C++ argument parser library
This project builds and defines the build2 package for args, which is a simple, small, flexible, single-header C++11 argument parsing library.

Usage
Make sure to add the stable section of the cppget.org
repository to your project's repositories.manifest
to be able to fetch this package.
:
role: prerequisite
location: https://pkg.cppget.org/1/stable
# trust: ...
If the stable section of cppget.org
is not an option then add this Git repository itself instead as a prerequisite.
:
role: prerequisite
location: https://github.com/build2-packaging/args.git
Add the respective dependency in your project's manifest
file to make the package available for import.
depends: args ^6.4.7
The library can be imported by the following declaration in a buildfile
.
import args = args%lib{args}
Configuration
There are no configuration options available.
Issues
Currently, there are no known issues.
Contributing
Thank you in advance for your help and contribution to keep this package up-to-date.
Please, file an issue on GitHub for questions, bug reports, or to recommend updating the package version.
If you're making a pull request to fix bugs or update the package version yourself, refer to the build2
Packaging Guidelines.
Tests
Reviews
Builds
toolchain |
public-0.17.0 |
target |
x86_64-freebsd14.1 |
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freebsd_14-clang_18-O3 |
timestamp |
2025-10-14 12:08:34 UTC (01:29:02 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14-static_O3 |
timestamp |
2025-10-14 06:36:21 UTC (07:01:14 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14-ndebug_O3 |
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2025-10-14 06:33:56 UTC (07:03:40 hours ago) |
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public-0.17.0 |
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linux_debian_12-gcc_14-O3 |
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2025-10-14 06:31:30 UTC (07:06:06 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14 |
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2025-10-14 06:29:05 UTC (07:08:31 hours ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14-static_O3 |
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2025-10-13 14:53:45 UTC (22:43:51 hours ago) |
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public-0.17.0 |
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x86_64-w64-mingw32 |
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windows_10-gcc_13.2_mingw_w64-static_O2 |
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2025-10-13 14:50:10 UTC (22:47:25 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18_libc++-static_O3 |
timestamp |
2025-10-13 14:49:44 UTC (22:47:51 hours ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14-ndebug_O3 |
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2025-10-13 14:49:03 UTC (22:48:33 hours ago) |
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public-0.17.0 |
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x86_64-w64-mingw32 |
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windows_10-gcc_13.2_mingw_w64-O2 |
timestamp |
2025-10-13 14:47:57 UTC (22:49:39 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18_libc++-O3 |
timestamp |
2025-10-13 14:47:20 UTC (22:50:16 hours ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-clang_18_llvm_msvc_17.10-static_O2 |
timestamp |
2025-10-13 14:47:10 UTC (22:50:25 hours ago) |
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toolchain |
public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.8-O2 |
timestamp |
2025-10-13 14:46:52 UTC (22:50:43 hours ago) |
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toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-gcc_14-O3 |
timestamp |
2025-10-13 14:46:34 UTC (22:51:02 hours ago) |
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toolchain |
public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-msvc_17.8-static_O2 |
timestamp |
2025-10-13 14:46:32 UTC (22:51:04 hours ago) |
result |
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toolchain |
public-0.17.0 |
target |
aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_18_libc++ |
timestamp |
2025-10-13 14:45:50 UTC (22:51:46 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-msvc_17.10-O2 |
timestamp |
2025-10-13 14:45:46 UTC (22:51:50 hours ago) |
result |
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toolchain |
public-0.17.0 |
target |
x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-msvc_17.10-static_O2 |
timestamp |
2025-10-13 14:45:45 UTC (22:51:51 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-clang_18_llvm_msvc_17.10-O2 |
timestamp |
2025-10-13 14:45:16 UTC (22:52:19 hours ago) |
result |
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toolchain |
public-0.17.0 |
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aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_18-static_O3 |
