Re: [Boost-users] Buggy Prim's minimum spanning tree example

From: Doug Gregor (dgregor_at_[hidden])
Date: 2006-02-27 10:53:18

On Feb 17, 2006, at 4:28 PM, Olivier Delalleau wrote:

> Hello,
>
> I have a problem with the example for Prim's minimum spanning tree that
> can be found here:
> http://www.boost.org/libs/graph/example/prim-example.cpp
>
> The problem is that when compiled in 32 bits but run on a 64 bits
> computer, and modified with different edges and weights, it does not
> work anymore.
> The modified version that exhibits this behaviour is here:
> http://www.iro.umontreal.ca/~delallea/tmp/prim-example-fail.cpp
> It is a simplified version (I removed some compiler-specific code for
> MSVC) where I replaced the edges and weights by a real-life example I
> have to solve.

Unfortunately, I am unable to duplicate the problem here. On our 64-bit 
Opteron machines (running Linux), I get the same results for 64- and 
32-bit binaries.

Which version of Boost are you using? What operating system? What 
version of GCC?

        Doug