std::experimental::where (3) Linux Manual Page

std::experimental::where – std::experimental::where

Synopsis

Defined in header<experimental / simd>

    template <class T, class Abi>

    where_expression<simd_mask<T, Abi>, simd<T, Abi>>(1)

        where(const typename simd<T, Abi>::mask_type &mask,

              simd<T, Abi> &value) noexcept;

template <class T, class Abi>

const_where_expression<simd_mask<T, Abi>, const simd<T, Abi>>(2)

    where(const typename simd<T, Abi>::mask_type &mask,

          const simd<T, Abi> &value) noexcept;

template <class T, class Abi>

where_expression<simd_mask<T, Abi>, simd_mask<T, Abi>>(3)

    where(const nodeduce_t<simd_mask<T, Abi>> &mask,

          simd_mask<T, Abi> &value) noexcept;

template <class T, class Abi>

const_where_expression<simd_mask<T, Abi>, const simd_mask<T, Abi>>(4)

    where(const nodeduce_t<simd_mask<T, Abi>> &mask,

          const simd_mask<T, Abi> &value) noexcept;

template <class T>

where_expression<bool, T>(5)

    where(/*see below*/ mask, T &value) noexcept;

template <class T>

const_where_expression<bool, const T>(6)

    where(/*see below*/ mask, const T &value) noexcept;

Constructs a new const_where_expression or where_expression.
1-6) constructs a where_expression from given mask and value parameters.

Parameters

1-4)

mask – the simd_mask object
value – reference to the object that mask applies on

5-6)

mask – the mask of type bool
value – reference to the scalar that mask applies on

Return value

The constructed const_where_expression or where_expression.

Notes

5-6) uses implementation defined type of mask, so that implicit conversions from other types to bool is disabled.

Example