information might still be generated due to C++ runtime implementation requirements. To ensure that your project does not generate any runtime type information in any situation, it is recommended to disable both RTTI and Exceptions.

Dialects::RTTI::On

Turns RTTI code generation (including language features, such as typeid and dynamic_cast) on for a dependency.

If Dialects::Exceptions::Off is set, dynamic_cast<T&> calls will most likely generate a compiler error.