Including
 - usage of static_cast instead of c-style cast,
 - single variable declaration per line,
 - removing const from return types
 - omit unnecessary string to char* conversions,

The used clang-tidy checks are:
google-readability-casting,
readability-const-return-type,
readability-container-size-empty,
readability-delete-null-pointer,
readability-deleted-default,
readability-else-after-return,
readability-function-size,
readability-identifier-naming,
readability-inconsistent-declaration-parameter-name,
readability-isolate-declaration,
readability-misleading-indentation,
readability-misplaced-array-index,
readability-named-parameter,
readability-redundant-*,
readability-simplify-*,
readability-static-accessed-through-instance,
readability-static-definition-in-anonymous-namespace,
readability-string-compare,
readability-uniqueptr-delete-release

Also remove unnecessary initialization of pos_beg.

Only in ERR/WARN/INFO/DBUG/OGS_FATAL and similar, not in
formatted output like xml files.

Clang format run on near-the-header lines.

Happy New Year

Especially on iterator types and 'new' allocations.

Lars Bilke authored 9 years ago and Dmitri Naumov committed 9 years ago

TODO:

- FeflowInterface.cpp -> use property groups
- TetgenInterface     -> not checked yet
- LayeredVolume.cpp   -> see TODO

Also remove unused includes.

Also remove the header StringTools.h everywhere.
Add a previously missing sstream include in DateTools.cpp.

http://www.viva64.com/en/d/0097/print/

http://www.viva64.com/en/d/0303/print/

http://www.viva64.com/en/d/0165/print/