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Numeric and Promote Traits of TinyVector | ![]() |
The numeric and promote traits for TinyVectors follow the general specifications for Numeric and Promotion Traits. They are implemented in terms of the traits of the basic types by partial template specialization:
template <class T, int SIZE> struct NumericTraits<TinyVector<T, SIZE> > { typedef TinyVector<typename NumericTraits<T>::Promote, SIZE> Promote; typedef TinyVector<typename NumericTraits<T>::RealPromote, SIZE> RealPromote; typedef typename NumericTraits<T>::isIntegral isIntegral; typedef VigraFalseType isScalar; typedef typename NumericTraits<T>::isSigned isSigned; // etc. }; template <class T, int SIZE> struct NormTraits<TinyVector<T, SIZE> > { typedef TinyVector<T, SIZE> Type; typedef typename Type::SquaredNormType SquaredNormType; typedef typename Type::NormType NormType; }; template <class T1, class T2, SIZE> struct PromoteTraits<TinyVector<T1, SIZE>, TinyVector<T2, SIZE> > { typedef TinyVector<typename PromoteTraits<T1, T2>::Promote, SIZE> Promote; };
#include <vigra/tinyvector.hxx>
Namespace: vigra
On compilers that don't support partial template specialization (e.g. MS VisualC++), the traits classes are explicitly specialized for TinyVector<VALUETYPE, SIZE>
with VALUETYPE = unsigned char | int | float | double
and SIZE = 2 | 3 | 4
.
© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) |
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