timestamp |
2025-10-13 14:44:42 UTC (22:52:54 hours ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
tgt config |
linux_ubuntu_24.04-gcc_13-bindist |
timestamp |
2025-10-13 14:44:23 UTC (22:53:13 hours ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_fedora_40-gcc_14-bindist |
timestamp |
2025-10-13 14:44:18 UTC (22:53:17 hours ago) |
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toolchain |
public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.8 |
timestamp |
2025-10-13 14:44:13 UTC (22:53:22 hours ago) |
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toolchain |
public-0.17.0 |
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aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_18-O3 |
timestamp |
2025-10-13 14:43:17 UTC (22:54:19 hours ago) |
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toolchain |
public-0.17.0 |
target |
x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-clang_18_llvm_msvc_17.10 |
timestamp |
2025-10-13 14:43:06 UTC (22:54:29 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-clang_17_msvc_msvc_17.10 |
timestamp |
2025-10-13 14:43:06 UTC (22:54:30 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-gcc_12-bindist |
timestamp |
2025-10-13 14:43:01 UTC (22:54:35 hours ago) |
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toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-gcc_14 |
timestamp |
2025-10-13 14:42:59 UTC (22:54:37 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-microsoft-win32-msvc14.3 |
tgt config |
windows_10-msvc_17.10 |
timestamp |
2025-10-13 14:42:49 UTC (22:54:47 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-freebsd14.1 |
tgt config |
freebsd_14-clang_18-static_O3 |
timestamp |
2025-10-13 14:41:44 UTC (22:55:51 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
aarch64-linux-gnu |
tgt config |
linux_debian_12-gcc_13 |
timestamp |
2025-10-13 14:41:37 UTC (22:55:59 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-freebsd13.3 |
tgt config |
freebsd_13-clang_17 |
timestamp |
2025-10-13 14:41:05 UTC (22:56:31 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_17_libc++ |
timestamp |
2025-10-13 14:40:48 UTC (22:56:47 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_18 |
timestamp |
2025-10-13 14:40:46 UTC (22:56:50 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_17_libc++ |
timestamp |
2025-10-13 14:40:43 UTC (22:56:53 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-gcc_13.1 |
timestamp |
2025-10-13 14:40:39 UTC (22:56:57 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
aarch64-linux-gnu |
tgt config |
linux_debian_12-clang_17 |
timestamp |
2025-10-13 14:40:34 UTC (22:57:02 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-freebsd14.1 |
tgt config |
freebsd_14-clang_18 |
timestamp |
2025-10-13 14:40:33 UTC (22:57:03 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_17 |
timestamp |
2025-10-13 14:39:54 UTC (22:57:42 hours ago) |
result |
success | log | rebuild |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18-static_O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18_libc++ |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18_libc++-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_debian_12-clang_18_libc++-static_O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_fedora_39-gcc_13-bindist |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin22.5.0 |
tgt config |
macos_13-clang_15.0 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-clang_15.0 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-clang_15.0-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-clang_15.0-static_O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-gcc_14_homebrew |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-gcc_14_homebrew-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin23.5.0 |
tgt config |
macos_14-gcc_14_homebrew-static_O3 |
result |
unbuilt |
target |
x86_64-w64-mingw32 |
tgt config |
windows_10-gcc_13.2_mingw_w64 |
result |
excluded (unoptimized compilation with MinGW on Windows gets stuck) |
Changes
* 6.0.0
Change Reader to functor type, breaking change.
Change Reader functor to allow any return type, but specifically need bool-testable return for NOEXCEPT use.
Change List and Map templates into template templates to enforce proper type use and to clean up user template invocations (i.e. `args::ValueFlagList<std::string, std::unordered_set<std::string>>` becomes `args::ValueFlagList<std::string, std::unordered_set>`, also breaking change.
* 5.0.0
Implemented proper subparsers.
Added better C++11 style.
Improved documentation.
* 4.0.0
Changed all wording:
ArgFlag -> ValueFlag
Counter -> CounterFlag
PosArg -> Positional
Argument now solely refers to command line arguments.
Value refers to the argument that flags or positionals can take and store.
Positional is a positional option, which contains a value.
Option refers to flags and positionals, which can contain values.