libstdc++
Utilities
Collaboration diagram for Utilities:

Classes

struct  std::_Tuple_impl< _Idx, _Head, _Tail...>
class  std::bitset< _Nb >
 The bitset class represents a fixed-size sequence of bits.(Note that bitset does not meet the formal requirements of a container. Mainly, it lacks iterators.) More...
struct  std::pair< _T1, _T2 >
 Struct holding two objects of arbitrary type. More...
struct  std::piecewise_construct_t
 piecewise_construct_t More...
class  std::tuple< _Elements >
 Primary class template, tuple. More...
class  std::tuple< _T1, _T2 >
 Partial specialization, 2-element tuple. Includes construction and assignment from a pair. More...
struct  std::tuple_element< 0, tuple< _Head, _Tail...> >
struct  std::tuple_element< __i, tuple< _Head, _Tail...> >
struct  std::tuple_size< tuple< _Elements...> >
 class tuple_size More...
struct  std::type_index
 Class type_indexThe class type_index provides a simple wrapper for type_info which can be used as an index type in associative containers (23.6) and in unordered associative containers (23.7). More...
struct  std::uses_allocator< tuple< _Types...>, _Alloc >
 Partial specialization for tuples. More...

Modules

 Time
 Memory
 Rational Arithmetic
 Metaprogramming
 Function Objects

Defines

#define __cpp_lib_tuple_element_t
#define __cpp_lib_tuples_by_type

Functions

template<typename... _Args1, typename... _Args2>
 std::pair< _T1, _T2 >::pair (piecewise_construct_t, tuple< _Args1...>, tuple< _Args2...>)
template<typename _Tp >
_Tp * std::__addressof (_Tp &__r) noexcept
template<typename _Tp , typename _Up = _Tp>
_Tp std::__exchange (_Tp &__obj, _Up &&__new_val)
template<std::size_t __i, typename _Head , typename... _Tail>
constexpr _Head & std::__get_helper (_Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
template<std::size_t __i, typename _Head , typename... _Tail>
constexpr const _Head & std::__get_helper (const _Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
template<typename _Head , size_t __i, typename... _Tail>
constexpr _Head & std::__get_helper2 (_Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
template<typename _Head , size_t __i, typename... _Tail>
constexpr const _Head & std::__get_helper2 (const _Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
template<typename _Tp >
_Tp * std::addressof (_Tp &__r) noexcept
template<typename _Tp >
constexpr _Tp && std::forward (typename std::remove_reference< _Tp >::type &__t) noexcept
template<typename _Tp >
constexpr _Tp && std::forward (typename std::remove_reference< _Tp >::type &&__t) noexcept
template<typename... _Elements>
tuple< _Elements &&...> std::forward_as_tuple (_Elements &&...__args) noexcept
template<std::size_t __i, typename... _Elements>
constexpr __tuple_element_t
< __i, tuple< _Elements...> > & 
std::get (tuple< _Elements...> &__t) noexcept
template<std::size_t __i, typename... _Elements>
constexpr const
__tuple_element_t< __i, tuple
< _Elements...> > & 
std::get (const tuple< _Elements...> &__t) noexcept
template<std::size_t __i, typename... _Elements>
constexpr __tuple_element_t
< __i, tuple< _Elements...> > && 
std::get (tuple< _Elements...> &&__t) noexcept
template<typename _Tp , typename... _Types>
constexpr _Tp & std::get (tuple< _Types...> &__t) noexcept
template<typename _Tp , typename... _Types>
constexpr _Tp && std::get (tuple< _Types...> &&__t) noexcept
template<typename _Tp , typename... _Types>
constexpr const _Tp & std::get (const tuple< _Types...> &__t) noexcept
template<class _T1 , class _T2 >
constexpr pair< typename
__decay_and_strip< _T1 >
::__type, typename
__decay_and_strip< _T2 >
::__type > 
std::make_pair (_T1 &&__x, _T2 &&__y)
template<typename... _Elements>
constexpr tuple< typename
__decay_and_strip< _Elements >
::__type...> 
std::make_tuple (_Elements &&...__args)
template<typename _Tp >
constexpr
std::remove_reference< _Tp >
::type && 
std::move (_Tp &&__t) noexcept
template<typename _Tp >
constexpr conditional
< __move_if_noexcept_cond< _Tp >
::value, const _Tp &, _Tp && >
::type 
std::move_if_noexcept (_Tp &__x) noexcept
template<class _T1 , class _T2 >
constexpr bool std::operator!= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator!= (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
constexpr bool std::operator< (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator< (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
constexpr bool std::operator<= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator<= (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
constexpr bool std::operator== (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator== (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
constexpr bool std::operator> (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator> (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
constexpr bool std::operator>= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename... _TElements, typename... _UElements>
constexpr bool std::operator>= (const tuple< _TElements...> &__t, const tuple< _UElements...> &__u)
template<class _T1 , class _T2 >
void std::swap (pair< _T1, _T2 > &__x, pair< _T1, _T2 > &__y) noexcept(noexcept(__x.swap(__y)))
template<typename _Tp >
void std::swap (_Tp &__a, _Tp &__b) noexcept(__and_< is_nothrow_move_constructible< _Tp >
template<typename _Tp , size_t _Nm>
void std::swap (_Tp(&__a)[_Nm], _Tp(&__b)[_Nm]) noexcept(noexcept(swap(*__a
template<typename... _Elements>
void std::swap (tuple< _Elements...> &__x, tuple< _Elements...> &__y) noexcept(noexcept(__x.swap(__y)))
template<typename... _Elements>
tuple< _Elements &...> std::tie (_Elements &...__args) noexcept
template<typename... _Tpls, typename = typename enable_if<__and_<__is_tuple_like<_Tpls>...>::value>::type>
constexpr auto std::tuple_cat (_Tpls &&...__tpls)-> typename __tuple_cat_result< _Tpls...>

