[delphizip] Re: ZipMaster 1.9.0.111 Compiler warnings
- From: Uli Brueggemann <uli.brueggemann@xxxxxxxxx>
- To: delphizip@xxxxxxxxxxxxx
- Date: Mon, 24 Jan 2011 09:29:46 +0100
Thanks for your investigations.
So I'll sleep a little better.
IMHO the warnings/hint messages of the comiler should be better designed.
The explicit string casts messages should be hints as they are intended.
But the 'unsafe' warnings anyway do not give a good feeling, especially with
source code from others.
Uli
On Sun, Jan 23, 2011 at 10:44 PM, R Peters <rpeters@xxxxxxxxxxxxx> wrote:
> None of those warnings have any significance -
> The 'unsafe' warnings are for .Net
> The explicit string casts are doing what is required and are not casts,
> they are conversions (a 'cast' is making the compiler treat the existing
> data as something other than what it thinks it is whereas we are converting
> the string data).
> Russell Peters
> On Sat, Jan 22, 2011 at 7:54 PM, Uli Brueggemann
> <uli.brueggemann@xxxxxxxxx>wrote:
>
> > I use Delphi XE.
> >
> > It is of course dependent on the compiler settings.
> > But IMO compiler waning settings make sense. They help to program in a
> > good style or to avoid faults.
> > So I always try to get a compilation without warnings.
> >
> > Uli
> >
> > On Sat, Jan 22, 2011 at 8:35 AM, R Peters <rpeters@xxxxxxxxxxxxx> wrote:
> > > What Delphi version are you using?
> > > I imagine the warnings are being generated because of the default
> > compiler
> > > warning settings you are using.
> > > That said, I will check each warning to see if I can convince the
> > compiler
> > > that they are safe but unfortunately this is difficult over the range
> of
> > > Delphi versions supported.
> > > Russell Peters
> > >
> > > On Sat, Jan 22, 2011 at 6:26 PM, Uli Brueggemann
> > > <uli.brueggemann@xxxxxxxxx>wrote:
> > >
> > >> Hi,
> > >>
> > >> ZipMaster generates the attached compiler warnings.
> > >> Are they really necessary?
> > >>
> > >> Regards
> > >> Uli
> > >>
> > >> [DCC Warning] ZMStructs19.pas(411): W1046 Unsafe type '<anonymous
> > record>'
> > >> [DCC Warning] ZMStructs19.pas(418): W1046 Unsafe type '<anonymous
> > record>'
> > >> [DCC Warning] ZMStructs19.pas(605): W1046 Unsafe type '<anonymous
> > record>'
> > >> [DCC Warning] ZMStructs19.pas(612): W1046 Unsafe type '<anonymous
> > record>'
> > >> [DCC Warning] ZMCompat19.pas(124): W1060 Explicit string cast with
> > >> potential data loss from 'string' to 'AnsiString'
> > >> [DCC Warning] ZMUtils19.pas(180): W1046 Unsafe type 'TInt64Rec'
> > >> [DCC Warning] ZMUtils19.pas(474): W1048 Unsafe typecast of 'Cardinal'
> > >> to 'LongRec'
> > >> [DCC Warning] ZMUtils19.pas(475): W1048 Unsafe typecast of 'Cardinal'
> > >> to 'LongRec'
> > >> [DCC Warning] ZMUtils19.pas(930): W1048 Unsafe typecast of 'Cardinal'
> > >> to 'LongRec'
> > >> [DCC Warning] ZMUtils19.pas(1133): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMUtils19.pas(1444): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMUtils19.pas(1454): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMUtils19.pas(1508): W1048 Unsafe typecast of 'Integer'
> > >> to 'LongRec'
> > >> [DCC Warning] ZMUtils19.pas(1508): W1048 Unsafe typecast of 'Integer'
> > >> to 'LongRec'
> > >> [DCC Warning] ZMDlg19.pas(354): W1048 Unsafe typecast of 'TPoint' to
> > >> 'tagSIZE'
> > >> [DCC Warning] ZipMstr19.pas(1675): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZipMstr19.pas(2184): W1060 Explicit string cast with
> > >> potential data loss from 'string' to 'AnsiString'
> > >> [DCC Warning] ZMMsgStr19.pas(261): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMMsgStr19.pas(306): W1060 Explicit string cast with
> > >> potential data loss from 'string' to 'AnsiString'
> > >> [DCC Warning] ZMMsgStr19.pas(329): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMMsgStr19.pas(365): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMCore19.pas(1418): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMCore19.pas(1420): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMPipeImp'
> > >> [DCC Warning] ZMCore19.pas(1442): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMCore19.pas(1448): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMPipeImp'
> > >> [DCC Warning] ZMCore19.pas(1491): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMCore19.pas(1495): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMPipeImp'
> > >> [DCC Warning] ZMUTF819.pas(358): W1059 Explicit string cast from
> > >> 'string' to 'UTF8String'
> > >> [DCC Warning] ZMUTF819.pas(395): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMUTF819.pas(454): W1060 Explicit string cast with
> > >> potential data loss from 'string' to 'AnsiString'
> > >> [DCC Warning] ZMIRec19.pas(954): W1059 Explicit string cast from
> > >> 'RawByteString' to 'string'
> > >> [DCC Warning] ZMIRec19.pas(1500): W1059 Explicit string cast from
> > >> 'string' to 'UTF8String'
> > >> [DCC Warning] ZMIRec19.pas(1512): W1059 Explicit string cast from
> > >> 'string' to 'UTF8String'
> > >> [DCC Warning] ZMZipFile19.pas(867): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMIRec'
> > >> [DCC Warning] ZMZipFile19.pas(892): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMIRec'
> > >> [DCC Warning] ZMCendir19.pas(259): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TZMCentralEntry'
> > >> [DCC Warning] ZMWAUX19.pas(2239): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMWAUX19.pas(2240): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMWAUX19.pas(2241): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMWAUX19.pas(2242): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMWAUX19.pas(2243): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMDLLOpr19.pas(218): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(239): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(247): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(254): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(264): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(654): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLOpr19.pas(656): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TStream'
> > >> [DCC Warning] ZMDLLOpr19.pas(2087): W1048 Unsafe typecast of 'Pointer'
> > >> to 'TObject'
> > >> [DCC Warning] ZMDLLLoad19.pas(206): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> [DCC Warning] ZMDLLLoad19.pas(669): W1059 Explicit string cast from
> > >> 'AnsiString' to 'string'
> > >> -----------
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