For loops

[pepsiman]

https://en.cppreference.com/w/cpp/language/for says that for loops are equivalent to while loops.

"The above syntax produces code equivalent to:

{
init_statement
while ( condition ) {
statement
iteration_expression ;
}
}"

[andreasfertig]

Hello pesiman,

that's one finding I feared. Your are totally right that this is a valid expansion of a for-loop. I can remember a couple of times I explained this to students. I'm just unsure whether it is a good idea to transform all for-loops to while-loops. I always had options for that in mind. That you can choose for your needs which parts should be transformed.
I think I need more data on what people would like to see here.

[pepsiman]

I was thinking that there's a sequence of transforms, and the user chooses where to stop.
Range based for -> for -> while -> if and goto.

[simonrenger]

Conceptual idea:
Maybe add an extra mode in there like in a way that the user can choose between how deep cppinsight shall go/ transform

[andreasfertig]

Hello @simonrenger,

extra mode like a command line option: -use-while-loops?

Andreas

[simonrenger]

@andreasfertig yes in that way and on the website than just a drop down menu or checkbox(s). I am sure there are other things than just while loops

[andreasfertig]

Hello @simonrenger, @pepsiman,

ok that is what I have in mind. I will push a patch to introduce this functionality in C++ Insights. There will be options to C++ Insights -alt-syntax-for and one for #44. However, it will take some additional time to prepare the website with a drop down menu with checkbox(s). As web-dev is not my strong suite, contributions for the drop down checkbox menu are welcome.

Andreas