* Promote some GCC warnings back to errors and deal with build breakage.
I tested configuring and building with GCC 8.3.0 with
`.../configure --prefix=$HOME/wrk/install/manydsets --enable-build-mode=production --enable-symbols=-gdwarf-4 --enable-warnings-as-errors --enable-java --enable-hl --enable-fortran --enable-cxx --enable-mirror-vfd --enable-ros3-vfd --enable-direct-vfd`
and with the same options but `--enable-build-mode=debug`.
* Promote -Wrestrict to -Werror=restrict to help catch overlapping
arguments to strcpy, memcpy, et cetera, at compile time.
* NFCI: sort lines.
* Committing clang-format changes
* NFCI: remove whitespace at EOL.
* Re-use temporary variable `shared`.
* Remove merge oopsie.
* Mention that no op codes are understood per review comment.
* Change this back to the develop branch's way, since this change isn't
integral to the PR.
* Committing clang-format changes
* NFCI: reduce differences with `develop` branch in the hope that that
also kicks off CI.
Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Dana Robinson <43805+derobins@users.noreply.github.com>
-Wimplicit-fallthrough=3 is added by -Wextra, which we already set.
Bumping the warning level only changes how fall-through comments are
parsed, with level 5 turning off fall-through comments entirely.
This is unnecessary and results in having to do extra work to squash
warnings when included external code uses fall-through.
This change also adds /* FALLTHROUGH */ comments where
H5_ATTR_FALLTHROUGH is used so compilers that don't use attributes
but do respect fall-through comments don't raise spurious warnings.
