dual.md

sd::dual<T>

Defined in header <simdee/simd_vectors/dual.hpp>

sd::dual is a class template that creates a new vector based on an existing type T that satisfies SIMDVector.

• The width of the new vector is doubled, i.e. sd::dual<T>::width == 2 * T::width.
• sd::dual<T> satisfies SIMDVector.
• If T satisfies one of the concepts SIMDVectorB, SIMDVectorF, SIMDVectorU, SIMDVectorS, then sd::dual<T> satisfies it as well.

Performance considerations

• The implementation of reduce(x) is not effective for repeatedly nested types, e.g. when x has type sd::dual<sd::dual<sd::dumf>>.
• Expression templates deferred_bitnot and deferred_lognot are not employed by sd::dual<T> even if T uses them.