Namespace
Varianti

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

Da cppreference.com.
< cpp‎ | memory‎ | unique ptr

 
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
Swap, forward and move
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Gestione della memoria dinamica
Basso livello di gestione della memoria
Allocatori
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 inizializzata stoccaggio
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
Puntatori intelligenti
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(deprecato)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage collection supporto
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)
Varie
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)
C Library
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.
 
std :: unique_ptr
Membri funzioni
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=
Modificatori
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
Osservatori
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[]
Non membri funzioni
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
 
template<class T1, class D1, class T2, class D2>
bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
(1) (dal 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) (dal 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) (dal 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) (dal 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) (dal 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) (dal C++11)
template <class T, class D>
bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;
(7) (dal C++11)
template <class T, class D>
bool operator==(nullptr_t, const unique_ptr<T, D>& x) noexcept;
(8) (dal C++11)
template <class T, class D>
bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
(9) (dal C++11)
template <class T, class D>
bool operator!=(nullptr_t, const unique_ptr<T, D>& x) noexcept;
(10) (dal C++11)
template <class T, class D>
bool operator<(const unique_ptr<T, D>& x, nullptr_t);
(11) (dal C++11)
template <class T, class D>
bool operator<(nullptr_t, const unique_ptr<T, D>& y);
(12) (dal C++11)
template <class T, class D>
bool operator<=(const unique_ptr<T, D>& x, nullptr_t);
(13) (dal C++11)
template <class T, class D>
bool operator<=(nullptr_t, const unique_ptr<T, D>& y);
(14) (dal C++11)
template <class T, class D>
bool operator>(const unique_ptr<T, D>& x, nullptr_t);
(15) (dal C++11)
template <class T, class D>
bool operator>(nullptr_t, const unique_ptr<T, D>& y);
(16) (dal C++11)
template <class T, class D>
bool operator>=(const unique_ptr<T, D>& x, nullptr_t);
(17) (dal C++11)
template <class T, class D>
bool operator>=(nullptr_t, const unique_ptr<T, D>& y);
(18) (dal C++11)
Confronta i valori del puntatore di due unique_ptrs, o un unique_ptr e nullptr.
Original:
Compares the pointer values of two unique_ptrs, or a unique_ptr and nullptr.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Indice

[modifica] Parametri

x, y -
unique_ptrs da confrontare
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.

[modifica] Valore di ritorno

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

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

3)
std::less<CT>()(x.get(), y.get()), dove è CT 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
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

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)

[modifica] Esempio

#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';
}

Output:

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

[modifica] Vedi anche

restituisce un puntatore all'oggetto gestito
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.

(metodo pubblico) [modifica]