29 Numerics library [numerics]

29.10 Data-parallel types [simd]

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

29.10.10.5 Reductions [simd.mask.reductions]

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template<size_t Bytes, class Abi> constexpr bool all_of(const basic_mask<Bytes, Abi>& k) noexcept;
1
#
Returns: true if all boolean elements in k are true, otherwise false.
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template<size_t Bytes, class Abi> constexpr bool any_of(const basic_mask<Bytes, Abi>& k) noexcept;
2
#
Returns: true if at least one boolean element in k is true, otherwise false.
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template<size_t Bytes, class Abi> constexpr bool none_of(const basic_mask<Bytes, Abi>& k) noexcept;
3
#
Returns: !any_of(k).
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template<size_t Bytes, class Abi> constexpr simd-size-type reduce_count(const basic_mask<Bytes, Abi>& k) noexcept;
4
#
Returns: The number of boolean elements in k that are true.
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template<size_t Bytes, class Abi> constexpr simd-size-type reduce_min_index(const basic_mask<Bytes, Abi>& k);
5
#
Preconditions: any_of(k) is true.
6
#
Returns: The lowest element index i where k[i] is true.
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template<size_t Bytes, class Abi> constexpr simd-size-type reduce_max_index(const basic_mask<Bytes, Abi>& k);
7
#
Preconditions: any_of(k) is true.
8
#
Returns: The greatest element index i where k[i] is true.
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constexpr bool all_of(same_as<bool> auto x) noexcept; constexpr bool any_of(same_as<bool> auto x) noexcept; constexpr simd-size-type reduce_count(same_as<bool> auto x) noexcept;
9
#
Returns: x.
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constexpr bool none_of(same_as<bool> auto x) noexcept;
10
#
Returns: !x.
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constexpr simd-size-type reduce_min_index(same_as<bool> auto x); constexpr simd-size-type reduce_max_index(same_as<bool> auto x);
11
#
Preconditions: x is true.
12
#
Returns: 0.