ParameterPack< T > Struct Template Reference

#include <apibase.h>

Detailed Description

template<typename... T>
struct maxon::ParameterPack< T >

Helper class to work with parameter packs. IndexOf supports finding the index of a type in the argument list, At supports indexing into the list, ContainsAll implements a subset test:

ParameterPack<Int, Float, String, String>::IndexOf<Float>::value == 1
ParameterPack<Int, Float, String, String>::At<2>::type == String
ParameterPack<Int, Float, String, String>::ContainsAll<String, Int>::value == true

Template Parameters

T	The types of the parameter pack.

Classes
struct	At
struct	IndexOf

Public Types
using	FirstType = void
using	RestPack = ParameterPack<>
template<typename... X>
using	ContainsAll = maxon::details::ParameterPackContainsAll< ParameterPack, X... >
template<template< typename... > class TEMPLATE, typename... X>
using	Apply = TEMPLATE< X..., T... >

Static Public Attributes
static constexpr Int	COUNT

Member Typedef Documentation

FirstType

using FirstType = void

The first type of this parameter pack.

RestPack

using RestPack = ParameterPack<>

ContainsAll

using ContainsAll = maxon::details::ParameterPackContainsAll<ParameterPack, X...>

ContainsAll checks if this parameter pack contains all types X. Besides a list of types X can also be a ParameterPack itself.

ParameterPack<Int, Float, String, String>::ContainsAll<String, Int>::value == true
ParameterPack<Int, Float, String, String>::ContainsAll<ParameterPack<String, Int>>::value == true
ParameterPack<Int, Float, String, String>::ContainsAll<String, Int, Bool>::value == false

Template Parameters

X	Types to check. This can either be a list of types, or a single ParameterPack.

Apply

using Apply = TEMPLATE<X..., T...>

Member Data Documentation

COUNT

constexpr Int COUNT

staticconstexpr