Activity for Templatized C++ Command Line Parser

Manuel Schmitz posted a comment on merge request #10

Manuel Schmitz — Tue, 28 Apr 2026 08:42:05 -0000

We are using Meson as dependency manager for 20+ projects, most of them using TCLAP. So far, we have been supplying "wrap" patches for TCLAP to Meson's WrapDB. However, the quality standards are very high, and the process can take a long time. (E.g. test cases must be included) That is why I applied the latest patch to the TCLAP repo itself and initiated this merge request. It will simplify usage of TCLAP for all Meson users, and make maintenance of the corresponding WrapDB patches much easier for...

Daniel Aarno posted a comment on merge request #10

Daniel Aarno — Tue, 28 Apr 2026 06:07:37 -0000

Thanks for considering contributing! I'm hesitant to add this, in particular to 1.2 which is in maintanance mode and will only receive critical bug fixes. What is the reason you want Meson support? Given TCLAP is a headers-only library most users don't even bother to build and building and testing is mostly for TCLAP devs and folks that wan to install the documentation. Do you really need to build anything as part of the Meson's WrapDB project, or could you simply depend on the include/tclap/......

Manuel Schmitz posted a comment on merge request #10

Manuel Schmitz — Wed, 08 Apr 2026 09:23:12 -0000

To test this PR: Install Meson In the root directory of TCLAP, type meson setup builddir cd builddir meson compile meson test That should build TCLAP, the examples and run the tests.

Manuel Schmitz created merge request #10 on Code

Manuel Schmitz — Wed, 08 Apr 2026 09:20:42 -0000

Add meson.build for Meson build system support

Daniel Aarno modified ticket #28

Daniel Aarno — Tue, 11 Nov 2025 21:57:01 -0000

CmdLine::parse return behaviour

Daniel Aarno posted a comment on ticket #28

Daniel Aarno — Tue, 11 Nov 2025 21:56:35 -0000

Please take another look, "the exception handling is important in this context." doesn't make sense. Either the exception is hanled inside parse and thus it will exit on error, or it will be thrown to the caller that can handle it. So instead of "return true/false" it will return nothing on success or throw an exception on error - that you can catch and decide what to do with.

Carsten Bøgh Poulsen posted a comment on ticket #28

Carsten Bøgh Poulsen — Tue, 11 Nov 2025 10:32:28 -0000

Hi Daniel Thanks for getting back this fast 😊 No, I overall like the TCLAP behaviour. There is no need to disable any functionality; the exception handling is important in this context. The goal is to use TCLAP in ESP32/FreeRTOS projects, i.e. embedded systems. This implies that exit() is not an option because that will reset the embedded application. Rather than exit(), CmdLine shall return with zero when everything is successful, and non-zero if parsing was unsuccessful. Another thing is that TCLAP...

Daniel Aarno posted a comment on ticket #28

Daniel Aarno — Tue, 11 Nov 2025 09:52:51 -0000

It's a bit unclear what you are asking about and I haven't looked at th > 1MB zip file, but if I were to guess what you want to do is to disable exception handling in the CmdLine object. You can do that by calling p.setExceptionHandling(false); . That way the application will receive any exception thrown during parsing and can choose how to deal with it. https://tclap.sourceforge.net/html/classTCLAP_1_1CmdLine.html#aa02055d8f4864bfa9b505e2d26bbbd87 If this is specifically about --version you can...

Carsten Bøgh Poulsen posted a comment on ticket #28

Carsten Bøgh Poulsen — Sun, 09 Nov 2025 12:24:45 -0000

What I basically want is to be able to run the attached program to the end. The program is based on tclap 1.4 included as 'Additional Include Directories'. The program iterates 7 times with different args by calling tclap_main with different arguments. See stdio_testWin.cpp. It never comes past the third iteration because it asks for the --version which exits due to CmdLine exiting.

Carsten Bøgh Poulsen created ticket #28

Carsten Bøgh Poulsen — Sat, 08 Nov 2025 21:17:15 -0000

CmdLine::parse return behaviour

Daniel Aarno modified ticket #20

Daniel Aarno — Mon, 23 Jun 2025 08:40:26 -0000

Change ValuesConstraint constructor to take const&

Daniel Aarno posted a comment on ticket #20

Daniel Aarno — Mon, 23 Jun 2025 08:40:03 -0000

Thanks, comited in [9c695742a6536da4f0406176f91e8ada4644608b].

