NumTraits Class Reference
Detailed Description
Holds some data about the various numeric (i.e. scalar) types allowed by Eigen.
- Parameters:
-
| T | the numeric type about which this class provides data. Recall that Eigen allows only the following types for T: int, float, double, std::complex<float>, std::complex<double>, and long double (especially useful to enforce x87 arithmetics when SSE is the default). |
The provided data consists of:
- A typedef Real, giving the "real part" type of T. If T is already real, then Real is just a typedef to T. If T is
std::complex<U> then Real is a typedef to U.
- A typedef FloatingPoint, giving the "floating-point type" of T. If T is
int, then FloatingPoint is a typedef to double. Otherwise, FloatingPoint is a typedef to T.
- An enum value IsComplex. It is equal to 1 if T is a
std::complex type, and to 0 otherwise.
- An enum HasFloatingPoint. It is equal to
0 if T is int, and to 1 otherwise.
The documentation for this class was generated from the following file:
1.5.5