Archive for the ‘Delphi’ Category
Posted by jpluimers on 2013/12/27
One more for the weekend (:
I wrote about Some links on the Delphi compiler and the LLVM Compiler Infrastructure Project about a year and a half ago which caused a short discussion on the embarcadero forums . A few month later Robert Love showed his views in a response to Tim Anderson writing about Clang and LLVM in the C++ side of the toolchain . Tim Anderson wrote more about LLVM in the Delphi tool chain in September 2012 , then it went quiet for a while.
Since then the LLVM tool chain has integrated itself into both the C++ and Delphi toolchains and Wired wrote about LLVM .
Gunsmoker – who works at EurekaLog – wrote up some interesting comments in Russian (I hope the English Google translation is good enough).
In my view, the LLVM tool chain opens a lot more possibilities (shared back-end for Delphi and C++, coverage of more platforms, better optimization), but is also a lot slower and makes the debugging part a lot harder as the debugger is – symbol wise – much further away from the compiler than in the traditional setting (hence the 3 levels of debugging information that got introduced in Delphi XE5 and the compatibility problem that came with it ).
I’m wondering what other users in the Delphi community think about the LVVM chain: is it working good enough for you? Should it be integrated further into the Windows/OSX parts of the chain?
–jeroen
Posted in Delphi , Delphi XE3 , Delphi XE4 , Delphi XE5 , Development , Software Development | 26 Comments »
Posted by jpluimers on 2013/12/24
I’ve been wanting this a very long time, so I’m going to install it Right Now ™ (:
Right before X-Mas, Scooter Software did the ANN: Beyond Compare 4.0 beta available on Windows, Linux, and OS X :
Posted: Dec 23, 2013 4:17 PM
Beyond Compare 4.0 beta is now available for testing on Windows, Linux, and OS X.
http://www.scootersoftware.com/beta
This version adds a number of new features: Read the rest of this entry »
Posted in *nix , Apple , Beyond Compare , Delphi , Development , Linux , Mac , Mac OS X / OS X / MacOS , Mac OS X 10.7 Lion , MacBook , MacBook Retina , MacBook-Air , MacBook-Pro , OS X 10.8 Mountain Lion , Power User , Software Development , Source Code Management , SuSE Linux , Windows | Leave a Comment »
Posted by jpluimers on 2013/12/22
Cool stuff: DelphiSpec library, inspired by Cucumber . It runs on top of DUnit .
via DelphiSpec Library Announce « Роман.Янковский.me .
A similar one in the .NET realm: SpecFlow – Pragmatic BDD for .NET .
–jeroen
Posted in .NET , .NET 3.5 , .NET 4.0 , .NET 4.5 , C# , C# 3.0 , C# 4.0 , C# 5.0 , Delphi , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Delphi XE4 , Delphi XE5 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2013/12/19
Even when not using Visual Live Binding , Delphi generates empty .VLB files in both Delphi XE3 (virtually always ) and Delphi XE4 (most of the time ).
Visual Live Binding is one way of binding data to UI in FireMonkey and can also be used in VCL, but does not have to (Alister Christie made a nice video ▶ Delphi Training Tutorial #77 – Visual Live Bindings – YouTube about it).
Empty VLB files, and a batch file to delete them
The “empty” VLB files are almost empty, as they are exactly 3 bytes long and contain the byte sequence EF BB BF which is the Unicode BOM (byte order mark ) for the UTF-8 encoding . Read the rest of this entry »
Posted in Delphi , Delphi XE3 , Delphi XE4 , Delphi XE5 , Development , Encoding , QC , Software Development , Unicode , UTF-8 , UTF8 | Tagged: Delphi , VLB | Leave a Comment »
Posted by jpluimers on 2013/12/19
Another episode in the Missed Schedule series that was originally scheduled for 20131201:
Until I read the comments at Monitoring the Monitor , I only knew the early days of Matt Pietrek ‘s work at NuMega and as co-author of one of the first Undocumented Windows books (another one appeared about the same time).
