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This commit is contained in:
Benoit Jacob
2008-01-10 20:45:35 +00:00
parent 209cf7c91f
commit 45a4b61b5f
29 changed files with 162 additions and 107 deletions
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32
Eigen/src/Core/NumTraits.h
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@@ -41,10 +41,10 @@
* \li A typedef \a FloatingPoint, giving the "floating-point type" of \a T. If \a T is
* \c int, then \a FloatingPoint is a typedef to \c double. Otherwise, \a FloatingPoint
* is a typedef to \a T.
* \li A static const bool \a IsComplex. It is equal to \c true if \a T is a \c std::complex
* type, and to false otherwise.
* \li A static const bool \a HasFloatingPoint. It is equal to \c false if \a T is \c int,
* and to \c true otherwise.
* \li An enum value \a IsComplex. It is equal to 1 if \a T is a \c std::complex
* type, and to 0 otherwise.
* \li An enum \a HasFloatingPoint. It is equal to \c 0 if \a T is \c int,
* and to \c 1 otherwise.
*/
template<typename T> struct NumTraits;
@@ -52,32 +52,40 @@ template<> struct NumTraits<int>
{
typedef int Real;
typedef double FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = false;
enum {
IsComplex = 0,
HasFloatingPoint = 0
};
};
template<> struct NumTraits<float>
{
typedef float Real;
typedef float FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = true;
enum {
IsComplex = 0,
HasFloatingPoint = 1
};
};
template<> struct NumTraits<double>
{
typedef double Real;
typedef double FloatingPoint;
static const bool IsComplex = false;
static const bool HasFloatingPoint = true;
enum {
IsComplex = 0,
HasFloatingPoint = 1
};
};
template<typename _Real> struct NumTraits<std::complex<_Real> >
{
typedef _Real Real;
typedef std::complex<_Real> FloatingPoint;
static const bool IsComplex = true;
static const bool HasFloatingPoint = NumTraits<Real>::HasFloatingPoint;
enum {
IsComplex = 1,
HasFloatingPoint = 1 // anyway we don't allow std::complex<int>
};
};
#endif // EIGEN_NUMTRAITS_H