[boost] Re: Problem with boost::optional and the BGL using the IBM xlC compiler

On Sep 11, 2004, at 3:09 AM, Matthias Troyer wrote:

A recent change to the file boost/graph/detail/adj_list_edge_iterator.hpp breaks the BGL on the IBM xlC compiler. The change is:

revision 1.7 date: 2004/08/24 22:00:33; author: dgregor; state: Exp; lines: +11 -10 Use boost::optional to avoid copying singular iterators

Ugh. I'll drop in the workaround. What's the #if or #ifdef to identify this compiler? Doug