Story Category: Software Development

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Delphi: EInvalidOp exception, might just mean you have a use-after free scenario, or an out-of-bounds value

jpluimers jpluimers Quite sometime I was researching spurious exceptions in a Delphi application, then finally replicated them in a unit test suite. One of them was occurring almost all of the time: EInvalidOp. It is one of… … Read more 4 years ago in Delphi, Development, Software Development 0

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FastMM4: turn warnings W1047 and W1048 off

jpluimers jpluimers Delphi 7 introduced introduced warnings for unsafe constructs like W1047 and W1048 so you could prepare your code for the first Delphi .NET compilers . The oldest online documentation on this is in Delphi 2007: [WayBack]… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development 0

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file – String format procedure similar to writeln – Stack Overflow

jpluimers jpluimers Cool Format feature from [WayBack] file – String format procedure similar to writeln – Stack Overflow: The cool thing about using Format is that you use for Format Strings not only to parameterize things like width and precision inside that Format String, but also… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development 0

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Delphi 10.2 Tokyo introduced a “with” warning: for most “with” statements, W1048 is raised ([RSP-17326] with statements generate W1048 unsafe typecast warning – Embarcadero Technologies)

jpluimers jpluimers A cool feature introduced in Delphi 10.2 Tokyo: often [RSP-17326] with statements generate W1048 unsafe typecast warning – Embarcadero Technologies. Only 2 upvotes, so I assume the “anti with camp” people are finally winning (:… … Read more 4 years ago in Delphi, Delphi 10.2 Tokyo (Godzilla), Development, Software Development 0

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Little Delphi tip: after “Build the current build group”, do not be surprised debugging fails

jpluimers jpluimers The Delphi Build groups are great for quickly building a lot of projects in your project group with their various build configuration. One very important tip though: it builds in DEBUG, then RELEASE mode, then… … Read more 4 years ago in Delphi, Development, Software Development 0

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Delphi: migrating applications + DLLs that use ShareMem to using FastMM

jpluimers jpluimers Notes to myself: I bumped into some legacy code with a windows process and DLLs both using ShareMem (now System.ShareMem) so that strings could be shared between the instances. There were lots of memory leaks,… … Read more 4 years ago in Delphi, Development, FastMM, Software Development 0

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Since when is the PLATFORMTARGETS resource included in non-package binaries?

jpluimers jpluimers A while ago, I discovered that most (if not all) Delphi compiled Windows binaries contain the PLATFORMTARGETS resource. This is a resource introduced in Delphi XE2 meant to be included in package binaries only. The… … Read more 4 years ago in Delphi, Development, Software Development 0

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Spring4D conference materials

jpluimers jpluimers From a while ago, but still very relevant: Materials [WayBack] The Delphi Geek: Spring4D European Conference 2019 sessions [WayBack] The Delphi Geek: Presentations [WayBack] Spring4D Conference: Slides and Materials: Spring4D European Conference 2018 – Bergamo… … Read more 4 years ago in Delphi, Development, Software Development 0

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“F2063 Could not compile used unit” can also mean you have a DCU file of that unit for the wrong compiler version

jpluimers jpluimers It took me a file to figure out another cause for “F2063 Could not compile used unit“, this was for a 3rd party library that had parts of the units as source files, but other… … Read more 4 years ago in Delphi, Development, Software Development 0