NAME¶

std::experimental::simd::size - std::experimental::simd::size

Synopsis¶

static constexpr size_t size() noexcept; (parallelism TS v2)

Returns the width (the number of values) of simd<T, Abi>.

Example¶

The actual output depends on target and compiler flags.

// Run this code

#include <experimental/simd>
#include <cstdint>
#include <iostream>
namespace stdx = std::experimental;

int main()
{
stdx::native_simd<std::int32_t> a = 1;
std::cout << a.size() << '\n';
std::cout << reduce(a) << '\n';
}

Possible output:¶

16
16

See also¶

simd_size obtains the number of elements of a given element type and
(parallelism TS v2) ABI tag
(class template)
size returns the width / number of elements
[static] (parallelism TS (public static member function of
v2) std::experimental::simd_mask<T,Abi>)