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,
72 static inline Real epsilon()
74 #if defined(__CUDA_ARCH__) 75 return internal::device::numeric_limits<T>::epsilon();
77 return std::numeric_limits<T>::epsilon();
81 static inline Real dummy_precision()
89 static inline T highest() {
90 #if defined(__CUDA_ARCH__) 91 return (internal::device::numeric_limits<T>::max)();
93 return (std::numeric_limits<T>::max)();
98 static inline T lowest() {
99 #if defined(__CUDA_ARCH__) 100 return IsInteger ? (internal::device::numeric_limits<T>::min)() : (-(
internal::device::numeric_limits<T>::max)());
102 return IsInteger ? (std::numeric_limits<T>::min)() : (-(
std::numeric_limits<T>::max)());
107 template<
typename T>
struct NumTraits : GenericNumTraits<T>
111 : GenericNumTraits<float>
114 static inline float dummy_precision() {
return 1e-5f; }
117 template<>
struct NumTraits<double> : GenericNumTraits<double>
120 static inline double dummy_precision() {
return 1e-12; }
124 : GenericNumTraits<long double>
126 static inline long double dummy_precision() {
return 1e-15l; }
129 template<
typename _Real>
struct NumTraits<std::complex<_Real> >
130 : GenericNumTraits<std::complex<_Real> >
145 template<
typename Scalar,
int Rows,
int Cols,
int Options,
int MaxRows,
int MaxCols>
146 struct NumTraits<Array<Scalar, Rows, Cols, Options, MaxRows, MaxCols> >
153 typedef ArrayType & Nested;
159 RequireInitialization = 1,
171 #endif // EIGEN_NUMTRAITS_H
Definition: StdDeque.h:58
Holds information about the various numeric (i.e. scalar) types allowed by Eigen. ...
Definition: NumTraits.h:107
Definition: Eigen_Colamd.h:54
General-purpose arrays with easy API for coefficient-wise operations.
Definition: Array.h:45