Dennis Poon wrote:
I downloaded the Paszlib-sg from
http://sagsehome.net/oss/paszlib-sg.php (as suggested by Paszlib
freepascal.org wiki).
I works fine on my Delphi 5 until I try to compress a file with size
of 70M and it raises the exception of integer flow error.
Does anyone have this problem?
I initially thought it might be a Delphi 5 problem so I tried to use
Lazarus with fpc 2.6.2 to compile the same problem but it kept
complaining cannot find zstream although I already add FCL package to
the required packages list.
Please help.
Dennis
I found the bug, it is in zDeflat.pas
procedure fill_window
line 1595:
Dec(s.match_start, wsize) ; //which gives integer underflow as
s.match_start is < wsize and both paramters are defined as unit
When the file to compress is > 30M in size
I am ok to avoid compressing any file that big but I just worried that
this bug might happen in other situations as well.
Is anyone else using this paszlib?
Dennis
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