Daniel Aarno committed [9c6957] on Code

Daniel Aarno — Mon, 23 Jun 2025 08:37:54 -0000

Changes the ValuesConstraint ctor to take its argument as const.

Tibor Győri created ticket #20

Tibor Győri — Thu, 19 Jun 2025 21:08:21 -0000

Change ValuesConstraint constructor to take const&

Daniel Aarno posted a comment on ticket #27

Daniel Aarno — Tue, 17 Jun 2025 05:59:24 -0000

Patches against 1.4 are welcome.

Tibor Győri posted a comment on ticket #27

Tibor Győri — Sat, 14 Jun 2025 11:46:32 -0000

I guess I should have RTFM with more attention, because yes, that would work. I was searching the doxygen docs for something other than ValuesConstraint and couldn't find any. Still, I think that inequality and range constraints are both simple and common enough that it would be useful to have them ready-made, instead of asking the users to implement them themselves.

Mike Smoot posted a comment on ticket #27

Mike Smoot — Sat, 14 Jun 2025 02:53:33 -0000

Can't you do this with the Constraint class: https://tclap.sourceforge.net/manual.html#CONSTRAINT? Do you need something different than this?

Tibor Győri created ticket #27

Tibor Győri — Fri, 13 Jun 2025 14:53:17 -0000

Add inequality and range constraints

Daniel Aarno committed [4430e9] on Code

Daniel Aarno — Mon, 10 Feb 2025 05:33:44 -0000

Include required package-config files in the release

Templatized C++ Command Line Parser released /tclap-1.4.0-rc2.tar.bz2

Templatized C++ Command Line Parser — Mon, 10 Feb 2025 05:32:02 -0000

Templatized C++ Command Line Parser updated /README.txt

Templatized C++ Command Line Parser — Mon, 10 Feb 2025 04:45:02 -0000

Templatized C++ Command Line Parser released /tclap-1.4.0-rc2.tar.bz2

Templatized C++ Command Line Parser — Mon, 10 Feb 2025 04:38:02 -0000

Daniel Aarno posted a comment on discussion Help

Daniel Aarno — Mon, 10 Feb 2025 04:34:02 -0000

Thanks Lars, a new release has been cut as 1.4.0-rc2.

Lars Bilke posted a comment on discussion Help

Lars Bilke — Mon, 20 Jan 2025 07:50:42 -0000

Dear Daniel, I have created a package tclap for GNU Guix (https://issues.guix.gnu.org/75282) based on the 1.4.0-rc1 tag. But the problem is that the tag does not include this patch for bug 33. I would like to kindly ask you to create a new tag, maybe 1.4.0-rc2? That would be awesome! Thanks a lot! Lars

Daniel Aarno modified ticket #19

Daniel Aarno — Thu, 12 Dec 2024 11:42:17 -0000

Fix installation of doc files

Daniel Aarno posted a comment on ticket #19

Daniel Aarno — Thu, 12 Dec 2024 11:42:05 -0000

Thanks, patch tested and applied in: https://sourceforge.net/p/tclap/code/ci/81b3d2a0c47895c22e9bb8c577f5ab521f76e5d2/

Daniel Aarno committed [81b3d2] on Code

Daniel Aarno — Thu, 12 Dec 2024 11:40:11 -0000

Fix installation of doc files.

Daniel Aarno modified ticket #19

Daniel Aarno — Thu, 12 Dec 2024 11:32:09 -0000

Fix installation of doc files

Stephan van Veen created ticket #19

Stephan van Veen — Thu, 12 Dec 2024 11:14:58 -0000

Fix installation of doc files

Daniel Aarno modified ticket #18

Daniel Aarno — Wed, 12 Jun 2024 10:56:19 -0000

Minor fixes for clang-tidy warnings

Daniel Aarno committed [61cfae] on Code

Daniel Aarno — Tue, 11 Jun 2024 18:35:52 -0000

Make virtual functions calls from constructor explicit.

