Codejock Developer Community : HOWTO: PX_Double with greater precision http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 01:40:07 +0000 Tue, 08 Jan 2008 03:37:51 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=9238 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[HOWTO: PX_Double with greater precision : Hi Oleg; Sometimes the obvious...]]> http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29951&title=howto-px-double-with-greater-precision#29951 Author: mgampi
Subject: 9238
Posted: 08 January 2008 at 3:37am

Hi Oleg;
Sometimes the obvious can't be seen ...
Thanks for your help to direct me to the simplest solution!
]]> Tue, 08 Jan 2008 03:37:51 +0000 http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29951&title=howto-px-double-with-greater-precision#29951 <![CDATA[HOWTO: PX_Double with greater precision : Hi, As workaround you can manually...]]> http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29937&title=howto-px-double-with-greater-precision#29937 Author: Oleg
Subject: 9238
Posted: 08 January 2008 at 1:53am

Hi,
 
As workaround you can manually convert to/from string and store PX_String.
]]> Tue, 08 Jan 2008 01:53:32 +0000 http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29937&title=howto-px-double-with-greater-precision#29937 <![CDATA[HOWTO: PX_Double with greater precision : Hi; I&#039;m using PX_Double...]]> http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29918&title=howto-px-double-with-greater-precision#29918 Author: mgampi
Subject: 9238
Posted: 07 January 2008 at 5:57am

Hi;
I'm using PX_Double to store/retrieve measured data to/from XML files. As I see in source code of XTPropExchange.cpp the conversion to/from double uses the %g format specifier. Normally this should result in a double string to represent the value 'as compact as possible'. But in my case this leads to unwantes results.
E.g. if I store a -DBL_MAX (which is defined as -1.7976931348623158e+308) the result string is -1.79769e+308. This can't no longer be compared by using DBL_EPSILON (defined as 2.2204460492503131e-016).
So my questions are:
a) How can I increase the precision of double values for storing/retrieving to/from XML files when using the core XT toolkit?
or
b) How can I write my own PX_xxxx exchange functions to not touch the source of the current toolkit (11.2.2)?
]]> Mon, 07 Jan 2008 05:57:48 +0000 http://forum.codejock.com/forum_posts.asp?TID=9238&PID=29918&title=howto-px-double-with-greater-precision#29918