Documentation for memory.h (#371)

[Testspieler09]

I added documentation for all 4 private functions of memory.h. I hope this helps and would be thankful for any feedback

Referring to issue: #371

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.53%. Comparing base (1bd3333) to head (b55ff89).
Report is 2 commits behind head on latest.

Additional details and impacted files

@@            Coverage Diff             @@
##           latest     #461      +/-   ##
==========================================
+ Coverage   90.35%   90.53%   +0.18%     
==========================================
  Files          47       47              
  Lines        4374     4374              
  Branches      586      586              
==========================================
+ Hits         3952     3960       +8     
+ Misses        287      280       -7     
+ Partials      135      134       -1     

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[goatshriek]

At a glance this looks good! You can disregard coverage and the codecov failures for this - they aren't caused by your change. When I have a little more time available I'll give this a more thorough review and then either request changes or merge it in.

[goatshriek]

Excellent work on these, particularly in considering the POSIX safety concepts and documenting them appropriately. This documentation is much appreciated!