ElmTypes< X, typename > Struct Template Reference

#include "lib/meta/variadic-helper.hpp"

Description

template<class X, typename = void>
struct lib::meta::ElmTypes< X, typename >

Variadic type sequence builder.

This metaprogramming helper template provides an unified view to handle »tuple-like« types and variadic _type sequences.

• the constant SIZ gives the number of elements
• the nested type Idx can be used as index sequence
• Seq is a variadic type sequence with the extracted types
• Tup is a std::tuple over these types
• the nested template Apply wraps each type into another template
• Rebind likewise instantiates another template with the element types
• AndAll applies a predicate and combines the result with logical and
• OrAll similarly evaluates logical or on the application results

Definition at line 166 of file variadic-helper.hpp.

Public Types
using	Idx = std::index_sequence< SIZ >
using	Seq = Types< X >
using	Tup = std::tuple< X >
template<template< class > class META>
using	Apply = Types< META< X > >
template<template< typename... > class O>
using	Rebind = O< X >
template<template< class > class PRED>
using	AndAll = std::__and_< PRED< X > >
template<template< class > class PRED>
using	OrAll = std::__or_< PRED< X > >

Static Public Attributes
static constexpr size_t	SIZ = 1

Member Typedef Documentation

Idx

template<class X , typename = void>

using Idx = std::index_sequence<SIZ>

Definition at line 169 of file variadic-helper.hpp.

Seq

template<class X , typename = void>

using Seq = Types<X>

Definition at line 170 of file variadic-helper.hpp.

Tup

template<class X , typename = void>

using Tup = std::tuple<X>

Definition at line 171 of file variadic-helper.hpp.

Apply

template<class X , typename = void>

template<template< class > class META>

using Apply = Types<META<X> >

Definition at line 174 of file variadic-helper.hpp.

Rebind

template<class X , typename = void>

template<template< typename... > class O>

using Rebind = O<X>

Definition at line 176 of file variadic-helper.hpp.

AndAll

template<class X , typename = void>

template<template< class > class PRED>

using AndAll = std::__and_<PRED<X> >

Definition at line 178 of file variadic-helper.hpp.

OrAll

template<class X , typename = void>

template<template< class > class PRED>

using OrAll = std::__or_<PRED<X> >

Definition at line 180 of file variadic-helper.hpp.

Member Data Documentation

SIZ

template<class X , typename = void>

constexpr size_t SIZ = 1

staticconstexpr

Definition at line 168 of file variadic-helper.hpp.

Collaboration diagram for ElmTypes< X, typename >:

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

• variadic-helper.hpp