nando ha scritto: > I'm sorry, but I cannot see this as correct. > Saving a 4 byte value in integer format then > reading in the same 4 byte value and place it in an float variable > performs no conversion. > Conversion is needed due to how we want to interpret the type of data. > Indeed it does (perhaps a different syntax should be used - the one which writes in binary format). The problem is that it is easy to write an integer constant in the correct form (&h...); different is the case when you read them from somewhere - they can have a different byte order or format (in this case you can manipulate them).
Another problem is to use a file for doing this - this is a great waste of resources; gambas has pointers too, but they are difficult to use. Regards, Doriano > > > ---------- Original Message ----------- > From: hjherb...@web.de > To: gambas-user@lists.sourceforge.net > Sent: Sat, 13 Dec 2008 17:21:39 +0100 > Subject: Re: [Gambas-user] Hex string to float > > >> ... For 32 Float use the "Single" data type. >> See http://gambasdoc.org/help/cat/datatypes >> See http://gambasdoc.org/help/lang/type/single >> >> The example conversion may be done by this way: >> >> PUBLIC SUB DemoSingle() >> DIM i AS Integer >> DIM f AS Single >> DIM hH AS File >> >> i = &h3fd55555& >> OPEN "/tmp/hexfloat.tmp" FOR WRITE CREATE AS #hH >> WRITE #hH, i >> CLOSE #hH >> OPEN "/tmp/hexfloat.tmp" FOR READ AS #hH >> READ #hH, f >> CLOSE #hH >> PRINT "i=", i, "HEX", Hex$(i), " f=", f >> END >> >> ------------------------------------------------------------------------------ >> SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. >> The future of the web can't happen without you. Join us at MIX09 to help >> pave the way to the Next Web now. Learn more and register at >> http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ >> _______________________________________________ >> Gambas-user mailing list >> Gambas-user@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/gambas-user >> > ------- End of Original Message ------- > > > ------------------------------------------------------------------------------ > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ > _______________________________________________ > Gambas-user mailing list > Gambas-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gambas-user > -- Doriano Blengino "Listen twice before you speak. This is why we have two ears, but only one mouth." ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
