- narrowing conversion from 'unsigned long' to signed type 'int' is implementation-defined
- floating point literal has suffix 'f', which is not uppercase
- narrowing conversion from 'double' to 'float'
- Slots named on_foo_bar are error prone
- also tome Clang style fixes
(see here for the reports: https://github.com/FreeCAD/FreeCAD/pull/7522/commits/d9c2efcc)