on Sun Apr 27 2008, "Michael Fawcett" <michael.fawcett-AT-gmail.com> wrote:
On Sun, Apr 27, 2008 at 9:38 PM, David Abrahams <dave@boost-consulting.com> wrote:
on Wed Mar 05 2008, Sebastian Redl <sebastian.redl-AT-getdesigned.at> wrote:
Michael Fawcett wrote:
I forgot to mention before that this is using VS 2005 as the compiler.
64- or 32- bit? It matters.
32-bit.
That's a poor test of any other compiler, or of what's possible, then. MS used the setjmp/longjmp approach to EH with that compiler, for compatibility with "structured exceptions." The 64-bit compiler has a "real" EH implementation ;-) One more thing to note about the case of terminating graph algorithms with exceptions: these algorithms have *lots* of hooks for each iteration of the process, each of which might need to terminate the algorithm (e.g. http://www.boost.org/doc/libs/1_35_0/libs/graph/doc/DFSVisitor.html), so that can add up to quite a few tests for each iteration of the inner loop, which can be avoided if EH is used. -- Dave Abrahams Boost Consulting http://boost-consulting.com