Conversion from legancy VS C++ Version 6

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charlesmaclean@sbcglobal.net - 01 Sep 2007 23:22 GMT

I been handed the job of converting a large 1998 application so it will
compile. There needs to be some minor chages to the code that is driving
this project. There are some embedded Crystal Reports that use the API and
engine on a SQL database. Has anybody done a similar conversion and if so
what should I know in advance before starting.

Thanks

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www.fruitfruit.com - 02 Sep 2007 15:45 GMT

My suggestion is to use conditional compilation so that your code can always be
compiled via VC6.
#if _MSC_VER >= 1400
// VC8 specific code

#else
// VC6 code

#endif

I have done such thing before and there is not so much work to do.

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David Wilkinson - 02 Sep 2007 16:54 GMT

> I been handed the job of converting a large 1998 application so it will
> compile. There needs to be some minor chages to the code that is
> driving this project. There are some embedded Crystal Reports that use
> the API and engine on a SQL database. Has anybody done a similar
> conversion and if so what should I know in advance before starting.

Charles:

I would just convert it and see what happens. I do not know of any
runtime issues with converting, so if you can get the code to compile it
will probably run correctly. But of course you have to test it.

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David Wilkinson
Visual C++ MVP

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Conversion from legancy VS C++ Version 6

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