std::remove_all_extents
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| Defined in header <type_traits>
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| template< class T > struct remove_all_extents; |
(ya que C + +11) | |
Si
T es una matriz multidimensional de algún tipo X, proporciona el miembro typedef type igual a X, de lo contrario es type T .Original:
If
T is a multidimensional array of some type X, provides the member typedef type equal to X, otherwise type is T.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Contenido |
[editar] Tipos de miembros
| Nombre
Original: Name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
type
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el tipo del elemento de
T Original: the type of the element 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] Posible implementación
template<class T> struct remove_all_extents { typedef T type;}; template<class T> struct remove_all_extents<T[]> { typedef typename remove_all_extents<T>::type type; }; template<class Tp, std::size_t N> struct remove_all_extents<T[N]> { typedef typename remove_all_extents<T>::type type; }; |
[editar] Ejemplo
#include <iostream> #include <type_traits> #include <typeinfo> template<class A> void foo(const A&) { typedef typename std::remove_all_extents<A>::type Type; std::cout << "underlying type: " << typeid(Type).name() << '\n'; } int main() { float a1[1][2][3]; int a2[3][2]; float a3[1][1][1][1][2]; double a4[2][3]; foo(a1); foo(a2); foo(a3); foo(a4); }
Output:
underlying type: f underlying type: i underlying type: f underlying type: d
[editar] Ver también
| (C++11) |
Comprueba si un tipo es un tipo de matriz Original: checks if a type is an array type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla) |
| (C++11) |
obtiene el número de dimensiones de un tipo de matriz Original: obtains the number of dimensions of an array type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla) |
| (C++11) |
obtiene el tamaño de un tipo de matriz a lo largo de una dimensión especificada Original: obtains the size of an array type along a specified dimension The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla) |
| (C++11) |
elimina una extensión del tipo de matriz dada Original: removes one extent from the given array type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla) |