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Posted by jpluimers on 2019/03/27
When I ever go and use the Spring4D activator, these are some URLs I need to re-read:
IInvokable over IInterface to enfore using RTTI [Archive.is] The Dynamic Abstract Factory is so useful but it’s like magic to me! – Google Groups
–jeroen
Posted in Delphi, Development, Software Development, Spring4D | Leave a Comment »
Posted by jpluimers on 2019/03/19
Odd, the [WayBack/Archive.is] Delphi Intrinsic Routines – RAD Studio indicates quite a few compiler intrinsics are not available on Windows.
I wonder if this list is correct:
Routine Description DCC32 DCC64 DCCOSX DCCAARM DCCIOSARM DCCIOSARM64 DCCIOS32 System.AtomicCmpExchange AtomicCmpExchange is used for comparing and exchanging memory values. System.AtomicDecrement AtomicDecrement is used for decrementing memory values. System.AtomicExchange AtomicExchange is used for exchanging memory values. System.AtomicIncrement AtomicIncrement is used for incrementing memory values. System.BuiltInArcTan Calculates the arctangent of a given number. System.BuiltInArcTan2 Calculates the arctangent angle and quadrant of a given number. System.BuiltInCos Calculates the cosine of an angle. System.BuiltInLn Calculates the natural logarithm of a real expression. System.BuiltInLnXPlus1 Calculates the natural logarithm of (X+1). System.BuiltInLog10 Calculates log base 10. System.BuiltInLog2 Calculates log base 2. System.BuiltInSin Calculates the sine of the angle. System.BuiltInSqrt Calculates the square root of X. System.BuiltInTan Calculates the tangent of X.
Especially since this compiles fine with the DCC32 compiler:
program CompilerIntrinsicsConsoleProject; {$APPTYPE CONSOLE} {$R *.res} var I, J, K: Integer; begin System.AtomicCmpExchange(I, J, K); System.AtomicDecrement(I); System.AtomicExchange(I, J); System.AtomicIncrement(J); end.
–jeroen
Posted in Delphi, Delphi 10.3 Rio (Carnival), Development, Software Development | 3 Comments »
Posted by jpluimers on 2019/03/14
From a while ago [WayBack] delphi – Why was TDataSource created originally? – Stack Overflow
It is all about decoupling and indirection.
And with TDataSource there are two kinds of them:
- Decoupling the master detail relations (TDataSource is in the same module as the TDataSets that are being bound; the detail TDataSet references the master TDataSet by pointing its’ MasterSource property to the TDataSource that points to the master TDataSet)
- Decoupling the UI from the business layer (TDataSets are in a DataModule; TDataSource is on the Form/Frame which contains your UI controls, UI controls reference their DataSourceproperty).
Since many components can point to the same DataSource, you can quickly switch which underlying TDataSet they use by just flipping one TDataSource.DataSet property.
–jeroen
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »
Posted by jpluimers on 2019/03/12
For my link archige: [WayBack] Classic compiler (Win32) strings double-free crash because of error in reference-counting. Tested with XE2 and 10.1 Berlin Test applications: https://g… – Arioch The – Google+
–jeroen
Posted in Delphi, Development, Software Development | 3 Comments »
Posted by jpluimers on 2019/03/12
On my list of things to install soon IDE Fix Pack 6.4 and 6.4.1:
Technically, there is 6.4 that works in Delphi 10.3 Rio Update 1, but it is better to install 6.4.1 as it works with 10.3 and 10.3.1:
The dependencies file looks interesting for good uses list optimisation, given that you compile with all conditional define permutations:
There is a ton of changes, of which I like the bold ones most:
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2019/03/06
Delphi and FPC have different language boundaries, so it is always good to read a thread discussing how to get near-the-edge cases work in both.
This case is about Smart Pointers (here called auto pointers, maybe because auto_ptr is what they used to be called in C++): [WayBack] Hi all, I am trying to make a certain piece of code cross compile between Delphi and FPC. On FPC, it compiles fine but on Delphi I get a [dcc32 Error] P… – Ugochukwu Mmaduekwe – Google+
In the end if comes down to that Delphi does not allow forward-declaration of records (it does for interfaces and classes), but that you do not need a __PAutoPtr_T = ^__TAutoPtr_T, because you can use ^__TAutoPtr_T in parameters.
