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Questions tagged [while-loop]

Use for questions about a segment of code that repeatedly, at the start of each loop, checks some condition and exits if it is false.

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18 votes
7 answers
4k views

How can the language or tooling notify the user of infinite loops?

I'm trying to teach a friend to code in Python. I've noticed that whenever they write a while loop with an integer increment, such as the one shown below: ...
Redz's user avatar
  • 1,076
9 votes
1 answer
457 views

Parsing `do`-`while`, `while`-`do`-`end` and `do`-`end`

Consider the Lua programming language, which has the following constructs involving the keywords do and end: ...
Luatic's user avatar
  • 330
3 votes
5 answers
285 views

What are the advantages of providing an until loop construct?

An until loop construct until (x) can almost always be achieved with a while loop while (!x). What's a possible reasoning behind ...
Nimesh Neema's user avatar
18 votes
7 answers
1k views

What are the pros and cons of having do ... while loops?

One somewhat rarely used, but still occasionally handy, feature of many programming languages is do ... while loops: ...
Rydwolf Programs's user avatar