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std::experimental::simd<T,Abi>::operator!,~,+,-

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< cpp‎ | experimental‎ | simd‎ | simd
 
 
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mask_type operator!() const noexcept;
(1) (parallelism TS v2)
simd operator~() const noexcept;
(2) (parallelism TS v2)
simd operator+() const noexcept;
(3) (parallelism TS v2)
simd operator-() const noexcept;
(4) (parallelism TS v2)

Applies the given unary operator on each element of the simd.

1) Returns a simd_mask<T, Abi> where the ith element equals !operator[](i) for all i in the range of [0size()).
2) Returns a simd where each bit is the inverse of the corresponding bit in *this. This overload participates in overload resolution only if T is an integral type.
3) Returns a copy of itself.
4) Returns a simd where the ith element is initialized to -operator[](i) for all i in the range of [0size()).

[edit] Example

#include <cstddef>
#include <experimental/simd>
#include <iostream>
#include <string_view>
namespace stdx = std::experimental;
 
void println(std::string_view op, const stdx::native_simd_mask<int> x)
{
    std::cout << op << ": ";
    for (std::size_t i = 0; i < x.size(); ++i)
        std::cout << std::boolalpha << x[i] << ' ';
    std::cout << '\n';
}
 
void println(std::string_view op, const stdx::native_simd<int> x)
{
    std::cout << op << ": ";
    for (std::size_t i = 0; i < x.size(); ++i)
        std::cout << x[i] << ' ';
    std::cout << '\n';
}
 
int main()
{
    const stdx::native_simd<int> a([](int i) { return i; });
 
    println("  a", a);
    println(" !a", !a);
    println(" ~a", ~a);
    println("~~a", ~~a);
    println(" +a", +a);
    println(" -a", -a);
    println("+-a", +-a);
}

Possible output:

  a: 0 1 2 3 
 !a: true false false false 
 ~a: -1 -2 -3 -4 
~~a: 0 1 2 3 
 +a: 0 1 2 3 
 -a: 0 -1 -2 -3 
+-a: 0 -1 -2 -3