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

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C++
Experimental
Extensions for parallelism v2
SIMD library
std::experimental::simd
simd & operator ++ ( ) noexcept ;
(1) (parallelism TS v2)
simd operator ++ ( int ) noexcept ;
(2) (parallelism TS v2)
simd & operator -- ( ) noexcept ;
(3) (parallelism TS v2)
simd operator -- ( int ) noexcept ;
(4) (parallelism TS v2)

Applies the increment or decrement operator on each element of the simd .

1) Increments all values in the simd by 1 and returns a reference to itself.
2) Increments all values in the simd by 1 and returns a copy of itself before the operation.
3) Decrements all values in the simd by 1 and returns a reference to itself.
4) Decrements all values in the simd by 1 and returns a copy of itself before the operation.

Example

Run this code 
#include <cstddef>
#include <experimental/simd>
#include <iostream>
namespace stdx = std::experimental;
 
void print(auto rem, auto const& a)
{
    std::cout << rem << ": ";
    for (std::size_t i{}; i != std::size(a); ++i)
        std::cout << a[i] << ' ';
    std::cout << '\n';
}
 
int main()
{
    stdx::native_simd<int> p = -2;
    print('p', p);
 
    ++p;
    print('p', p);
 
    auto q = p--;
    print('p', p);
    print('q', q);
}

Possible output: 

p: -2 -2 -2 -2
p: -1 -1 -1 -1 
p: -2 -2 -2 -2
q: -1 -1 -1 -1
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