cppdraft_translate/cppdraft/simd/mask/cond.md

[simd.mask.cond]

29 Numerics library [numerics]

29.10 Data-parallel types [simd]

29.10.10 basic_mask non-member operations [simd.mask.nonmembers]

29.10.10.4 basic_mask exposition only conditional operators [simd.mask.cond]

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friend constexpr basic_mask simd-select-impl( const basic_mask& mask, const basic_mask& a, const basic_mask& b) noexcept;

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Returns: A basic_mask object where the ith element equalsmask[i] ? a[i] : b[i] for all i in the range of [0, size()).

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friend constexpr basic_mask simd-select-impl(const basic_mask& mask, [same_as](concept.same#concept:same_as "18.4.2 Concept same_­as [concept.same]")<bool> auto a, [same_as](concept.same#concept:same_as "18.4.2 Concept same_­as [concept.same]")<bool> auto b) noexcept;

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Returns: A basic_mask object where the ith element equalsmask[i] ? a : b for all i in the range of [0, size()).

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template<class T0, class T1> friend constexpr vec<see below, size()> simd-select-impl(const basic_mask& mask, const T0& a, const T1& b) noexcept;

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Constraints:

• (3.1)

same_as<T0, T1> is true,

• (3.2)

T0 is a vectorizable type, and

• (3.3)

sizeof(T0) == Bytes.

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Returns: A vec<T0, size()> object where the ith element equalsmask[i] ? a : b for all i in the range of [0, size()).