E.V.E
v2022.03.00

◆ is_ngtz

eve::is_ngtz = {}
inlineconstexpr

Returns a logical true if and only if the element value is not greater than zero.

Defined in Header

#include <eve/module/core.hpp>

Callable Signatures

namespace eve
{
template< eve::value T >
eve::as_logical<T> is_ngtz(T x) noexcept;
}
constexpr callable_is_ngtz_ is_ngtz
Returns a logical true if and only if the element value is not greater than zero.
Definition: is_ngtz.hpp:62
Definition: all_of.hpp:22

Parameters

Return value

Returns elementwise !(x > 0).

Note
This is not equivalent to (x <= 0) for floating values.

Example

#include <eve/module/core.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
wide_ft pf = {0.0f, 1.0f, -1.0f, -0.0f};
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "-> is_ngtz(pf) = " << eve::is_ngtz(pf) << '\n';
float xf = 1.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "-> is_ngtz(xf) = " << eve::is_ngtz(xf) << '\n';
return 0;
}
Wrapper for SIMD registers.
Definition: wide.hpp:65

Semantic Modifiers

  • Masked Call

    The call eve;is_ngtz[mask](x) provides a masked version of eve::is_ngtz which is equivalent to if_else (mask, is_ngtz(x), eve::false( eve::as(x))).

    Example

    #include <eve/module/core.hpp>
    #include <eve/wide.hpp>
    #include <iostream>
    int main()
    {
    wide_ft pf = {0.0f, 1.0f, -1.0f, -0.0f};
    std::cout << "---- simd" << '\n'
    << "<- pf = " << pf << '\n'
    << "-> is_ngtz[pf < -0.5](pf) = " << eve::is_ngtz[pf < -0.5](pf) << '\n';
    return 0;
    }