vctr::RequireConstexpr< v > Struct Template Reference

A helper struct intended to check if a value is a constexpr. More...

Detailed Description

template<auto v>
struct vctr::RequireConstexpr< v >

A helper struct intended to check if a value is a constexpr.

This is most useful to check if a member variable is compile time constant or the return value of a member function is compile time constant. Example:

if constexpr (requires { typename RequireConstexpr<T::member>; })
{
    constexpr auto m = T::member;
    // Treat it as a compile time constant
}

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The documentation for this struct was generated from the following file:

• include/vctr/TypeTraitsAndConcepts/Traits.h