Degrees of constness in C++

This talk is about const-related keywords in C++:

• const
• constexpr
• constinit
• consteval

We will see what they mean, and it may be something else than what you think.

C++ has its specific history: the compatibility with C and language evolution that strives for backwards compatibility. As a result, rather than adding new keywords, we overload their meaning in different contexts, so a single keyword can have multiple meanings.

This will be an overview of many C++ features: from optimizations to template instantiations.

Presenter: Andrzej Krzemieński