Now I know Matt was one of the people interviewing Allen Bauer for his first position at Borland .
A bit more search revealed Matt worked at Borland from 1988 until 1992 , roughly the era from Turbo Pascal 5 until Borland Pascal 7 (when Borland already had started researching Delphi), but more importantly with Turbo Debugger versions 1-3 that were indispensable when programming using Turbo C / Turbo C++ and Borland C++ .
When Borland was working in Delphi 95 , and Microsoft on Windows 95 , he moved to Nu-Mega (later Acquired by Compuware ) doing lots of work in debuggers.
Some interesting links from or involving Matt:
–jeroen
Posted in Borland Pascal , Debugging , Delphi , Delphi 1 , Development , Pascal , Software Development , Turbo Pascal | 2 Comments »
Posted by jpluimers on 2013/12/19
Almost a year ago, a thread on “premature Delphi optimization” came by on G+ about this code:
procedure ExchangeInteger(var AValue1, AValue2: Integer);
begin
AValue1 := AValue1 xor AValue2;
AValue2 := AValue1 xor AValue2;
AValue1 := AValue1 xor AValue2;
end;
I don’t think that was premature optimization, just some code from an old fart that had already been programming in the era where processors had reasons to use it :
Back then, the only efficient way to exchange two variables of the same data type was using the XOR swap algorithm .
Nowadays you have more options, and this is where the fun in that thread began, which I will show in a minute.
First a bit of history
The XOR swap algorithm was widely known in the 80s of last century and before, especially because the 6502 processor (oh the days of LISA Assembler ) was vastly popular, as was the Z80 . Together, they powered the majority of the home computers in the 70s and 80s .
Read the rest of this entry »
Posted in Borland Pascal , Delphi , Delphi 1 , Delphi 2005 , Delphi 2006 , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi 3 , Delphi 4 , Delphi 5 , Delphi 6 , Delphi 7 , Delphi 8 , Delphi x64 , Delphi XE , Delphi XE2 , Delphi XE3 , Development , History , Pascal , Software Development , Turbo Pascal , UCSD Pascal | 7 Comments »
Posted by jpluimers on 2013/12/12
StackOverflow user David Heffernan – Stack Overflow has an interesting take on Delphi postbuild events :
At the moment my actiona read:
if exist PostBuild.bat call PostBuild.bat $(Platform) $(Config) $(OutputDir)
And then the PostBuild.bat script calls a Python script so that I can write my scripts in a real language.
I actually impose the build actions in a shared option set that I reference from all of my projects. That way I enforce consistency and predictability.
I know others use tools like FinalBuilder but building is so important that I feel it’s worth my effort in rolling my own tooling.David Heffernan Feb 14 at 20:24
–jeroen
via: Delphi XE3: Problems with complex pre-build events – Stack Overflow .
Posted in Delphi , Delphi 2007 , Delphi 2009 , Delphi 2010 , Delphi XE , Delphi XE2 , Delphi XE3 , Development , Software Development | Leave a Comment »
Posted by jpluimers on 2013/12/09
The fact that the [WayBack ] 31-character limit on ClientDataSet field and index names is worse, but I just encountered this GetParamNameWODog function in a Delphi 3rd party library:
Learn more about bidirectional Unicode characters
function GetParamNameWODog(const ParamName: _string): _string;
begin
if (ParamName <> '') and (ParamName[1] = '@') then
Result := Copy(ParamName, 2, 1000)
else
Result := ParamName;
end;
What’s wrong with using the Length function here?
Yes, SQL Parameter names will probably less than 1000 characters, but then the 1000 literal should be a constant with a meaningful name, and the '@' literal should be too. Read the rest of this entry »
Posted in Delphi , Delphi XE3 , Development , QC , Software Development | Tagged: index names , Length function , meaningful name | 12 Comments »
The Wiert Corner - irregular stream of stuff 