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iOS Objective-C Basics (Retired) Functional Programming in C Loops

Posted by Jason F
Jason F
1,795 Points

if there is no i++, wouldnt it go on forever?

why isnt it infinite?

2 Answers

Geoff Parsons
Geoff Parsons
11,679 Points
Geoff Parsons
Geoff Parsons
11,679 Points

I assume you're asking about the do-while loop in this quiz (sorry for not being able to deep link to a specific question in the forums):

int i = 1;
do {
   printf("looping");
} while ( i < 1 ) ;

In this case the loop will execute the print statement once before checking the conditional. Since the conditional will be false (1 is not less than 1) it won't execute a second time.

Petar Zelenovic
Petar Zelenovic
11,356 Points
Petar Zelenovic
Petar Zelenovic
11,356 Points

The only thing the outcome depends on is how you set up the condition.

If your loop checks whether "true equals true" before every iteration it will continue to execute forever. After that it only boils down to the particular language syntax, and the type of the loop you're using.