Daniel Aarno committed [e97774] on Code

Daniel Aarno — Tue, 11 Jun 2024 18:35:52 -0000

Add missing includes.

Jindrich Makovicka created ticket #18

Jindrich Makovicka — Mon, 10 Jun 2024 09:06:09 -0000

Minor fixes for clang-tidy warnings

Daniel Aarno posted a comment on merge request #9

Daniel Aarno — Thu, 25 May 2023 14:54:00 -0000

Thanks

Daniel Aarno merged merge request #9 on Code

Daniel Aarno — Thu, 25 May 2023 14:53:51 -0000

Allow const Contraints to be passed to Arg constructors

John Beard created merge request #9 on Code

John Beard — Thu, 25 May 2023 12:32:18 -0000

Allow const Contraints to be passed to Arg constructors

Daniel Aarno modified ticket #39

Daniel Aarno — Tue, 24 May 2022 19:40:52 -0000

UnlabeledValueArg visitor

Daniel Aarno posted a comment on ticket #39

Daniel Aarno — Tue, 24 May 2022 19:40:52 -0000

Fixed in [3feeb7b2499b37d9cb80890cadaf7c905a9a50c6] and [77561f5fab620e0857a04c240ae981f679449e15] respectively. Thanks for reporting.

Daniel Aarno committed [3feeb7]

Daniel Aarno — Tue, 24 May 2022 19:30:35 -0000

Add missing call to check visitor in Unlabeled args.

Daniel Aarno committed [77561f]

Daniel Aarno — Tue, 24 May 2022 19:25:47 -0000

Add missing call to check visitor in Unlabeled args.

Daniel Aarno modified ticket #39

Daniel Aarno — Tue, 24 May 2022 11:24:21 -0000

UnlabeledValueArg visitor

Daniel Aarno posted a comment on ticket #26

Daniel Aarno — Tue, 24 May 2022 11:22:11 -0000

Thanks for the feedback, and sorry for the delay - I was traveling. I responded to the OP on SO, but here it is for posterity: This isn't really part of the design of TCLAP. It's focused on providing "POSIX style" command line flags/arguments, which was the style of the day. It would probably not be too difficult to provide a git-style parser in the same spirit of TCLAP, but as of now TCLAP is probably to wrong tool for the job.

Federico Ciuffardi posted a comment on ticket #39

Federico Ciuffardi — Fri, 13 May 2022 06:47:36 -0000

Also happens in version 1.2.5

Federico Ciuffardi created ticket #26

Federico Ciuffardi — Fri, 13 May 2022 05:33:33 -0000

Subcommands

Federico Ciuffardi created ticket #39

Federico Ciuffardi — Fri, 13 May 2022 04:40:16 -0000

UnlabeledValueArg visitor

Daniel Aarno modified ticket #38

Daniel Aarno — Thu, 03 Mar 2022 09:44:02 -0000

string exception with short app name

David Okamoto posted a comment on ticket #38

David Okamoto — Wed, 02 Mar 2022 23:43:47 -0000

Yes, it's fixed in that commit.

Daniel Aarno modified ticket #38

Daniel Aarno — Wed, 02 Mar 2022 20:33:10 -0000

string exception with short app name

Daniel Aarno posted a comment on ticket #38

Daniel Aarno — Wed, 02 Mar 2022 20:32:13 -0000

I believe this was fixed about a year ago in [57a98f01bc2ac69812c703df4a99f060240c7214]. Can you try fetching the latest version and see if that fixes the problem?

David Okamoto created ticket #38

David Okamoto — Wed, 02 Mar 2022 16:33:21 -0000

string exception with short app name

David Okamoto posted a comment on ticket #34

David Okamoto — Fri, 11 Feb 2022 00:46:45 -0000

I think this may work in 1.4: In CmdLine.h, add a member variable (bool _optionalUnlabeled;), initialized to false in the constructor, then check in this method: inline void CmdLine::addToArgList(Arg *a) { for (ArgListIterator it = _argList.begin(); it != _argList.end(); it++) if (*a == *(*it)) throw(SpecificationException( "Argument with same flag/name already exists!", a->longID())); if (!a->hasLabel()) { if (_optionalUnlabeled) throw(SpecificationException( "You can't specify ANY Unlabeled Arg...

