Hello,
I have a problem with a simple call to the determinant of a
Eigen::Matrix<NT,Eigen::Dynamic,Eigen::Dynamic> . This works for many
different instantiations of NT, like mpq_class. The problem is when I try to
use a rational number type from the CGAL library, CGAL::Gmpq. I get the
following error from the compiler:
/usr/local/include/eigen3/Eigen/src/Core/Functors.h:284:90: error: call of
overloaded ‘abs(const CGAL::Gmpq&)’ is ambiguous
The point is that the function abs(a) is also defined for CGAL::Gmpq.
Digging inside the code, I found that the line 284 of the above file reads
EIGEN_STRONG_INLINE const result_type operator() (const Scalar& a) const {
return abs(a); }
This function is inside the namespace internal::, and I think what is
intended here is to return internal::abs(a). Changing this line resulted in
a correct compilation.
My question are two, then. Is it right what I am saying? Is it feasible to
make this change permanent?
Thank you,
--
Luis