In Spring4D, they are called Shared/IShared/TShared, see my comment:
Note that since these are reference counted, you might want to call them
shared_ptr. If you enforce the single-instance behaviour, observe that in C++ they are now calleduniqe_ptr.In Spring4D this rename has already taken place a while ago: https://bitbucket.org/sglienke/spring4d/commits/e252b81fd3788cf5b82588721f68d00c892deb87
–jeroen
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | 2 Comments »
Posted by jpluimers on 2019/02/28
For my link archive, as a reminder to check the Sistel JIRA tool, which is an IDE like tool for JIRA: [WayBack] Business Process Studio for JIRA | Sistel
He has some very interesting posts at [Archive.is] Jose León – Medium.
Via:
–jeroen
Posted in Delphi, Development, Issue/Bug tracking, JIRA, Software Development | Leave a Comment »
Posted by jpluimers on 2019/02/28
It look likes sourceforge.net/p/radstudiodemos/code/HEAD/tree/branches/RADStudio_Rio is gone (though docwiki has more than a couple 100 mentions of [Archive.is] “radstudiodemos” and [Archive.is] “RADStudio_Rio”), for instance here:
C:\Users\Public\Documents\Embarcadero\Studio\\Samples).C:\Users\Public\Documents\Embarcadero\Studio\20.0\Samples).I have not seen an announcement of this branch disappearing, so I wonder what happened and why.
sourceforge.net/p/radstudiodemos/code/HEAD/tree/branches was a great resource, as it had a consistent history from Delphi XE through 10.2 Tokyo (apparently there used to be 10.3 Rio too) that made it very easy to see the differences in various versions, giving a great indication of new features and differences in products, often before the docwiki got updated to reflect them.
SVN not being centralised, now makes this chain break for Delphi 10.3 Rio, which is quite a pity.
If anyone has the complete SVN history including Delphi 10.3 RIO, please let me know: Delphi 10.3 Rio Update 1 now finally being out likely means many more people start using it as initial issues found in the public have been fleshed out.
It would have been so much more convenient to have for instance a git converted repository keeping all the history and including Delphi 10.3 Rio somewhere.
If anyone has that, I’d be interested in that too. One can dream, right?
I bumped into this via a link pointing to URLs having these fragments in them, which are now invalid:
This means I have to fix some 150 links later: [Archive.is] site:wiert.me “radstudiodemos” – Google Search.
It looks like radstudiodemos.svn.sourceforge.net/svnroot/radstudiodemos/trunk got replaced with sourceforge.net/p/radstudiodemos/code/HEAD/tree/trunk and https://svn.code.sf.net/p/radstudiodemos/code/trunk, which should give me a head-starting on how to fix the links.
–jeroen
Posted in Delphi, Delphi 10.3 Rio (Carnival), Development, Software Development | 1 Comment »
Posted by jpluimers on 2019/02/27
There are six variations; only one can be active at a time:
via: I cannot get MS Office sample automation server wrapper components. Neither of… [WayBack]
More in depth article explaining all the nitty gritty details: There Can Only Be One! Handling Different Versions of Design Packages inside the IDE | The Art of Delphi Programming [WayBack]
–jeroen
Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2019/02/27
Seems I forgot to push the “publish” button on this 2 years ago (:
Did you know?
10.2 Tokyo has introduced 3 new warnings for Delphi compilers:
Implicit integer cast with potential data loss from ‘<from>’ to ‘<to>’ W1071 IMPLICIT_INTEGER_CAST_LOSSDefault: Off Implicit conversion may lose significant digits from ‘<from>’ to ‘<to>’ W1072 IMPLICIT_CONVERSION_LOSSDefault: Off Combining signed type and unsigned 64-bit type – treated as an unsigned type W1073 COMBINING_SIGNED_UNSIGNED64Default: On
Source: [WayBack] Did you know? 10.2 Tokyo has introduced 3 new warnings for Delphi compilers:…
Comment:
Jeroen Wiert Pluimers: Time to update marc.durdin.net – Delphi XE2’s hidden hints and warnings options | Marc Durdin’s Blog (:+Marc Durdin do you still do Delphi?
they were initially documented in less detail than the above table, and it keeps surprising me that you need to read employee blogs instead of the docwiki to keep current: [WayBack] New Warnings, Illegal Casts, and other Delphi compiler changes in 10.2 Tokyo.
Since then, documentation has improved to this:
Posted in Delphi, Development, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 