libstdc++
Modules | Classes | Typedefs | Functions | Variables
Utilities
Collaboration diagram for Utilities:

Modules

 Function Objects
 
 Memory
 
 Metaprogramming
 
 Rational Arithmetic
 
 Time
 

Classes

struct  std::_Tuple_impl< _Idx, _Elements >
 
struct  std::_Tuple_impl< _Idx >
 
struct  std::_Tuple_impl< _Idx, _Head, _Tail...>
 
struct  std::pair< _T1, _T2 >
 
struct  std::piecewise_construct_t
 
class  std::tuple< _Elements >
 
class  std::tuple< _T1, _T2 >
 
class  std::tuple_element< _Int, _Tp >
 
struct  std::tuple_element< 0, tuple< _Head, _Tail...> >
 
struct  std::tuple_element< __i, tuple< _Head, _Tail...> >
 
class  std::tuple_size< _Tp >
 
struct  std::tuple_size< tuple< _Elements...> >
 
struct  std::type_index
 
struct  std::uses_allocator< tuple< _Types...>, _Alloc >
 

Typedefs

template<typename _Tp >
using std::__empty_not_final = typename conditional< __is_final(_Tp), false_type, __is_empty_non_tuple< _Tp >>::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<std::size_t __i, typename _Head , typename... _Tail>
constexpr __add_ref< _Head >::type std::__get_helper (_Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
 
template<std::size_t __i, typename _Head , typename... _Tail>
constexpr __add_c_ref< _Head >
::type 		std::__get_helper (const _Tuple_impl< __i, _Head, _Tail...> &__t) noexcept
 
template<typename _Tp >
_Tp * std::addressof (_Tp &__r) noexcept
 
template<typename _Tp >
add_rvalue_reference< _Tp >::type std::declval () 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 __add_ref< typename
tuple_element< __i, tuple
< _Elements...> >::type >
::type 		std::get (tuple< _Elements...> &__t) noexcept
 
template<std::size_t __i, typename... _Elements>
constexpr __add_c_ref
< typename tuple_element< __i,
tuple< _Elements...> >::type >
::type 		std::get (const tuple< _Elements...> &__t) noexcept
 
template<std::size_t __i, typename... _Elements>
constexpr __add_r_ref
< typename tuple_element< __i,
tuple< _Elements...> >::type >
::type 		std::get (tuple< _Elements...> &&__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 >,is_nothrow_move_assignable< _Tp >>::value)
 
template<typename _Tp , size_t _Nm>
void std::swap (_Tp(&__a)[_Nm], _Tp(&__b)[_Nm]) noexcept(noexcept(swap(*__a,*__b)))
 
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...>::__type
 

Variables

const _Swallow_assign std::ignore
 
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)
inlinenoexcept

Same as C++11 std::addressof.

Definition at line 47 of file move.h.

Referenced by std::_Destroy(), std::addressof(), std::begin(), std::vector< _State >::data(), std::end(), std::forward_list< _Tp, _Alloc >::remove(), and std::list< _Tp, _Alloc >::remove().

template<typename _Tp >
_Tp* std::addressof ( _Tp &  __r)
inlinenoexcept

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 >
add_rvalue_reference< _Tp >::type std::declval ( )
inlinenoexcept

Utility to simplify expressions used in unevaluated operands.

Definition at line 1869 of file type_traits.

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

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)
noexcept

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<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 
)

A convenience wrapper for creating a pair from two objects.

Parameters
__xThe first object.
__yThe second object.
Returns
A newly-constructed pair<> object of the appropriate type.

The standard requires that the objects be passed by reference-to-const, but LWG issue #181 says they should be passed by const value. We follow the LWG by default.

Definition at line 276 of file stl_pair.h.

Referenced by __gnu_parallel::__find_template(), __gnu_debug::__get_distance(), __gnu_parallel::__parallel_merge_advance(), __gnu_parallel::__parallel_sort_qsb(), __gnu_parallel::__qsb_local_sort_with_helping(), __gnu_parallel::__find_if_selector::_M_sequential_algorithm(), __gnu_parallel::__adjacent_find_selector::_M_sequential_algorithm(), __gnu_parallel::__find_first_of_selector< _FIterator >::_M_sequential_algorithm(), std::minmax_element(), __gnu_parallel::multiseq_partition(), __gnu_parallel::multiseq_selection(), __gnu_parallel::parallel_multiway_merge(), __gnu_parallel::parallel_sort_mwms_pu(), and __gnu_pbds::detail::pat_trie_base::_Node_citer< Node, Leaf, Head, Inode, _CIterator, Iterator, _Alloc >::valid_prefix().

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

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)
inlinenoexcept

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

http://gcc.gnu.org/onlinedocs/libstdc++/manual/utilities.html

Definition at line 220 of file stl_pair.h.

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

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 
)
inlinenoexcept

See std::pair::swap().

Definition at line 254 of file stl_pair.h.

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

Swaps two values.

Parameters
__aA thing of arbitrary type.
__bAnother thing of arbitrary type.
Returns
Nothing.

Definition at line 166 of file move.h.

template<typename _Tp , size_t _Nm>
void std::swap ( _Tp(&)  __a[_Nm],
_Tp(&)  __b[_Nm] 
)
inlinenoexcept

Swap the contents of two arrays.

Definition at line 185 of file move.h.

template<typename... _Elements>
void std::swap ( tuple< _Elements...> &  __x,
tuple< _Elements...> &  __y 
)
inlinenoexcept

swap

Definition at line 1048 of file tuple.

template<typename... _Elements>
tuple<_Elements&...> std::tie ( _Elements &...  __args)
inlinenoexcept

tie

Definition at line 1042 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) -> typename __tuple_cat_result<_Tpls...>::__type

tuple_cat

Definition at line 1030 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[]().