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std::experimental::simd_size

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< cpp‎ | experimental‎ | simd
 
 
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Defined in header <experimental/simd>
template< class T, class Abi = simd_abi::compatible<T> >
struct simd_size;
(parallelism TS v2)

If T is a vectorizable type and is_abi_tag_v<Abi> is true, provides the member constant value equal to the width (number of elements) of simd<T, Abi>, irrespective of whether simd<T, Abi> is supported or not. For any other types T and Abi, there is no member value.

If the program adds specializations for std::simd_size or std::simd_size_v(since C++17), the behavior is undefined.

Contents

[edit] Helper variable template

template< class T, class Abi = simd_abi::compatible<T> >
inline constexpr std::size_t simd_size_v = simd_size<T, Abi>::value;
(parallelism TS v2)

Inherited from std::integral_constant

Member constants

value
[static]
the width of simd<T, Abi>
(public static member constant)

Member functions

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

Member types

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

[edit] Example

[edit] See also

[static] (parallelism TS v2)
returns the width / number of elements
(public static member function of std::experimental::simd<T,Abi>) [edit]
[static] (parallelism TS v2)
returns the width / number of elements
(public static member function of std::experimental::simd_mask<T,Abi>) [edit]