| Technical Specification | ||||
| 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) | ||||
| Experimental Non-TS | ||||
| Pattern Matching | ||||
| Linear Algebra | ||||
| std::execution | ||||
| Contracts | ||||
| 2D Graphics |
| Parallel exceptions | ||||
| Additional execution policies | ||||
| Algorithms | ||||
| Task blocks | ||||
| Data-parallel vectors | ||||
| Member functions | ||||
| Non-member functions | ||||
staticconstexpr size_t size()noexcept; | (parallelism TS v2) | |
Returns the width (the number of values) ofsimd<T, Abi>.
The actual output depends on target and compiler flags.
#include <experimental/simd>#include <cstdint>#include <iostream>namespace stdx= std::experimental; int main(){ stdx::native_simd<std::int32_t> a=1;std::cout<< a.size()<<'\n';std::cout<< reduce(a)<<'\n';}
Possible output:
1616
(parallelism TS v2) | obtains the number of elements of a given element type and ABI tag (class template)[edit] |
[static](parallelism TS v2) | returns the width / number of elements (public static member function of std::experimental::simd_mask<T,Abi>)[edit] |
