DelayedEval.md

<CppML/Functional/DelayedEval.hpp>

Table of Contents

• DelayedEval
• DelayedAliasEval

DelayedEval

template <typename F, int N, typename ...Ts>
using DelayedEval = /*...*/
};

DelayedEval<F, N, Ts...>

DelayedEval<F, N, Ts...> is a helper metafunction invoker that combats the non-varadic parameter pack used as argument for a varadic parameter pack in alias compiler error. It happens, for example, when you pass a parameter pack to an alias expecting

<typename T, typename ...Ts>

a type and a parameter pack.

It is not meant to be used outside implementations.

DelayedAliasEval

template <typename <class...> class F, int N, typename ...Ts>
using DelayedAliasEval = /*...*/
};

DelayedAliasEval<F, N, Ts...>

DelayedEval<F, N, Ts...> is a helper metafunction invoker that combats the non-varadic parameter pack used as argument for a varadic parameter pack in alias compiler error. It happens, for example, when you pass a parameter pack to an alias expecting

<typename T, typename ...Ts>

a type and a parameter pack.

It is not meant to be used outside implementations.