| Template | Comments |
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template <class T> struct remove_extent; | If T names a type “array of U”, the member typedef type shall be U, otherwise T. [ Note: For multidimensional arrays, only the first array dimension is removed. For a type “array of const U”, the resulting type is const U. — end note ] |
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template <class T> struct remove_all_extents; | If T is “multi-dimensional array of U”, the resulting member typedef type is U, otherwise T. |
[Example
// the following assertions hold:
assert((is_same<remove_extent<int>::type, int>::value));
assert((is_same<remove_extent<int[2]>::type, int>::value));
assert((is_same<remove_extent<int[2][3]>::type, int[3]>::value));
assert((is_same<remove_extent<int[][3]>::type, int[3]>::value));
— end example ]
[Example
// the following assertions hold:
assert((is_same<remove_all_extents<int>::type, int>::value));
assert((is_same<remove_all_extents<int[2]>::type, int>::value));
assert((is_same<remove_all_extents<int[2][3]>::type, int>::value));
assert((is_same<remove_all_extents<int[][3]>::type, int>::value));
— end example ]