yes, it seems that math.h does not define the log2 function on some systems.
Sorry, for this. My proposition is to patch the osg's Math file to support for log2 method. I attached the patched file, which contains log2 function. Best regards, Art --- sicong he <[EMAIL PROTECTED]> schrieb: > It seems that VS2005 c++ library do not have log2() > function defined. So I > change log2() function to log()/log(2.0), I don't > know if it is slower than > log2() but it really works. > > 2007/9/11, sicong he <[EMAIL PROTECTED]>: > > > > I fixed this by change all log2(x) to: > > log((double)maximum(...))/log(2.0) > > Then I successfully built under VS2005. > > Attachment is my patch for this problem. Please > test it. > > > > 2007/9/11, Shue, John <[EMAIL PROTECTED]>: > > > > > > I'm getting same compiler error on FreeBSD: > > > Texture1D.cpp:417: error: `log2' was not > declared in this scope > > > > > > I did: > > > # svn update > > > # ./configure > > > # make > > > > > > -john > > > > > > ------------------------------ > > > *From:* > [EMAIL PROTECTED] [mailto: > > > [EMAIL PROTECTED] *On > Behalf Of *sicong he > > > *Sent:* Tuesday, September 11, 2007 10:21 AM > > > *To:* Public OpenSceneGraph Users discussion > list. > > > *Subject:* Re: [osg-users] Please test SVN > version of OpenSceneGraph > > > > > > > > > I get latest version and build under VS2005. > > > But in these line: > > > TextureRectangle.cpp Line 561, > TextureCubeMap.cpp Line 387, > > > Texture3D.cpp Line 459, Texture2DArray.cpp Line > 467, Texture2D.cpp Line > > > 411, > > > Texture1D.cpp Line 417 > > > These lines VS2005 reports: > > > error C3861: "log2" can't find symbol > > > Is there some header lost? > > > > > > > > > > > > 2007/9/11, Robert Osfield > <[EMAIL PROTECTED]>: > > > > > > > > Hi All, > > > > > > > > I have merged quite a few changes to the OSG > over the last few days, > > > > these could break the build, so I'd like some > feedback on how the OSG > > > > is build and running on various platforms > before I go ahead the weekly > > > > dev release (2.1.10). > > > > > > > > Thanks in advance, > > > > Robert. > > > > > _______________________________________________ > > > > osg-users mailing list > > > > [email protected] > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > > This communication, along with any attachments, > is covered by federal and state law governing > electronic communications and may contain company > proprietary and legally privileged information. > > > If the reader of this message is not the > intended recipient, you are hereby notified that any > dissemination, distribution, use or copying of this > message is strictly prohibited. > > > If you have received this in error, please reply > immediately to the sender and delete this message. > Thank you. > > > > > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > Heute schon einen Blick in die Zukunft von E-Mails wagen? Versuchen Sie´s mit dem neuen Yahoo! Mail. www.yahoo.de/mail
Math
Description: 2923311751-Math
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