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

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< cpp‎ | memory‎ | unique ptr

 
 
Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
(C++11)
Operadores relacionales
Original:
Relational operators
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Pares y tuplas
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Pairs and tuples
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(C++11)
Cambiar, hacia adelante y mover
Original:
Swap, forward and move
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(C++11)
(C++11)
(C++11)
 
Gestión de memoria dinámica
Bajo la gestión de memoria de nivel
Los asignadores
Original:
Allocators
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Inicializar el almacenamiento
Original:
Uninitialized storage
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Punteros inteligentes
Original:
Smart pointers
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(C++11)
(C++11)
(C++11)
(obsoleto)
(C++11)
Garbage soporte colección
Original:
Garbage collection support
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Varios
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Miscellaneous
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(C++11)
(C++11)
C Library
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C Library
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std :: unique_ptr
Las funciones miembro
Original:
Member functions
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Modificadores
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Modifiers
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Los observadores
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Observers
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Terceros funciones
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Non-member functions
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operator==operator!=operator<operator>operator<=operator>operator>=
 
template<class T1, class D1, class T2, class D2>
bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
(1) (desde 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) (desde 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) (desde 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) (desde 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) (desde 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) (desde C++11)
template <class T, class D>
bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;
(7) (desde C++11)
template <class T, class D>
bool operator==(nullptr_t, const unique_ptr<T, D>& x) noexcept;
(8) (desde C++11)
template <class T, class D>
bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
(9) (desde C++11)
template <class T, class D>
bool operator!=(nullptr_t, const unique_ptr<T, D>& x) noexcept;
(10) (desde C++11)
template <class T, class D>
bool operator<(const unique_ptr<T, D>& x, nullptr_t);
(11) (desde C++11)
template <class T, class D>
bool operator<(nullptr_t, const unique_ptr<T, D>& y);
(12) (desde C++11)
template <class T, class D>
bool operator<=(const unique_ptr<T, D>& x, nullptr_t);
(13) (desde C++11)
template <class T, class D>
bool operator<=(nullptr_t, const unique_ptr<T, D>& y);
(14) (desde C++11)
template <class T, class D>
bool operator>(const unique_ptr<T, D>& x, nullptr_t);
(15) (desde C++11)
template <class T, class D>
bool operator>(nullptr_t, const unique_ptr<T, D>& y);
(16) (desde C++11)
template <class T, class D>
bool operator>=(const unique_ptr<T, D>& x, nullptr_t);
(17) (desde C++11)
template <class T, class D>
bool operator>=(nullptr_t, const unique_ptr<T, D>& y);
(18) (desde C++11)
Compara los valores del puntero de dos unique_ptrs o un unique_ptr y nullptr .
Original:
Compares the pointer values of two unique_ptrs, or a unique_ptr and nullptr.
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Contenido

[editar] Parámetros

x, y -
unique_ptrs para comparar
Original:
unique_ptrs to compare
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[editar] Valor de retorno

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

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

3)
std::less<CT>()(x.get(), y.get()), donde CT es 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)

[editar] Ejemplo

#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';
}

Salida:

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

[editar] Ver también

devuelve un puntero al objeto gestionado
Original:
returns a pointer to the managed object
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(función miembro público) [editar]