std::remove_extent - cppreference.com (original) (raw)

| | | | | ------------------------------------------- | | ------------- | | template< class T > struct remove_extent; | | (since C++11) |

If T is an array of some type X, provides the member typedef type equal to X, otherwise type is T. Note that if T is a multidimensional array, only the first dimension is removed.

If the program adds specializations for std::remove_extent, the behavior is undefined.

[edit] Member types

[edit] Helper types

| template< class T > using remove_extent_t = typename remove_extent<T>::type; | | (since C++14) | | ---------------------------------------------------------------------------------- | | ------------- |

[edit] Possible implementation

template struct remove_extent { using type = T; };   template struct remove_extent<T[]> { using type = T; };   template<class T, std::size_t N> struct remove_extent<T[N]> { using type = T; };

[edit] Example

[edit] See also

| | checks if a type is an array type (class template) [edit] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | obtains the number of dimensions of an array type (class template) [edit] | | | obtains the size of an array type along a specified dimension (class template) [edit] | | | removes all extents from the given array type (class template) [edit] |