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No response

Operating System:

Ubuntu

ROS version or commit hash:

Rolling (latest)

RMW implementation (if applicable):

No response

RMW Configuration (if applicable):

No response

Client library (if applicable):

No response

'ros2 doctor --report' output

No response

Steps to reproduce issue

1. Build tracetools using the current rolling branch with clang and libc++:

   $ colcon build --packages-up-to tracetools --mixin clang-libcxx --cmake-args -DCMAKE_BUILD_TYPE=Debug
   

   • See the build command in the CI job here: https://ci.ros2.org/view/nightly/job/nightly_linux_clang_libcxx/1860/consoleFull#console-section-12.
     • The latest nightly_linux_clang_libcxx job is: https://ci.ros2.org/view/nightly/job/nightly_linux_clang_libcxx/2260/. You can see here that there are still warnings in tracetools: https://ci.ros2.org/view/nightly/job/nightly_linux_clang_libcxx/2260/clang/
   • This section in the ROS 2 docs also explains how to build with clang, but it doesn't cover building with libc++: https://docs.ros.org/en/rolling/Installation/Alternatives/Ubuntu-Development-Setup.html#clang.
2. Check the build output for tracetools and see if warnings are reported

Expected behavior

No issues/warnings

Actual behavior

There are some issues reported by clang, see #115.

Some of those issues may have been fixed since that PR was opened over a year ago.

Additional information

After confirming that there are warnings, try to fix them. Look at the changes in #115.

After fixing the warnings, re-build and confirm that the warnings disappeared.