Previously, if Blanchard-Kahn conditions were not satisfied, there was the
possibility an exception about NaN/Inf values in gy/gu was raised *before* the
exception about BK itself, leading to a confusing message. This commits moves
the test for BK before the test for NaN/Inf in gy/gu.
Closes: #674
— Ondra Kamenik has agreed to the relicensing of utils and parser modules to
GPL
— add DynareTeam’s copyright, since we have made a lot of modifications
— add proper copyright notices in all files
Note that I removed several #define whose purpose was to avoid typing "typename
ctraits<t>::…". Even though this tends to complicates the code, this is
probably safer, especially since the #define was capturing a free variable (t).
Many BLAS/LAPACK calls were making the assumption that LD==rows when passing
matrices. In some cases this was correct (because of implementation details,
in particular because how the copy constructor of GeneralMatrix is implemented).
But in other cases it was a bug.
With this commit, the actual value for LD is systematically used (this fixes
existing bugs and prevent possible future ones if the implementation details
were changed).
The criterium was previously incorrectly applied to the square absolute value
of eigenvalues. Rather apply it to the absolute value itself (as now done in
Dynare).
Ref #1632
Sébastien Villemot