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Latest threads

1. JSON RPC on Mac M1 fails

   I don’t know where to start debugging this yet but I found that compiling for the aarch64 target now breaks my Pascal language server which uses JSON RPC. It breaks…

   HMHairy Pixels, Michael Van Canneyt3-10-2022 07:55 UTC
   3
2. Bit manipulation helpers

   I tried to use the bit helpers like https://www.freepascal.org/docs-html/rtl/sysutils/twordhelper.testbit.html but the bit to test is 0..15. I expected this to work…

   RGMRyan Joseph, gabor, Mattias Gaertner2-21-2022 12:53 UTC
   7
3. Caller agnostic procedure variables

   This has been a constant problem for me with FPC and wanted to make a formal post with code examples since I've only mentioned it in passing before. How can it be…

   RAMRyan Joseph, Adriaan van Os, Michael Van Canneyt2-16-2022 10:51 UTC
   25
4. Sorting a Stringlist on ValueFromIndex

   Is there a quick way to sort a stringlist on it's .ValueFromIndex field instead of it's .Names field? James

   JMJames Richters, Michael Van Canneyt2-15-2022 15:01 UTC
   3
5. Text Only printing on Windows.

   Way back in the old Turbo Pascal days, it was super simple to send text to a printer. I had written a program that printed text on labels in the order the labels were…

   JALJames Richters, Alexander Grotewohl, LacaK2-10-2022 12:15 UTC
   4
6. Issue with CSVDocument

   I have CSVDocument working, but something odd is happening. Everything is coming out as I expect, Except for the first cell.. it has some garbage at the beginning of it…

   JBMJames Richters, Bart, Michael Van Canneyt2-7-2022 21:29 UTC
   8
7. Putting Delimited text into a StringList

   I'm trying to get Comma Delimited Text from a CSV File created with Microsoft Excel into a string list, but I keep getting spaces as delimiter characters. How can I…

   JMTJames Richters, Michael Van Canneyt, Tomas Hajny2-7-2022 12:44 UTC
   5
8. $PASCALMAINNAME error with SDL/IPhone

   I thought I had this working some years ago but I'm confused again. :) When trying to use SDL on iPhone I include: {$PASCALMAINNAME SDL_main} But when I compile I get a…

   RJRyan Joseph, Jonas Maebe2-2-2022 14:43 UTC
   4
9. Macro expanding error

   I have this macro: {$define TCallback := TCallback2} which gives a long list of these errors. warning: Expanding of macros exceeds a depth of 16. What does this warning…

   RPSRyan Joseph, Pierre Muller, Sven Barth1-27-2022 12:27 UTC
   3
10. Strange behavior in generics.collections TDictionary

    Consider the following code: *** PROGRAM project1; {$mode objfpc} {$longstrings on} // see output below {$modeswitch advancedrecords} USES Variants,…

    TSThomas Kurz, Sven Barth1-26-2022 21:49 UTC
    1
11. Interface section overload procedures are all public

    // making only one procedure bugtest public in the interface section // makes all other bugtest procedures public as well! // Lazarus 2.0.0+dfsg-2 // FPC-Version: 3.0.4…

    RBSRainer Stratmann, Bart, Sven Barth1-23-2022 23:08 UTC
    2
12. Case statement for class introspection

    I saw a new syntax in Swift which I thought was clever and fits a pattern I've seen before. Basically it's a case statement for class types which lets you branch…

    RMMRyan Joseph, Marco van de Voort, Michael Van Canneyt1-20-2022 13:53 UTC
    30
13. Windows Volume Control

    Are there functions to check the current volume level and to set the volume with just FPC (not Lazarus) on Windows 10? All I need is the master system volume, not any of…

    JMJames Richters, Marc Weustink1-18-2022 09:37 UTC
    1
14. StrToInt is using ShortString buffer?

