operator==,!=,<,<=,>,>=(std::unique_ptr)

<metanoindex/>

 

C++

Langage

Concepts

Bibliothèque d'utilitaires

Bibliothèque pour les chaînes de caractères

Bibliothèque de conteneurs

Bibliothèque d'algorithmes

Bibliothèque d'itérateurs

Bibliothèque pour le calcul numérique

Bibliothèque pour les entrées/sorties

Bibliothèque pour la régionalisation

Bibliothèque pour les expressions régulières (C++11)

Bibliothèque pour les opérations atomiques (C++11)

Bibliothèque pour les processus légers (threads) (C++11)

 

Bibliothèque d'utilitaires

Soutien des types fondamentaux (basic types, RTTI, type traits)

Gestion dynamique de la mémoire

Gestion d'erreur

Soutien à l'exécution

Fonctions variadic

Date et heure

Foncteurs

initializer_list (C++11)

bitset

hash (C++11)

Opérateurs relationnels

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

Paires et tuples

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

swap, forward et move

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

La gestion dynamique de la mémoire

Faible niveau de gestion de la mémoire
Répartiteurs Original: Allocators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
allocator
allocator_traits (C++11)
allocator_arg_t (C++11)
allocator_arg (C++11)
uses_allocator (C++11)
scoped_allocator_adaptor (C++11)
Non initialisée stockage Original: Uninitialized storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
uninitialized_copy
uninitialized_copy_n (C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Pointeurs intelligents Original: Smart pointers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
unique_ptr (C++11)
shared_ptr (C++11)
weak_ptr (C++11)
auto_ptr (obsolète)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Soutien garbage collection Original: Garbage collection support The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declare_reachable (C++11)
undeclare_reachable (C++11)
declare_no_pointers (C++11)
undeclare_no_pointers (C++11)
pointer_safety (C++11)
get_pointer_safety (C++11)
Divers Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pointer_traits (C++11)
addressof (C++11)
align (C++11)
Bibliothèque C Original: C Library The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
malloc calloc	realloc free

 

std :: unique_ptr

Les fonctions membres Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

unique_ptr::unique_ptr

unique_ptr::~unique_ptr

unique_ptr::operator=

Modificateurs Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

unique_ptr::release

unique_ptr::reset

unique_ptr::swap

Des observateurs Original: Observers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

unique_ptr::get

unique_ptr::get_deleter

unique_ptr::operator bool

unique_ptr::operator* unique_ptr::operator->

unique_ptr::operator[]

Tiers fonctions Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator== operator!= operator< operator> operator<= operator> operator>=

std::swap

std::hash

 

<tbody> </tbody>

template<class T1, class D1, class T2, class D2> bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(1)	(depuis C++11)
template<class T1, class D1, class T2, class D2> bool operator!=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(2)	(depuis C++11)
template<class T1, class D1, class T2, class D2> bool operator<(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(3)	(depuis C++11)
template<class T1, class D1, class T2, class D2> bool operator<=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(4)	(depuis C++11)
template<class T1, class D1, class T2, class D2> bool operator>(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(5)	(depuis C++11)
template<class T1, class D1, class T2, class D2> bool operator>=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);	(6)	(depuis C++11)
template <class T, class D> bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;	(7)	(depuis C++11)
template <class T, class D> bool operator==(nullptr_t, const unique_ptr<T, D>& x) noexcept;	(8)	(depuis C++11)
template <class T, class D> bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;	(9)	(depuis C++11)
template <class T, class D> bool operator!=(nullptr_t, const unique_ptr<T, D>& x) noexcept;	(10)	(depuis C++11)
template <class T, class D> bool operator<(const unique_ptr<T, D>& x, nullptr_t);	(11)	(depuis C++11)
template <class T, class D> bool operator<(nullptr_t, const unique_ptr<T, D>& y);	(12)	(depuis C++11)
template <class T, class D> bool operator<=(const unique_ptr<T, D>& x, nullptr_t);	(13)	(depuis C++11)
template <class T, class D> bool operator<=(nullptr_t, const unique_ptr<T, D>& y);	(14)	(depuis C++11)
template <class T, class D> bool operator>(const unique_ptr<T, D>& x, nullptr_t);	(15)	(depuis C++11)
template <class T, class D> bool operator>(nullptr_t, const unique_ptr<T, D>& y);	(16)	(depuis C++11)
template <class T, class D> bool operator>=(const unique_ptr<T, D>& x, nullptr_t);	(17)	(depuis C++11)
template <class T, class D> bool operator>=(nullptr_t, const unique_ptr<T, D>& y);	(18)	(depuis C++11)

Compare les valeurs de pointeurs de deux unique_ptrs ou un unique_ptr et nullptr .

Original:

Compares the pointer values of two unique_ptrs, or a unique_ptr and nullptr.

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Paramètres

x, y

-

unique_ptrs à comparer Original: unique_ptrs to compare The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Retourne la valeur

1) x.get() == y.get()

2) x.get() != y.get()

3)

std::less<CT>()(x.get(), y.get()), où CT est std::common_type<unique_ptr<T1, D1>::pointer, unique_ptr<T2, D2>::pointer>::type

Original:

std::less<CT>()(x.get(), y.get()), where CT is std::common_type<unique_ptr<T1, D1>::pointer, unique_ptr<T2, D2>::pointer>::type

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4) !(y < x)

5) y < x

6) !(x < y)

7-8) !x

9-10) (bool)x

11) std::less<unique_ptr<T,D>::pointer>()(x.get(), nullptr)

12) std::less<unique_ptr<T,D>::pointer>()(nullptr, y.get())

13) nullptr < x

14) y < nullptr

15) !(nullptr < x)

16) !(y < nullptr)

17) !(x < nullptr)

18) !(nullptr < y)

Exemple

#include <iostream>
#include <memory>

int main() 
{
    std::unique_ptr<int> p1(new int(42));
    std::unique_ptr<int> p2(new int(42));

    std::cout << "p1 == p1: " << (p1 == p1) << '\n';

    // p1 and p2 point to different memory locations, so p1 != p2
    std::cout << "p1 == p2: " << (p1 == p2) << '\n';
}

Résultat :

p1 == p1: 1
p1 == p2: 0

Voir aussi

get	renvoie un pointeur sur l'objet géré Original: returns a pointer to the managed object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique)