[boost] [ublas] 1.33 regressions in test4 and test5

From: John Maddock (john_at_[hidden])
Date: 2005-05-07 05:17:01

I don't know who (if anyone?) is maintaining ublas at present, but test4 and 
test5 are failing *on every single compiler* at present.

I've partly traced the problem: an exception is being thrown in banded.hpp 
line 192, in :

boost::numeric::ublas::banded_matrix<double,boost::numeric::ublas::basic_row_major<unsigned 
int,int>,boost::numeric::ublas::unbounded_array<double,std::allocator<double> 
 > >::operator()(unsigned int i=0x00000000, unsigned int j=0x00000001)  Line 
192 + 0x34 C++

The cause is that the member data member _upper has been initialised to 
zero, which means any attempt here to access members of the matrix results 
in an exception being thrown!

At present I'm stumped, I haven't been able to figure out what the code is 
supposed to do well enough to even begin to suggest a fix, so I'm just 
hoping this will ring a bell with someone, who'll know what to do :-)

Regards,

John.