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

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< cpp‎ | experimental‎ | simd‎ | simd
 
 
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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.

[edit] Example

#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