scalar.hpp

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// SPDX-FileCopyrightText: 2023 - 2025 NeoN authors
//
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <Kokkos_Core.hpp> // IWYU pragma: keep
#include "NeoN/core/primitives/traits.hpp"
 
// TODO this needs to be implemented in the corresponding cmake file
namespace NeoN
{
#ifdef NeoN_DP_SCALAR
typedef double scalar;
#else
typedef float scalar;
#endif
 
constexpr scalar ROOTVSMALL = 1e-18;
 
KOKKOS_INLINE_FUNCTION
scalar mag(const scalar& s) { return std::abs(s); }
 
// traits for scalar
template<>
KOKKOS_INLINE_FUNCTION scalar one<scalar>()
{
    return 1.0;
};
 
template<>
KOKKOS_INLINE_FUNCTION scalar zero<scalar>()
{
    return 0.0;
};
 
} // namespace NeoN