29 Numerics library [numerics]

29.10 Data-parallel types [simd]

29.10.8 Class template basic_simd_mask [simd.mask.class]

29.10.8.3 basic_simd_mask subscript operator [simd.mask.subscr]

constexpr value_type operator[](simd-size-type i) const;
Preconditions: i >= 0 && i < size() is true.
Returns: The value of the element.
Throws: Nothing.