Re: [Boost-users] [Math] Accuracy test failures on QNX 6.4.0

Subject: Re: [Boost-users] [Math] Accuracy test failures on QNX 6.4.0
From: John Maddock (john_at_[hidden])
Date: 2008-11-19 04:58:54

Niklas Angare wrote:
>>> can you let me have the result of running the program below (*after*
>>> you've done an SVN update, as I've had to update the
>>> debugging/tracing code)
>>
>> Here you go:

Thanks, but I admit to being stuck... somewhere around line 320 of 
boost/math/tools/roots.hpp there's a NaN being generated for type 
real_concept, but not for type long double (and real_concept is just a very 
thin wrapper around long double).  Can you set a breakpoint at that location 
and see what the problem is?  It should be the third time through that the 
problem occurs.

Many thanks for your help, John.