std::experimental::simd_mask<T,Abi>::size

 

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std::experimental::simd_mask

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simd_mask size	copy_from      copy_to	operator[] operator!
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operator==operator!=      operator&&operator||	operator&operator|operator^	operator&=operator|=operator^=

 

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

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

Example

The actual output depends on target and compiler flags.

Run this code

#include <experimental/simd>
#include <iostream>
namespace stdx = std::experimental;
 
int main()
{
    stdx::native_simd_mask<int> a { true };
    std::cout << a.size() << '\n';
    std::cout << popcount(a) << '\n';
}

Possible output:

16
16

See also

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