# std::experimental::simd<T,Abi>::copy_to

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< cpp‎ | experimental‎ | simd‎ | simd

template< class U, class Flags > void copy_to( U* mem, Flags flags ); |  | (parallelism TS v2)

The store function copies all elements of a `simd` such that the i-th element is converted to `U` and subsequently written to mem[i] for all i in the range of `[`​0​`,` `size()` `)`.

### Parameters

mem | - | a pointer into an array where `[`mem`,` mem + size()`)` is a valid range
flags | - | if of type `vector_aligned_tag`, the load constructor may assume mem to point to storage aligned by `memory_alignment_v<simd, U>`
Type requirements
- `U` must be a vectorizable type.
- `is_simd_flag_type_v<Flags>` must be true.

### Example

Run this code

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

    int main()
    {
        alignas(stdx::memory_alignment_v<stdx::native_simd<int>>)
            std::array<int, stdx::native_simd<int>::size()> mem = {};

        stdx::native_simd<int> a = 7;
        a.copy_to(&mem[0], stdx::vector_aligned);

        for (int e : mem)
            std::cout << e << ' ';
        std::cout << '\n';
    }

Possible output:

    7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7

### See also

element_aligned_tagelement_aligned (parallelism TS v2) | flag indicating alignment of the load/store address to element alignment (class)
vector_aligned_tagvector_aligned (parallelism TS v2) | flag indicating alignment of the load/store address to vector alignment (class)
overaligned_tagoveraligned (parallelism TS v2) | flag indicating alignment of the load/store address to the specified alignment (class template)
memory_alignment (parallelism TS v2) | obtains an appropriate alignment for `vector_aligned` (class template)
copy_from (parallelism TS v2) | loads `simd` elements from contiguous memory (public member function)

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