Hi Alexander Using the latest version of lexical_cast (and lcast_precision.hpp) hasn't made any difference. The code still misbehaves. I have found a culprit, in terms of a function that when removed does cure the problem. At the top of the main function, before the test snippet, I had a call to _Control87(MCW_EM,MCW_EM). Moving the code snippet before this call makes the code work correctly. Now comes the rub. My software runs on a system which uses the NI-DAQmx ANSI C Function Library. In their documentation they state that the _Control87(MCW_EM,MCW_EM) statement is required to stop their libraries crashing when compiled with Borland C and Delphi. They claim to have fixed this issue in later versions of their libraries. Unfortunately, most of our systems in the field are using an earlier version so upgrading the library and removing the offending statement is not possible. Brickwall meet head. Laurence Bunnage Software Engineer e-mail: Laurence.Bunnage@teraview.com TeraView Limited Registered in England Registered Office: Platinum Building, St John's Innovation Park, Cambridge CB4 0WS Registered Number: 04126946 VAT Number: 770 8883 84 -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Alexander Nasonov Sent: 28 November 2007 17:29 To: boost-users@lists.boost.org Subject: Re: [Boost-users] [lexical cast] suspected bug David Abrahams <dave <at> boost-consulting.com> writes:
If you want attention, it's always a good idea to put the library name in the subject line. Cheers,
I replied to the post using gmane interface but I wasn't subscribed to the list and my reply didn't get through. Laurence, please try boost-trunk first (download instruction can be found at svn.boost.org). If you can't use svn, either download trunk.tar.bz2 by clicking on http://beta.boost.org/development/snapshot.php/trunk or copy boost/detail/lcast_precision.hpp and boost/lexical_cast.hpp to your local copy of boost (don't forget to backup a previous version of lexical_cast.hpp). Precision setting has changed a lot since 1.34. -- Alexander _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users