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replace custom conditional type selector by std::conditional

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I did not know about std::conditional until today...
This commit is contained in:
Andreas Lauser 2015-07-29 13:56:53 +02:00
parent fc2e6c9918
commit 5d2dadc6e1
1 changed files with 26 additions and 46 deletions
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72
opm/material/fluidstates/SimpleModularFluidState.hpp
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@ -35,29 +35,9 @@
#include "FluidStateEnthalpyModules.hpp"
#include "ModularFluidState.hpp"
#include <type_traits>
namespace Opm {
/*!
* \brief This is a helper class to select a type depending on a condition.
*
* This is required for the template-meta-programming-foo of SimpleModularFluidState.
*/
template <bool yesno, class TrueType, class FalseType>
class IfThenElseType;
template <class TrueType, class FalseType>
class IfThenElseType<true, TrueType, FalseType>
{
public:
typedef TrueType type;
};
template <class TrueType, class FalseType>
class IfThenElseType<false, TrueType, FalseType>
{
public:
typedef FalseType type;
};
// this macro is a small hack to prevent death-through verbosity
#define OPM_SMFS SimpleModularFluidState<ScalarT, \
numPhasesV, \
@ -94,30 +74,30 @@ template <class ScalarT,
bool storeEnthalpy>
class SimpleModularFluidState
: public ModularFluidState<ScalarT, numPhasesV, numComponentsV,
typename IfThenElseType<storePressure,
FluidStateExplicitPressureModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullPressureModule<ScalarT> >::type,
typename IfThenElseType<storeTemperature,
FluidStateExplicitTemperatureModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullTemperatureModule<ScalarT> >::type,
typename IfThenElseType<storeComposition,
FluidStateExplicitCompositionModule<ScalarT, FluidSystem, OPM_SMFS>,
FluidStateNullCompositionModule<ScalarT> >::type,
typename IfThenElseType<storeFugacity,
FluidStateExplicitFugacityModule<ScalarT, numPhasesV, numComponentsV, OPM_SMFS>,
FluidStateNullFugacityModule<ScalarT> >::type,
typename IfThenElseType<storeSaturation,
FluidStateExplicitSaturationModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullSaturationModule<ScalarT> >::type,
typename IfThenElseType<storeDensity,
FluidStateExplicitDensityModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullDensityModule<ScalarT, numPhasesV, OPM_SMFS> >::type,
typename IfThenElseType<storeViscosity,
FluidStateExplicitViscosityModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullViscosityModule<ScalarT, numPhasesV, OPM_SMFS> >::type,
typename IfThenElseType<storeEnthalpy,
FluidStateExplicitEnthalpyModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullEnthalpyModule<ScalarT, numPhasesV, OPM_SMFS> >::type
typename std::conditional<storePressure,
FluidStateExplicitPressureModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullPressureModule<ScalarT> >::type,
typename std::conditional<storeTemperature,
FluidStateExplicitTemperatureModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullTemperatureModule<ScalarT> >::type,
typename std::conditional<storeComposition,
FluidStateExplicitCompositionModule<ScalarT, FluidSystem, OPM_SMFS>,
FluidStateNullCompositionModule<ScalarT> >::type,
typename std::conditional<storeFugacity,
FluidStateExplicitFugacityModule<ScalarT, numPhasesV, numComponentsV, OPM_SMFS>,
FluidStateNullFugacityModule<ScalarT> >::type,
typename std::conditional<storeSaturation,
FluidStateExplicitSaturationModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullSaturationModule<ScalarT> >::type,
typename std::conditional<storeDensity,
FluidStateExplicitDensityModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullDensityModule<ScalarT, numPhasesV, OPM_SMFS> >::type,
typename std::conditional<storeViscosity,
FluidStateExplicitViscosityModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullViscosityModule<ScalarT, numPhasesV, OPM_SMFS> >::type,
typename std::conditional<storeEnthalpy,
FluidStateExplicitEnthalpyModule<ScalarT, numPhasesV, OPM_SMFS>,
FluidStateNullEnthalpyModule<ScalarT, numPhasesV, OPM_SMFS> >::type
>
{};