Write C++ the right way

[SuperFola]

Is your feature request related to a problem?

If you are developing blindly, without any tool guidance, you are doing C++ wrong. Think of these tools like a backup camera in your car. Certainly you can back up without a camera, but having one gives you a second set of eyes, deeper into the action than is possible with your human eyes. https://github.com/lefticus/cpp_weekly/issues/175

Describe the solution you would like

Implement as much as possible from this list: https://github.com/lefticus/cpp_weekly/issues/175

• [x] add CI
• [ ] setup tests (use something like approval tests if starting with existing code)
  • related to:
  • [x] #409
  • [x] #410
  • [x] #403
  • [x] #328
  • [ ] #260
• [ ] enable as many warnings as possible:
  • [ ] #460
• [ ] turn on warnings as errors
• [x] add 2 (or more) compilers
• [ ] add static analysis tools
  • [x] should run in the CI
  • [ ] #461
• [ ] enable runtime analysis
  • [x] valgrind
  • [ ] sanitizers:
    • [x] ASAN (#396)
    • [ ] MSAN
    • [x] UBSAN (#396)
    • [ ] TSAN
• [x] fuzzing
  • [x] enable fuzzing in the CI (#422)
  • [x] #465
  • [x] #467

Is it a big modification to the language? Leave it if you don't know

• [ ] Breaking change
• [ ] Compiler/syntax modifications
• [x] Runtime modifications (standard library, modules, packages...)