On Thu, 18 Mar 2010, Mindaugas Kavaliauskas wrote:
Hi,
> PROC main()
> LOCAL nResult
> ? "Len:", HB_BZ2_UNCOMPRESSLEN(HB_BZ2_COMPRESS(""), @nResult)
> ? "nResult:", nResult
> RETURN
> prints:
> Len: 0
> nResult: 0
> So I suggest change:
> HB_BZ2_UNCOMPRESSLEN( <cCompressedData>, [<@nResult>] )
> -> <nUnCompressedDataLen> or 0 on error
> to:
> HB_BZ2_UNCOMPRESSLEN( <cCompressedData>, [<@nResult>] )
> -> <nUnCompressedDataLen> or -1 on error
> Any objections?
Few notes:
1. HB_BZ2_COMPRESS("") returns empty string and HB_BZ2_UNCOMPRES("")
accepts empty string without any errors and also return empty string.
In the same way are working corresponding ZLIB functions:
HB_ZCOMPRESS() and HB_ZUNCOMPRESS()
2. We probably have to add RTE when 1-st parameter is not string
3. HB_ZUNCOMPRESSLEN() should also be updated to return compatible results.
I'll commit such modifications soon.
best regards,
Przemek
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