# std::experimental::simd_abi::scalar

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< cpp‎ | experimental‎ | simd

Defined in header `<experimental/simd>` |  |
namespace simd_abi { struct scalar {}; } |  |

The scalar tag type ensures data-parallel types to store a single element (i.e., simd<T, simd_abi::scalar>::size() returns 1).

### Notes

scalar is not an alias to fixed_size<1>.

### See also

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