    Hello. As I see in the commit https://gitlab.com/freepascal.org/fpc/source/-/commit/beecbf1581a986f544fde77aa428e05c21a35f6f StrToInt always uses ShortString buffer:…

    ABBAlexey Tor., Bart, Benito van der Zander1-14-2022 12:10 UTC
    15
15. Crash on Windows for Aarch64 target

    Some time ago it was announced an experimental support for Windows on Aarch64 (namely in this post…

    VMSVolo Zyko, Marc Weustink, Sven Barth1-14-2022 09:00 UTC
    3
16. Where can I find working code for xidel and dependencies

    I have been adviced to use xidel to analyze the content of websites, so when searcing for it I found that it is a FreePascal utility with the sources on GitHub.…

    BBBo Berglund, Benito van der Zander1-11-2022 12:09 UTC
    2
17. freepascal.org SSL_ERROR_BAD_CERT_DOMAIN

    https://freepascal.org/

    RDDRainer Stratmann, Dimitrios Chr. Ioannidis, Dmitry Boyarintsev1-10-2022 16:56 UTC
    15
18. FPF 3.04 and Synapse

    Is Synapse compatible with FPC 3.04  and which link should be used for the Synapse code as there are several ? Thanks Brian

    VMVern, Michael Van Canneyt1-7-2022 07:45 UTC
    1
19. Lazarus Release 2.2

    The Lazarus team is glad to announce the release of Lazarus 2.2. This release was built with FPC 3.2.2. Here is the list of changes for Lazarus and Free Pascal:…

    MMattias Gaertner1-5-2022 22:42 UTC
    0
20. FPC Backtrace

    I'm curious if there is some way, perhaps with some directive or something to force a debug backtrace to happen, but without an error. I have a function that is getting…

    JCGJames Richters, Christo Crause, Graeme Geldenhuys1-4-2022 18:27 UTC
    5
21. FPC and WebAssembly

    I'm glad to anncounce that FPC now covers working with webassembly in the browser. Because pictures say more than a thousand words, 3 demos: A modest "hello, world"…

    MDJMichael Van Canneyt, duilio foschi, Jean SUZINEAU1-2-2022 11:21 UTC
    7
22. More Webassembly...

    I've just committed to the FPC git repo the wasmtime unit. This unit can be used to load and use the wasmtime library. Using this library you can compile, load and run…

    MMichael Van Canneyt12-30-2021 15:39 UTC
    0
23. Improved FPC JSON-RPC support

    Thanks to the magic of RTTI and Invoke(), creating a JSON-RPC server has just become significantly easier ! Given an interface definition: IMyOtherInterface = interface…

    MDGMichael Van Canneyt, Don Duvall, Graeme Geldenhuys12-29-2021 14:51 UTC
    14
24. How to list IP and MAC of network adapters on Windows?

    Is there a way to enumerate the active adapters on a Windows computer with their IPv4 and MAC addresses? I am trying to convert a Linux reporting script to Windows, but…

    BJMBo Berglund, James Richters, Marco van de Voort12-29-2021 02:34 UTC
    9
25. Creating a shared library (Linux)

    https://www.freepascal.org/docs-html/prog/progse55.html When analysing the mylib.o output file under Linux with nm -D mylib.o the answer is: no symbols. I have an export…

    RRainer Stratmann12-28-2021 23:54 UTC
    1
26. Lazarus server maintenance

    On Monday 27 December 9.00 CET (8.00 GMT) the Lazarus server will be down for maintenance. This affects the following services: * Lazarus website * Lazarus mailinglists…

    MMarc Weustink12-28-2021 08:41 UTC
    1
27. {$include %dateyear%}

    I'm reading https://www.freepascal.org/docs-html/prog/progsu41.html It seems to me that {$include %dateyear%} , {$include %datemonthr%}  and {$include %dateday%}  are…

    ICJIl Grande Beppe, Ched, James Richters12-26-2021 16:24 UTC
    5
28. 64 bit Linux syscall from 32 bit fpc program

    Is it possible to make a direct 64 bit Linux syscall from a 32 bit fpc programm?

    RSRainer Stratmann, Sven Barth12-24-2021 22:28 UTC
    2
29. Not available duties

    I got a message from UPS this morning stating "! Duties, taxes, and fees totaling NaN are due for this delivery." Oops, I don't hope I will ever get a message from UPS…

    ABAdriaan van Os, Bart12-24-2021 17:08 UTC
    1
30. Is there a range limitation for the in operator?

    I have been debugging a file analyzer program which is supposed to show a record if one clicks in the hex representation of the binary file content. I have a function…

    BSBo Berglund, Sven Barth12-22-2021 18:30 UTC
    2

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