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33 lines
886 B
C++
33 lines
886 B
C++
#pragma once
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#include <type_traits>
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#include <utility>
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template <auto Val, decltype(Val)... List>
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inline constexpr bool static_in_v = std::disjunction_v<std::bool_constant<Val == List>...>;
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template <typename Func, typename Arg>
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bool func_wrapper(Func && func, Arg && arg)
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{
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if constexpr (std::is_void_v<std::invoke_result_t<Func, Arg>>)
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{
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func(arg);
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return false;
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}
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else
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return func(arg);
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}
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template <typename T, T Begin, typename Func, T... Is>
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constexpr bool static_for_impl(Func && f, std::integer_sequence<T, Is...>)
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{
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return (func_wrapper(f, std::integral_constant<T, Begin + Is>{}) || ...);
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}
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template <auto Begin, decltype(Begin) End, typename Func>
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constexpr bool static_for(Func && f)
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{
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using T = decltype(Begin);
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return static_for_impl<T, Begin>(std::forward<Func>(f), std::make_integer_sequence<T, End - Begin>{});
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}
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