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Complete rework of global math functions and NumTraits.

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* Now completely generic so all standard integer types (like char...) are supported.
** add unit test for that (integer_types).
* NumTraits does no longer inherit numeric_limits
* All math functions are now templated
* Better guard (static asserts) against using certain math functions on integer types.
This commit is contained in:
Benoit Jacob
2010-04-28 18:51:38 -04:00
parent 4f83d6ad19
commit e277586958
26 changed files with 900 additions and 498 deletions
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13
unsupported/Eigen/src/AutoDiff/AutoDiffScalar.h
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@@ -552,19 +552,10 @@ ei_pow(const AutoDiffScalar<DerType>& x, typename ei_traits<DerType>::Scalar y)
#undef EIGEN_AUTODIFF_DECLARE_GLOBAL_UNARY
template<typename DerType> struct NumTraits<AutoDiffScalar<DerType> >
: NumTraits< typename NumTraits<typename DerType::Scalar>::Real >
{
typedef typename NumTraits<typename DerType::Scalar>::Real Real;
typedef AutoDiffScalar<DerType> FloatingPoint;
typedef AutoDiffScalar<DerType> NonInteger;
typedef AutoDiffScalar<DerType>& Nested;
enum {
IsComplex = 0,
HasFloatingPoint = 1,
ReadCost = 1,
AddCost = 1,
MulCost = 1
};
inline static Real epsilon() { return std::numeric_limits<Real>::epsilon(); }
inline static Real dummy_precision() { return NumTraits<Real>::dummy_precision(); }
};
}