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File indexing completed on 2025-09-16 08:52:43
0001 //------------------------------- -*- C++ -*- -------------------------------// 0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details 0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT) 0004 //---------------------------------------------------------------------------// 0005 //! \file corecel/math/UnitUtils.hh 0006 //! \brief Helpers for unit trait classes 0007 //---------------------------------------------------------------------------// 0008 #pragma once 0009 0010 #include "corecel/Macros.hh" 0011 0012 namespace celeritas 0013 { 0014 //---------------------------------------------------------------------------// 0015 //! Value is 1 / C1::value() 0016 template<class C1> 0017 struct UnitInverse 0018 { 0019 //! Get the conversion factor of the resulting unit 0020 static CELER_CONSTEXPR_FUNCTION auto value() noexcept -> decltype(auto) 0021 { 0022 return 1 / C1::value(); 0023 } 0024 }; 0025 0026 //---------------------------------------------------------------------------// 0027 //! Value is C1::value() / C2::value() 0028 template<class C1, class C2> 0029 struct UnitDivide 0030 { 0031 //! Get the conversion factor of the resulting unit 0032 static CELER_CONSTEXPR_FUNCTION auto value() noexcept -> decltype(auto) 0033 { 0034 return C1::value() / C2::value(); 0035 } 0036 }; 0037 0038 //! Value is C1::value() * C2::value() 0039 template<class C1, class C2> 0040 struct UnitProduct 0041 { 0042 //! Get the conversion factor of the resulting unit 0043 static CELER_CONSTEXPR_FUNCTION auto value() noexcept -> decltype(auto) 0044 { 0045 return C1::value() * C2::value(); 0046 } 0047 }; 0048 0049 //---------------------------------------------------------------------------// 0050 } // namespace celeritas
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