Uncovered default switch "branch" (vs unreachable default switch code) in gcov coverage report

[astrogeco]

Is your feature request related to a problem? Please describe.
gcov reports missing branch coverage for the default case of a switch statement. Numerous examples in cFE where there is no default case and/or it's impossible to reach (all cases are handled explicitly).

Describe the solution you'd like
At minimum document this behavior in the coverage report. Would be nice if there was an option or alternative to get gcov to not report impossible cases as uncovered, or post-process the report to remove.

Describe alternatives you've considered
None

Additional context
cfe_sb_api.c - 10 uncovered branches
cfe_sb_task.c - 2 uncovered branches

Requester Info
Jacob Hageman - NASA/GSFC

[astrogeco]

@skliper I added this here but we can move it to cFE if its more appropriate to have there

[avan989]

Currently tracking issue in:
10 in cfe_sb_api.c
2 in cfe_sb_task.c

PendingEventId is always set if "Status" is not CFE_SUCCESS. There is no switch case that is "default" although I do recommend having a default case in the switch statement for "defense" against future code change, just in case someone forgets to add an event message. Code coverage is not possible.