std::meta::remove_all_extents

 

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Const-volatile modifications remove_const remove_volatile remove_cv add_const add_volatile add_cv Reference modifications remove_reference add_lvalue_reference add_rvalue_reference Sign modifications make_signed make_unsigned Array modifications remove_extent remove_all_extents Pointer modifications remove_pointer add_pointer Other transformations remove_cvref decay common_type common_reference underlying_type invoke_result unwrap_reference unwrap_ref_decay tuple_size tuple_element is_applicable_type is_nothrow_applicable_type apply_result variant_size variant_alternative type_order

 

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Defined in header <meta>
consteval std::meta::info remove_all_extents( std::meta::info r );		(since C++26)

If a type T, represented by r, is a multidimensional array of some type X, returns a reflection of X. Otherwise returns r.

Equivalent to return std::meta::dealias(^^std::remove_all_extents_t<T>);.

Parameters

r

-

a reflection value

Return value

A reflection of an underlying type, if reflected type is a multidimensional array. Otherwise, r.

Exceptions

Throws std::meta::exception if r does not represent a type or type alias.

Example

Run this code

#include <meta>

struct X;

static_assert
(""
    && (remove_all_extents(^^int) == ^^int)
    && (remove_all_extents(^^int[1]) == ^^int)
    && (remove_all_extents(^^int[1][2]) == ^^int)
    && (remove_all_extents(^^float) == ^^float)
    && (remove_all_extents(^^float[1]) == ^^float)
    && (remove_all_extents(^^float[1][2]) == ^^float)
    && (remove_all_extents(^^const float[1][2]) == ^^const float)
    && (remove_all_extents(^^float*) == ^^float*)
    && (remove_all_extents(^^X) == ^^X)
    && (remove_all_extents(^^X[1][2]) == ^^X)
);

int main() {}

See also

is_array_type (C++26)	checks if reflected type is an array type (function)
rank (C++26)	obtains the number of dimensions of reflected array type (function)
extent (C++26)	obtains the size of reflected array type along a specified dimension (function)
remove_extent (C++26)	removes one extent from reflected array type (function)
remove_all_extents (C++11)	removes all extents from the given array type (class template)