/usr/include/dune/functions/gridfunctions/localderivativetraits.hh is in libdune-functions-dev 2.5.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_FUNCTIONS_GRIDFUNCTIONS_LOCALDERIVATIVE_TRAITS_HH
#define DUNE_FUNCTIONS_GRIDFUNCTIONS_LOCALDERIVATIVE_TRAITS_HH
#include <dune/functions/common/defaultderivativetraits.hh>
namespace Dune {
namespace Functions {
/**
* \brief Derivative traits for local functions
*
* \ingroup FunctionUtility
*
* This provides derivative traits to be used by local functions with
* given EntitySet and global DerivativeTraits.
*
* The reason why this is needed is that local functions return
* derivatives wrt to global coordinates although the arguments
* for these derivatives are local coordinates.
*/
template<class EntitySet, template<class> class DerivativeTraits=DefaultDerivativeTraits>
struct LocalDerivativeTraits
{
using LocalDomain = typename EntitySet::LocalCoordinate;
using Domain = typename EntitySet::GlobalCoordinate;
template<class Signature>
struct Traits
{
typedef InvalidRange Range;
};
template<class R>
struct Traits<R(LocalDomain)>
{
using Range = typename DerivativeTraits<R(Domain)>::Range;
};
};
}} // namespace Dune::Functions
#endif // DUNE_FUNCTIONS_GRIDFUNCTIONS_LOCALDERIVATIVE_TRAITS_HH
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