[#490] bugfix in cxx slice api #514

16 / 16 tasks completed

All tasks have been completed

Task	Status
Proper pointer const-ness when returning `ImmutableSlice` in non-mut `payload()` method	Incomplete
Add sensible notes for the reviewer	Completed
PR title is short, expressive and meaningful	Completed
Relevant issues are linked in the References section	Completed
Every source code file has a copyright header with `SPDX-License-Identifier: Apache-2.0 OR MIT`	Completed
Branch follows the naming format (`iox2-123-introduce-posix-ipc-example`)	Completed
Commit messages have the issue ID (`[#123] Add posix ipc example`)	Completed
Commit author matches [Eclipse Contributor Agreement][eca] (and ECA is signed)	Completed
Tests follow the [best practice for testing][testing]	Completed
Changelog updated [in the unreleased section][changelog] including API breaking changes	Completed
Assign PR to reviewer	Completed
All checks have passed (except `task-list-completed`)	Completed
Commits are properly organized and messages are according to the guideline	Completed
Unit tests have been written for new behavior	Completed
Public API is documented	Completed
PR title describes the changes	Completed
All open points are addressed and tracked via issues	Completed