Variables

constexpr piecewise_construct_t std::piecewise_construct

Detailed Description

Components deemed generally useful. Includes pair, tuple, forward/move helpers, ratio, function object, metaprogramming and type traits, time, date, and memory functions.


Function Documentation

template<typename _Tp >
_Tp* std::addressof ( _Tp &  __r) [inline]

Returns the actual address of the object or function referenced by r, even in the presence of an overloaded operator&.

Parameters:
__rReference to an object or function.
Returns:
The actual address.

Definition at line 135 of file move.h.

References std::__addressof().

Referenced by std::pointer_traits< _Tp * >::pointer_to().

template<typename _Tp >
constexpr _Tp&& std::forward ( typename std::remove_reference< _Tp >::type &  __t)

Forward an lvalue.

Returns:
The parameter cast to the specified type.

This function is used to implement "perfect forwarding".

Definition at line 76 of file move.h.

template<typename _Tp >
constexpr _Tp&& std::forward ( typename std::remove_reference< _Tp >::type &&  __t)

Forward an rvalue.

Returns:
The parameter cast to the specified type.

This function is used to implement "perfect forwarding".

Definition at line 87 of file move.h.

template<std::size_t __i, typename... _Elements>
constexpr __tuple_element_t<__i, tuple<_Elements...> >& std::get ( tuple< _Elements...> &  __t)

Return a reference to the ith element of a tuple.

Definition at line 832 of file tuple.

template<std::size_t __i, typename... _Elements>
constexpr const __tuple_element_t<__i, tuple<_Elements...> >& std::get ( const tuple< _Elements...> &  __t)

Return a const reference to the ith element of a const tuple.

Definition at line 838 of file tuple.

template<std::size_t __i, typename... _Elements>
constexpr __tuple_element_t<__i, tuple<_Elements...> >&& std::get ( tuple< _Elements...> &&  __t)

Return an rvalue reference to the ith element of a tuple rvalue.

Definition at line 844 of file tuple.

template<typename _Tp , typename... _Types>
constexpr _Tp& std::get ( tuple< _Types...> &  __t)

Return a reference to the unique element of type _Tp of a tuple.

