10 #ifndef EIGEN_NUMTRAITS_H 11 #define EIGEN_NUMTRAITS_H 51 template<
typename T>
struct GenericNumTraits
54 IsInteger = std::numeric_limits<T>::is_integer,
55 IsSigned = std::numeric_limits<T>::is_signed,
57 RequireInitialization = internal::is_arithmetic<T>::value ? 0 : 1,
64 typedef typename internal::conditional<
66 typename internal::conditional<sizeof(T)<=2, float, double>::type,
71 static inline Real epsilon() {
return std::numeric_limits<T>::epsilon(); }
72 static inline Real dummy_precision()
77 static inline T highest() {
return (std::numeric_limits<T>::max)(); }
78 static inline T lowest() {
return IsInteger ? (std::numeric_limits<T>::min)() : (-(
std::numeric_limits<T>::max)()); }
82 HasFloatingPoint = !IsInteger
84 typedef NonInteger FloatingPoint;
88 template<
typename T>
struct NumTraits : GenericNumTraits<T>
92 : GenericNumTraits<float>
94 static inline float dummy_precision() {
return 1e-5f; }
97 template<>
struct NumTraits<double> : GenericNumTraits<double>
99 static inline double dummy_precision() {
return 1e-12; }
103 : GenericNumTraits<long double>
105 static inline long double dummy_precision() {
return 1e-15l; }
108 template<
typename _Real>
struct NumTraits<std::complex<_Real> >
109 : GenericNumTraits<std::complex<_Real> >
124 template<
typename Scalar,
int Rows,
int Cols,
int Options,
int MaxRows,
int MaxCols>
125 struct NumTraits<Array<Scalar, Rows, Cols, Options, MaxRows, MaxCols> >
132 typedef ArrayType & Nested;
138 RequireInitialization = 1,
150 #endif // EIGEN_NUMTRAITS_H
Definition: StdDeque.h:58
Holds information about the various numeric (i.e. scalar) types allowed by Eigen. ...
Definition: NumTraits.h:88
General-purpose arrays with easy API for coefficient-wise operations.
Definition: Array.h:42