Daniel Aarno posted a comment on ticket #33

Daniel Aarno — Wed, 03 Nov 2021 08:51:37 -0000

Done, I've cut a new 1.2.5 release that should compile with GCC 11

Templatized C++ Command Line Parser released /README.txt

Templatized C++ Command Line Parser — Mon, 01 Nov 2021 15:38:05 -0000

Daniel Aarno committed [58c5c8]

Daniel Aarno — Mon, 01 Nov 2021 15:00:50 -0000

Cut the v1.2.5 release to fix GCC 11 build issues

Templatized C++ Command Line Parser released /tclap-1.2.5.tar.gz

Templatized C++ Command Line Parser — Mon, 01 Nov 2021 14:57:02 -0000

peckato1 posted a comment on ticket #33

peckato1 — Wed, 27 Oct 2021 17:54:18 -0000

Is it possible to perform a version bump in 1.2 branch so that distro packagers gets notified and package the new fixed version?

Daniel Aarno posted a comment on ticket #24

Daniel Aarno — Mon, 25 Oct 2021 06:49:43 -0000

I think the challenge here is that it adds complexity for a very particular use-case, so it would have to be demonstrated that 1) this is useful for (some portion of) TCLAP's intended audience and 2) the change is simple enough to warrant adding this for everyone + the maintainers. So if you can come up with some use-cases for (1) and send a patch for (2) I'll take a look at it.

KOLANICH posted a comment on ticket #24

KOLANICH — Sun, 24 Oct 2021 15:45:28 -0000

I'm not sure exactly what problem you experience, but TCLAP doesn't hold on to any of the argv's. In fact, all the parse(int argc, const char const argv) method does is to copy the argv into a temporary vector that is destroyed when the function exits. You can use CmdLine::parse(std::vector &args) instead of messing around with argc/argv. However, do note that this vector will be modified during parsing, so you probably want to make a copy of your input before calling parse - unless...

Daniel Aarno posted a comment on ticket #24

Daniel Aarno — Sun, 24 Oct 2021 10:26:43 -0000

I'm not sure exactly what problem you experience, but TCLAP doesn't hold on to any of the argv's. In fact, all the parse(int argc, const char *const *argv) method does is to copy the argv into a temporary vector that is destroyed when the function exits. inline void CmdLine::parse(int argc, const char *const *argv) { // this step is necessary so that we have easy access to // mutable strings. std::vector args; for (int i = 0; i < argc; i++) args.push_back(argv[i]); parse(args); } Two...

KOLANICH created ticket #24

KOLANICH — Thu, 21 Oct 2021 21:37:45 -0000

Create another interface for `parse`

Yuri posted a comment on ticket #35

Yuri — Sun, 19 Sep 2021 16:27:31 -0000

Still no information about what you are trying to do or why, Like I wrote above, this is for the port. The port does not need tests and examples to build unconditionally because this just wastes CPU time. Perhaps that will allow you to do what you want. I'll retest with the next release, thanks.

Daniel Aarno posted a comment on ticket #35

Daniel Aarno — Sun, 19 Sep 2021 08:56:16 -0000

Still no information about what you are trying to do or why, but there were options added to disable various parts of the build in [a6429a]. Perhaps that will allow you to do what you want.

Daniel Aarno modified ticket #37

Daniel Aarno — Sun, 19 Sep 2021 08:52:55 -0000

TCLAP won't build with GCC 11.1

Daniel Aarno posted a comment on ticket #37

Daniel Aarno — Sun, 19 Sep 2021 08:52:55 -0000

Reported and fixed in https://sourceforge.net/p/tclap/bugs/33

Nick Moss posted a comment on ticket #23

Nick Moss — Sat, 18 Sep 2021 10:19:13 -0000

Hi Daniel, Thanks for the reply. I've worked around the issue by disabling the default arguments, removing the ignore rest and replacing them using the results from the internationalisation library. The workaround is working fine so it's not a critical feature for me personally, I just thought the suggestion might be helpful.

