[Octave-bug-tracker] [bug #39000] Can't override BLAS XERBLA handler on Windows

[Rik]

Follow-up Comment #38, bug #39000 (project octave):

In each of the the three bug reports the problem has essentially been operands
with Inf or NaN that--through mldivide or mrdivide--end up calling particular
Fortran routines in liboctave.

There are a number of ways in, but they only lead to a few routines in
dMatrix.cc (and friends).  So should something like my suggested code in
comment #34 be implemented?  Should it reside in place (3 instances in
dMatrix.cc) or should a new local function in dMatrix.cc like norm1 be
created?

More ambitiously, max() for arrays could be extended to accept a nanflag. 
There is a bug report about that somewhere, and Matlab has had this for a
while.  If this were done then the 1-norm would be quite simple to calculate
without having to handroll any code.


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