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std::meta::is_array_type
From cppreference.com
C++
Metaprogramming library
| Type traits (C++11) | ||||
| Compile-time rational arithmetic (C++11) | ||||
| Compile-time integer sequences (C++14) | ||||
(C++14) | ||||
| Compile-time reflection (C++26) |
Reflection library
| Defined in header <meta>
|
||
consteval bool is_array_type( std::meta::info r );
|
(since C++26) | |
Returns true if r represents an array type. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents an array type; otherwise false.
Exceptions
Throws std::meta::exception if r does not represent a type or type alias.
Example
Run this code
#include <array>
#include <meta>
class A {};
static_assert(is_array_type(^^A) == false);
static_assert(is_array_type(^^A[]) == true);
static_assert(is_array_type(^^A[3]) == true);
static_assert(is_array_type(^^float) == false);
static_assert(is_array_type(^^int) == false);
static_assert(is_array_type(^^int[]) == true);
static_assert(is_array_type(^^int[3]) == true);
static_assert(is_array_type(^^std::array<int, 3>) == false);
int main() {}
See also
(C++26) |
checks if reflection represents an array type of known bound (function) [edit] |
(C++26) |
checks if reflection represents an array type of unknown bound (function) [edit] |
(C++26) |
obtains the number of dimensions of reflected array type (function) [edit] |
(C++26) |
obtains the size of reflected array type along a specified dimension (function) [edit] |
(C++26) |
removes one extent from reflected array type (function) [edit] |
(C++26) |
removes all extents from reflected array type (function) [edit] |
(C++26) |
checks if reflected type is a scalar type (function) [edit] |
(C++20) |
checks if a type is an array type of known bound (class template) [edit] |
(C++20) |
checks if a type is an array type of unknown bound (class template) [edit] |
(C++11) |
obtains the number of dimensions of an array type (class template) [edit] |
(C++11) |
obtains the size of an array type along a specified dimension (class template) [edit] |
(C++11) |
removes one extent from the given array type (class template) [edit] |
(C++11) |
removes all extents from the given array type (class template) [edit] |
(C++11) |
checks if a type is an array type (class template) [edit] |