Nick Moss created ticket #37

Nick Moss — Sat, 18 Sep 2021 10:08:44 -0000

TCLAP won't build with GCC 11.1

Yuri posted a comment on ticket #36

Yuri — Tue, 07 Sep 2021 16:13:12 -0000

In the build directory ctest fails: [yuri@yv /usr/ports/devel/tclap/work/tclap-1.4.0-rc1]$ CTEST_OUTPUT_ON_FAILURE=1 ctest . Test project /usr/ports/devel/tclap/work/tclap-1.4.0-rc1 Start 1: test1 1/112 Test #1: test1 ............................***Failed 0.13 sec Traceback (most recent call last): File "/disk-samsung/freebsd-ports/devel/tclap/work/tclap-1.4.0-rc1/tests/test1.py", line 5, in simple_test.test("test1", ["-r", "-n", "mike"]) File "/disk-samsung/freebsd-ports/devel/tclap/work/tclap-1.4.0-rc1/tests/simple_test.py",...

Yuri posted a comment on ticket #35

Yuri — Tue, 07 Sep 2021 16:00:37 -0000

There is a port for tclap. It builds a package that users then can use. There is no need to build tests and examples in the process of building a package.

Daniel Aarno modified ticket #23

Daniel Aarno — Tue, 07 Sep 2021 13:55:28 -0000

Support localization in TCLAP

Daniel Aarno posted a comment on ticket #23

Daniel Aarno — Tue, 07 Sep 2021 13:54:55 -0000

We should probably do a better job of localization in general - and not simply allow changing the default args. For now, I would suggest you simply change the text in the appropriate header (as this will likely take some time to get done).

Daniel Aarno posted a comment on ticket #35

Daniel Aarno — Tue, 07 Sep 2021 13:47:44 -0000

I do not know what "package build" means, please elaborate on what you are trying to do. Steps taken, expected result, and actual result. To use TCLAP you don't need to build anything, you can just include the headers.

Daniel Aarno modified ticket #36

Daniel Aarno — Tue, 07 Sep 2021 13:45:36 -0000

Tests fail: No such file or directory: '../examples/test22, etc

Daniel Aarno posted a comment on ticket #36

Daniel Aarno — Tue, 07 Sep 2021 13:45:07 -0000

Please run ctest from the build directory.

Yuri created ticket #36

Yuri — Tue, 07 Sep 2021 09:42:35 -0000

Tests fail: No such file or directory: '../examples/test22, etc

Yuri created ticket #35

Yuri — Thu, 02 Sep 2021 16:49:04 -0000

Please add configuration flag to disable building tests and examples

Nick Moss created ticket #23

Nick Moss — Wed, 01 Sep 2021 03:33:50 -0000

Allow replacing the descriptions of default arguments

Daniel Aarno merged merge request #8

Daniel Aarno — Wed, 18 Aug 2021 20:39:33 -0000

Fixed an error in CPack packaging

KOLANICH created merge request #8

KOLANICH — Wed, 18 Aug 2021 14:38:21 -0000

Fixed an error in CPack packaging

Alessandro Cossetto posted a comment on discussion Open Discussion

Alessandro Cossetto — Mon, 16 Aug 2021 16:55:51 -0000

Hello, I moved to UNICODE an old version of TCLAP, making it configurable to be ANSI or UNICODE. To do that I "simply" added a configuration file and I did a lot of find and replace, most of them automatically. To prevent conflits with the standard use of TCLAP, I renamed the namespace to TTCLAP. The configuration file contains a set of define: #if defined( TCLAP_WCHAR_T) #define _TT(x) L##x #define TTCLAP TWCLAP #define TTCHAR wchar_t #define STD_STRING std::wstring #define STD_COUT std::wcout #define...

Daniel Aarno modified a comment on ticket #34

Daniel Aarno — Mon, 16 Aug 2021 09:34:31 -0000

See also https://sourceforge.net/p/tclap/bugs/25/ for related issues with static variables. Fixing this in a backwards compatible way may be a bit tricky (because the Arg doesn't necessarily have access to the CmdLine object when it is created), and given that it's a pretty rare use-case (multiple CmdLine objects + Unlabeled arguments) I'm not convinced it's worth it. It should be fixed for 2.0 though. However, non-breaking patches would be welcomed.

