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Re: Conversion.

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On Tue, 27 Nov 2012 19:40:39 +0000, Auric__ wrote:

> Unknown wrote:
> 
>> How can a signed 64 bits QUAD integer in PB be converted to a unsigned
>> 64 bit integer?
> 
> PowerBASIC doesn't have an unsigned 64-bit data type. You can fake it
> using EXT variables:
> 
>   f80## = CEXT(i64&&)
> 
> ...but note that due to how QUADs are implemented, and the limitations
> of floating-point types, very large values lose precision. (Read the
> help file's QUAD and EXT entries.) If that's not acceptable, you'll need
> to roll your own data type. Google for something like "implement
> unsigned 64-bit integer basic".
> 
> If you absolutely *must* have an unsigned 64-bit integer, and don't want
> to roll your own, you'll need to use a different language. (For example,
> FreeBASIC has ULONGINT, and QB64 (apparently) has _UNSIGNED _INTEGER64.)

There is a discussion on using the PB EXT data type for unsigned
64-bit numbers with some code examples here:
http://www.powerbasic.com/support/pbforums/showthread.php?t=51350
And here:
http://www.powerbasic.com/support/pbforums/showthread.php?p=387026

Just so happens that I had been researching the EXT data type for
the same purpose so I had the links bookmarked already.

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Conversion. "Unknown" <un.known@unknown.tt> - 2012-11-27 16:34 +0100
  Re: Conversion. "Auric__" <not.my.real@email.address> - 2012-11-27 19:40 +0000
    Re: Conversion. Wildman <best_lay@yahoo.com> - 2012-11-27 20:37 +0000

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