std::experimental::simd_cast, std::experimental::static_simd_cast
Defined in header <experimental/simd>
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template
<
class V, class T, class Abi >
/*see below*/ simd_cast( const simd<T, Abi> & v ) noexcept ; |
(1) | (parallelism TS v2) |
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template
<
class V, class T, class Abi >
/*see below*/ static_simd_cast( const simd<T, Abi> & v ) noexcept ; |
(2) | (parallelism TS v2) |
Cast a simd object to another simd object. If V is T, returns simd<T, Abi>; otherwise, if V is a scalar type, returns simd<V, simd_abi:: fixed_size <simd<T, Abi> :: size ( ) >>
- every possible value of the input element can be represented with the output element,
- either is_simd_v<V> is false, or V::size() is simd<T, Abi>::size()
Parameters
| v | - | the input simd object |
Return value
A simd object with the i-th element initialized to static_cast<To>(v[i])
Notes
The TS specification is missing simd_cast and static_simd_cast overloads for simd_mask. The libstdc++ implementation provides the missing overloads in the std::experimental::__proposed
namespace stdx = std::experimental;
shortcut, you might be interested to use
namespace stdx { using namespace std::experimental; using namespace std::experimental::__proposed; }
instead. Alternatively, libstdc++ implements a __cvt() member function in simd_mask, which allows implicit conversion of the mask. See also: https://github.com/VcDevel/std-simd/issues/41
Example
| This section is incomplete Reason: no example |