Daniel Aarno posted a comment on ticket #34

Daniel Aarno — Mon, 16 Aug 2021 09:33:48 -0000

See also https://sourceforge.net/p/tclap/bugs/25/ for related issues with static variables. Fixing this in a backwards compatible way may be a bit tricky, and given that it's a pretty rare use-case (multiple CmdLine objects + Unlabeled arguments) I'm not convinced it's worth it. It should be fixed for 2.0 though. However, non-breaking patches would be welcomed.

KOLANICH created ticket #34

KOLANICH — Sun, 15 Aug 2021 21:45:09 -0000

Design around OptionalUnlabeledTracker is incorrect

KOLANICH posted a comment on ticket #28

KOLANICH — Sun, 15 Aug 2021 21:39:30 -0000

Multiple optional positional arguments may make sense. I.e. , and when a backend is not specified, use the default one. The easiest way to resolve ambiguity is to assumme that the args that have been supplied occupy the arguments going earlier.

Godeffroy Valet posted a comment on discussion Help

Godeffroy Valet — Thu, 22 Jul 2021 11:40:38 -0000

Oh, you are right. I am using the github mirror, and I was on the master branch which is not up to date. The 1.4 branch is.

Daniel Aarno posted a comment on discussion Help

Daniel Aarno — Thu, 22 Jul 2021 09:02:41 -0000

This was http://sourceforge.net/p/tclap/bugs/33, and should be fixed in [b8e464] for 1.4 and [52a118] for 1.2.

Godeffroy Valet posted a comment on discussion Help

Godeffroy Valet — Thu, 22 Jul 2021 08:56:34 -0000

The private copy constructor are declared like this : ValueArg(const ValueArg& rhs); MultiArg(const MultiArg& rhs); This does not compile with GCC 11, with C++20 enabled. They should be declared like this : ValueArg(const ValueArg& rhs); MultiArg(const MultiArg& rhs);

Daniel Aarno posted a comment on merge request #7

Daniel Aarno — Thu, 22 Jul 2021 07:07:34 -0000

Thanks!

Daniel Aarno merged merge request #7

Daniel Aarno — Thu, 22 Jul 2021 06:57:48 -0000

CMake improvements, mainly the ones implementing packaging

KOLANICH created merge request #7

KOLANICH — Wed, 21 Jul 2021 17:15:08 -0000

CMake improvements, mainly the ones implementing packaging

Daniel Aarno modified ticket #33

Daniel Aarno — Sun, 06 Jun 2021 17:02:56 -0000

tclap does not compile with g++ 11

Daniel Aarno posted a comment on ticket #33

Daniel Aarno — Sun, 06 Jun 2021 17:02:56 -0000

Fixed in [b8e464] for 1.4, and [52a118] for 1.2.

Daniel Aarno committed [35a173]

Daniel Aarno — Sun, 06 Jun 2021 16:59:20 -0000

Remove confusing statement about not supplying flag argument.

Daniel Aarno committed [b8e464]

Daniel Aarno — Sun, 06 Jun 2021 16:51:38 -0000

Fix compilation issue with C++20 and gcc-11.1

Daniel Aarno committed [52a118]

Daniel Aarno — Sun, 06 Jun 2021 15:33:49 -0000

Fix compilation issue with C++20 and gcc-11.1

Daniel Aarno modified ticket #33

Daniel Aarno — Sun, 06 Jun 2021 13:55:12 -0000

tclap does not compile with g++ 11

peckato1 created ticket #33

peckato1 — Fri, 28 May 2021 07:53:54 -0000

tclap does not compile with g++ 11

Daniel Aarno updated merge request #6

Daniel Aarno — Mon, 29 Mar 2021 21:09:56 -0000

Replaced simple_test.sh with a C++ wrapper.

Daniel Aarno committed [130458]

Daniel Aarno — Mon, 29 Mar 2021 20:53:00 -0000

Fix issues with TmpFile stream.