Findings from the essentials course

[hageboeck]

Running list of improvements from the 12th instalment

[chavid]

Side comment: the print helper is handy but may be frightening for beginners.

[chavid]

The final exercise (loospRefsAuto) was somehow redundant with the third one (functions). Not sure how to improve this.

[chavid]

It would help to have more explicit recommendations on the required minimal version of g++ and clang++... which would require an easy way to check that a given version is ok for all exercises ? Perhaps already done in the CI.

[chavid]

I see (only now) that there are many installation instructions in the exercices/README. Fine ! Is it somehow up to date ? Probably it deserves a dedicated file that we may review regularly.

[hageboeck]

Side comment: the print helper is handy but may be frightening for beginners.

I added a NOTE that it's not part of the exercise.

It would help to have more explicit recommendations on the required minimal version of g++ and clang++... which would require an easy way to check that a given version is ok for all exercises ? Perhaps already done in the CI.

The CI already checks that exercises compile with the respective versions. You are right that we have to remember to update this part

cpluspluscourse/exercises/README.md

Lines 23 to 28 in cde47b7

	### Required
	- decent C++ editor
	- any C++ compiler supporting C++20
	- C++17 compiler will do for most of the exercises though
	- git for getting/managing your code

when we move to C++23.

The check_setup.sh also checks compiler versions:

cpluspluscourse/exercises/check_setup.sh

Lines 38 to 39 in cde47b7

	# compiler
	check_tool g++ 10.0.0 false || check_tool clang++ 11.0.0 false || { echo -e "${RED}No supported compiler found${NORMAL}"; exit_status=1; } # clang does not work for header_units exercise