Re: [Mingw-users] Strange string runtime error

[Stephen M. W. <ste...@cr...>]

On June 7, 2002 01:38 am, Matt Fiedler wrote:
>
> In any case, I think the most likely thing is that I am mangling
> memory management somehow.  If anyone could point me toward some
> resources to read on how to track such problems down or some tools
> that are useful in this endeavor, I'd be very appreciative, and, even
> better from your perspective, I could stop wasting your time. :-)

Here's a suggestion: use the checked container functions (and add some 
to your own "matrix" container) to make sure that's not the source of 
your problem.

For example, vector::operator[] is not range checked, but vector::at() 
will throw an exception if an attempt is made to access memory outside 
of the valid range.  You should add a similar function to your matrix 
class.

You might also consider using standard algorithms (eg. std::for_each, 
std::transform, std::accumulate) instead of handrolled loops to 
eliminate the possibility of off-by-one range errors.

Those are the most likely sources of arena-trashing code.

Good luck.

-- 
Stephen M. Webb