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std::experimental::split

From cppreference.com
< cpp‎ | experimental‎ | simd
 
 
Technical specifications
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Extensions for concurrency 2 (concurrency TS v2)
Concepts (concepts TS)
Ranges (ranges TS)
Reflection (reflection TS)
Mathematical special functions (special functions TR)
 
 
 
Defined in header <experimental/simd>
template < std::size_t... Sizes, class T, class Abi >

std::tuple<simd<T, simd_abi::deduce_t<T, Sizes>>...>

split( const simd<T, Abi>& v );
(1) (parallelism TS v2)
template < std::size_t... Sizes, class T, class Abi >

std::tuple<simd_mask<T, simd_abi::deduce_t<T, Sizes>>...>

split( const simd_mask<T, Abi>& v );
(2) (parallelism TS v2)
template < class V, class Abi >

std::array<V, simd_size_v<typename V::value_type, Abi> / V::size()>

split( const simd<typename V::value_type, Abi>& v );
(3) (parallelism TS v2)
template < class V, class Abi >

std::array<V, simd_size_v<typename V::value_type, Abi> / V::size()>

split( const simd_mask<typename V::value_type, Abi>& v );
(4) (parallelism TS v2)

Splits the input simd or simd_mask object into multiple simd or simd_mask objects.

1-2) split the input object into potentially different types (e.g. types with different sizes) of objects. These functions do not participate in overloading resolution unless Sizes... sum up to v.size().
3-4) split the input object into a array of objects. These functions do not participate in overloading resolution unless
  • The array element must be of type simd or simd_mask, for the type of v as simd or simd_mask, respectively.
  • simd_size_v<typename V::value_type, Abi> is an integral multiple of V::size().

[edit] Parameters

v - the input simd or simd_mask object

[edit] Return value

1-2) a tuple that contains the splitted simd or simd_mask objects.
3-4) an array that contains the splitted simd or simd_mask objects.

[edit] Example