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A comment on Const vs. constexpr vs. consteval vs. constinit in C++20.

Re:Const vs. constexpr vs. consteval vs. constinit in C++20 by brianjacobs on Monday November 28, 2022 @10:22PM (#33783306)
In summary:

    constexpr variables are constant and usable in constant expressions

    constinit variables are not constant and cannot be used in constant expressions

    constexpr can be applied on local automatic variables; this is not possible with constinit, which can only work on static or thread_local objects

    you can have a constexpr function, but it’s not possible to have a constinit function declaration
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