Espacios de nombres
Variantes
Acciones

std::make_shared

De cppreference.com
< cpp‎ | memory‎ | shared 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
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Pares y tuplas
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.
(C++11)
Cambiar, hacia adelante y mover
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.
(C++11)
(C++11)
(C++11)
 
Gestión de memoria dinámica
Bajo la gestión de memoria de nivel
Los asignadores
Original:
Allocators
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Inicializar el almacenamiento
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.
Punteros inteligentes
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.
(C++11)
(C++11)
(C++11)
(obsoleto)
(C++11)
Garbage soporte colección
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.
Varios
Original:
Miscellaneous
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(C++11)
(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::shared_ptr
Las funciones miembro
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.
Modificadores
Original:
Modifiers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Los observadores
Original:
Observers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Terceros funciones
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.
make_shared
 
Definido en la cabecera <memory>
template< class T, class... Args >
shared_ptr<T> make_shared( Args... args );
Construye un objeto de tipo T y lo envuelve en una std::shared_ptr utilizando args como la lista de parámetros del constructor de T .
Original:
Constructs an object of type T and wraps it in a std::shared_ptr using args as the parameter list for the constructor of T.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Contenido

[editar] Parámetros

args -
lista de argumentos con los que va a ser una instancia de T construidos .
Original:
list of arguments with which an instance of T will be constructed.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Valor de retorno

std::shared_ptr de una instancia de tipo T .
Original:
std::shared_ptr of an instance of type T.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Excepciones

Puede lanzar std::bad_alloc o cualquier excepción lanzada por el contructor de T .
Original:
May throw std::bad_alloc or any exception thrown by the contructor of T.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Notas

Esta función asigna memoria para el objeto T y para el bloque de control de la shared_ptr con una asignación de memoria. En contraste, la declaración std::shared_ptr<T> p(new T(Args...)) realiza dos asignaciones de memoria, que puede incurrir en una sobrecarga innecesaria .
Original:
This function allocates memory for the T object and for the shared_ptr's control block with a single memory allocation. In contrast, the declaration std::shared_ptr<T> p(new T(Args...)) performs two memory allocations, which may incur unnecessary overhead.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Ejemplo

#include <iostream>
#include <memory>
 
void foo(std::shared_ptr<int> i)
{
    (*i)++;
}
 
int main()
{
    auto sp = std::make_shared<int>(10);
    foo(sp);
    std::cout << *sp << std::endl;
}

Salida:

11

[editar] Ver también

constructs new shared_ptr
(función miembro público) [editar]
crea un puntero compartido que gestiona un nuevo objeto asignado usando un asignador
Original:
creates a shared pointer that manages a new object allocated using an allocator
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(plantilla de función) [editar]