Yen-Chen Chen authored 2 months ago and Pradipta Samanta committed 2 months ago

## What is the bug
The C++ test code for `mo_util_stride` uses the experimental standard library.  
The filesystem standard library is automatically linked in C++17
## How do you fix it
Replace with the standard library


Merged-by: Pradipta Samanta <samanta@dkrz.de>
Changelog: bugfix