Converting a double to a FlpDouble, and vice versa

[Glenn Bachmann]

Hello,

We are looking to take some fairly complex legacy code that is riddled with
variables of type "double", and integrate it with some new user interface
code that uses FlpDouble to enable easy ascii conversions. We are using
NewFloatMgr and have set 8-bit doubles to be on.

Our understanding is that "double" will work fine using NewFloatMgr and
CodeWarrior 5+, but that we should be using the Flp apis to enable ascii
conversion. What is missing for us is a way to convert back and forth
between FlpDouble and double (I'm guessing a simple cast will not work!).

Essentially we want to do this:

CalcSomething ( void )
{
        FlpDouble fdA;
        FlpDouble fdB;
        double dResult;
        char string1[20];
        char string2[20];

        // get values from user input fields into strings
        
        // convert string1 to an FlpDouble using FlpAToF ( fdA, string1 );
        // convert string2 to an FlpDouble using FlpAToF ( fdB, string2 );

        // convert FlpDoubles into doubles
        dA = FlpConvertToDouble ( fdA ); // does this function exist????
        dB = FlpConvertToDouble ( fdB ); // does this function exist????

        // pass to calc routine
        dResult = fooCalcSomethingReallyComplex (dA, dB);

        // convert double result into FlpDouble
        fdResult = FlpConvertToFlpDouble ( dResult ); // does this function exist?

        // convert FlpDouble into a string using FlpFToA ( stringResult, fdResult );
        
        // display results
        WinDrawChars (...);

        return;
}

Is there such a thing as FlpConvertToDouble/ConvertToFlpDouble? If not, how
would I convert from double to FlpDouble and back?

Thanks,

Glenn Bachmann
Bachmann Software and Services, LLC
http://www.bachmannsoftware.com
Software for Handheld & Wireless Computing, Windows and the Internet
Authors of "Palm Programming", published by Macmillan/Sams, and home of
Bachmann Print Manager, the only graphical printing solution for the Palm
Computing Platform