I'll fix it. On 2010 Mar 16, at 22:55, Mindaugas Kavaliauskas wrote:
> Hi, > > >> HB_BZ2_UNCOMPRESSLEN( <cCompressedData>, [<@nResult>] ) >> -> <nUnCompressedDataLen> or 0 on error > > I guess 0 can be also a valid result, if empty string was compressed. > So, we'll always need to check nResult, to check for error. -1 fits > better to indicate error condition. > > Perhaps the problem was HB_SIZE type which is unsigned, but we can solve > it in C level to always check iResult and return -1 to .prg level if > necessary. > > I'm unable to test if empty string can be compressed using bzip2, > because a simple test code tries to work as bzip utillity???!!! :-/ > I have a feeling that another main() function exists in bzip library, or > something like that... > > C:\cawi32\sample\test>cat test198.prg > PROC Main() > LOCAL cI, cJ, nErr > cI := "Hello" > cJ := HB_BZ2_COMPRESS(cI,, @nErr) > ? nErr, LEN(cJ), HB_STRTOHEX(cJ) > RETURN > > C:\cawi32\sample\test>test198.exe > test198.exe: I won't write compressed data to a terminal. > test198.exe: For help, type: `test198.exe --help'. > > C:\cawi32\sample\test>test198.exe --help > bzip2, a block-sorting file compressor. Version 1.0.5, 10-Dec-2007. > > usage: test198.exe [flags and input files in any order] > > -h --help print this message > -d --decompress force decompression > -z --compress force compression > -k --keep keep (don't delete) input files > -f --force overwrite existing output files > -t --test test compressed file integrity > -c --stdout output to standard out > -q --quiet suppress noncritical error messages > -v --verbose be verbose (a 2nd -v gives more) > -L --license display software version & license > -V --version display software version & license > -s --small use less memory (at most 2500k) > -1 .. -9 set block size to 100k .. 900k > --fast alias for -1 > --best alias for -9 > > If invoked as `bzip2', default action is to compress. > as `bunzip2', default action is to decompress. > as `bzcat', default action is to decompress to stdout. > > If no file names are given, bzip2 compresses or decompresses > from standard input to standard output. You can combine > short flags, so `-v -4' means the same as -v4 or -4v, &c. > > > Regards, > Mindaugas > > _______________________________________________ > Harbour mailing list (attachment size limit: 40KB) > Harbour@harbour-project.org > http://lists.harbour-project.org/mailman/listinfo/harbour _______________________________________________ Harbour mailing list (attachment size limit: 40KB) Harbour@harbour-project.org http://lists.harbour-project.org/mailman/listinfo/harbour