Definition at line 867 of file tuple.

template<typename _Tp , typename... _Types>
constexpr _Tp&& std::get ( tuple< _Types...> &&  __t)

Return a reference to the unique element of type _Tp of a tuple rvalue.

Definition at line 873 of file tuple.

template<typename _Tp , typename... _Types>
constexpr const _Tp& std::get ( const tuple< _Types...> &  __t)

Return a const reference to the unique element of type _Tp of a tuple.

Definition at line 879 of file tuple.

template<class _T1 , class _T2 >
constexpr pair<typename __decay_and_strip<_T1>::__type, typename __decay_and_strip<_T2>::__type> std::make_pair ( _T1 &&  __x,
_T2 &&  __y 
)
template<typename _Tp >
constexpr std::remove_reference<_Tp>::type&& std::move ( _Tp &&  __t)

Convert a value to an rvalue.

Parameters:
__tA thing of arbitrary type.
Returns:
The parameter cast to an rvalue-reference to allow moving it.

Definition at line 101 of file move.h.

template<typename _Tp >
constexpr conditional<__move_if_noexcept_cond<_Tp>::value, const _Tp&, _Tp&&>::type std::move_if_noexcept ( _Tp &  __x)

Conditionally convert a value to an rvalue.

Parameters:
__xA thing of arbitrary type.
Returns:
The parameter, possibly cast to an rvalue-reference.

Same as std::move unless the type's move constructor could throw and the type is copyable, in which case an lvalue-reference is returned instead.

Definition at line 121 of file move.h.

template<class _T1 , class _T2 >
constexpr bool std::operator!= ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]

Uses operator== to find the result.

Definition at line 227 of file stl_pair.h.

template<class _T1 , class _T2 >
constexpr bool std::operator< ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]
template<class _T1 , class _T2 >
constexpr bool std::operator<= ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]

Uses operator< to find the result.

Definition at line 239 of file stl_pair.h.

template<class _T1 , class _T2 >
constexpr bool std::operator== ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]

Two pairs of the same type are equal iff their members are equal.

Definition at line 214 of file stl_pair.h.

References std::pair< _T1, _T2 >::first, and std::pair< _T1, _T2 >::second.

template<class _T1 , class _T2 >
constexpr bool std::operator> ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]

Uses operator< to find the result.

Definition at line 233 of file stl_pair.h.

template<class _T1 , class _T2 >
constexpr bool std::operator>= ( const pair< _T1, _T2 > &  __x,
const pair< _T1, _T2 > &  __y 
) [inline]

Uses operator< to find the result.

Definition at line 245 of file stl_pair.h.

template<class _T1 , class _T2 >
void std::swap ( pair< _T1, _T2 > &  __x,
pair< _T1, _T2 > &  __y 
) [inline]

See std::pair::swap().

Definition at line 254 of file stl_pair.h.

template<typename _Tp >
void std::swap ( _Tp &  __a,
_Tp &  __b 
) const [inline]

Swaps two values.

Parameters:
__aA thing of arbitrary type.
__bAnother thing of arbitrary type.
Returns:
Nothing.
template<typename... _Elements>
void std::swap ( tuple< _Elements...> &  __x,
tuple< _Elements...> &  __y 
) [inline]

swap

Definition at line 1132 of file tuple.

template<typename... _Elements>
tuple<_Elements&...> std::tie ( _Elements &...  __args) [inline]

tie

Definition at line 1126 of file tuple.

Referenced by std::basic_ios< _CharT, _Traits >::copyfmt(), std::lock(), and std::try_lock().

template<typename... _Tpls, typename = typename enable_if<__and_<__is_tuple_like<_Tpls>...>::value>::type>
constexpr auto std::tuple_cat ( _Tpls &&...  __tpls)

tuple_cat

Definition at line 1114 of file tuple.


Variable Documentation

constexpr piecewise_construct_t std::piecewise_construct

piecewise_construct

Definition at line 79 of file stl_pair.h.

Referenced by std::map< _Key, _Tp, _Compare, _Alloc >::operator[]().