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std::experimental::is_abi_tag

From cppreference.com
< cpp‎ | experimental‎ | simd
 
 
Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
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Extensions for concurrency 2 (concurrency TS v2)
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Defined in header <experimental/simd>
template< class T >
struct is_abi_tag;
(parallelism TS v2)

If T is an ABI tag in the simd_abi namespace, provides the member constant value equal true. For any other type, value is false.

Contents

[edit] Template parameters

T - a type to check

[edit] Helper variable template

template< class T >
inline constexpr bool is_abi_tag_v = is_abi_tag<T>::value;
(parallelism TS v2)

Inherited from std::integral_constant

Member constants

value
[static]
true if T is an ABI tag type , false otherwise
(public static member constant)

Member functions

operator bool
converts the object to bool, returns value
(public member function)
operator()
(C++14)
returns value
(public member function)

Member types

Type Definition
value_type bool
type std::integral_constant<bool, value>

[edit] Example

#include <experimental/simd>
#include <iostreams>
 
int main() 
{
    namespace stdx = std::experimental;
    std::cout << stdx::is_abi_tag_v<stdx::simd_abi::scalar> << '\n';
    std::cout << stdx::is_abi_tag_v<int> << '\n';
}

Output:

true
false

[edit] See also

(parallelism TS v2)
checks if a type is a simd flag type
(class template) [edit]