std::experimental::clamp
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< cpp | experimental | simd
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Defined in header
<experimental/simd>
template< class T, class Abi >
(parallelism TS v2)
simd<T, Abi>
Contents
[edit] Parameters
v
-
the elements to clamp
lo, hi
-
the boundaries to clamp v to
[edit] Return value
The result of element-wise application of std::clamp (v[i], lo[i], hi[i]) for all i ∈ [0, size()).
[edit] Example
Run this code
#include <cstddef> #include <cstdint> #include <experimental/simd> #include <iomanip> #include <iostream> namespace stdx = std::experimental; void println(auto rem, auto const v) { std::cout << rem << ": "; for (std::size_t i = 0; i != v.size(); ++i) std::cout << std::setw (4) << v[i] << ' '; std::cout << '\n'; } int main() { stdx::fixed_size_simd<int, 8> a{[](int i) { static constexpr auto c = {-129, -128, -1, 0, 42, 127, 128, 255}; return c.begin()[i]; }}; println("a", a); stdx::fixed_size_simd<int, 8> lo1{INT8_MIN }; stdx::fixed_size_simd<int, 8> hi1{INT8_MAX }; const auto b = stdx::clamp(a, lo1, hi1); println("b", b); stdx::fixed_size_simd<int, 8> lo2{0}; stdx::fixed_size_simd<int, 8> hi2{UINT8_MAX }; const auto c = stdx::clamp(a, lo2, hi2); println("c", c); }
Output:
a: -129 -128 -1 0 42 127 128 255 b: -128 -128 -1 0 42 127 127 127 c: 0 0 0 0 42 127 128 255