E.V.E
v2022.09.01

◆ copysign

eve::copysign = {}
inlineconstexpr

Computes the elementwise composition of a value with the magnitude of the first parameter and the bit of sign of the second one.

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
template< eve::real_value T, eve::real_value T >
T copysign(T x, U y) noexcept;
}
constexpr callable_copysign_ copysign
Computes the elementwise composition of a value with the magnitude of the first parameter and the bit...
Definition: copysign.hpp:65
Definition: all_of.hpp:22

Parameters

  • x, y : real arguments.

Return value

The value of the elementwise composition of a value with the magnitude of x and the bit of sign of y is returned.

Example

#include <eve/module/core.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
wide_ft pf = {0.0f, 1.0f, -1.0f, -2.0f, 2.0f,
wide_ft qf = {4.0f, 1.0f, -1.0f, 0.0f, -0.0f,
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "<- qf = " << qf << '\n'
<< "-> copysign(pf, qf) = " << eve::copysign(pf, qf) << '\n';
float xf = 4.0f;
float yf = -1.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "<- yf = " << yf << '\n'
<< "-> copysign(xf, yf) = " << eve::copysign(xf, yf) << '\n';
return 0;
}
constexpr callable_nan_ nan
Computes the IEEE NaN constant.
Definition: nan.hpp:53
constexpr callable_minf_ minf
Computes the -infinity ieee value.
Definition: minf.hpp:60
constexpr callable_inf_ inf
Computes the infinity ieee value.
Definition: inf.hpp:58
Lightweight type-wrapper.
Definition: as.hpp:29
Wrapper for SIMD registers.
Definition: wide.hpp:65

Semantic Modifiers