essence::index_if< List, Predicate > Struct Template Reference

Static Public Attributes
static constexpr auto	value

Member Data Documentation

value

template<type_list_like List, auto Predicate>

auto essence::index_if< List, Predicate >::value

staticconstexpr

Initial value:

= for_each_as_values<List>([]<typename... Ts>(std::type_identity<Ts>...) {
            bool found{};
            std::size_t index{std::numeric_limits<std::size_t>::max()};
            auto handler = [&, counter = static_cast<std::size_t>(0)]<typename U>(std::type_identity<U>) mutable {
                if (!found && Predicate(std::type_identity<U>{})) {
                    found = true;
                    index = counter;
                }
 
                counter++;
            };
 
            return (handler(std::type_identity<Ts>{}), ..., index);
        })

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

• include/essence/type_list.hpp