Switch/case - number of cases based on user input?

Projects Programming
1

Hi, I've been trying to workout how I can control the number of cases in a switch/case statement based on user input. Is it possible?

Jamie

2

What do you mean "control the number"?

3

The number of cases in the statement:

input = 8;
switch (menu_levels){
   case 1:
      //code
   break;
   ...
   case 8:
      //code
   break;
}
4

What do you mean by "control"?
You can have as many cases as you like - I don't understand your question.

5

What I would like to achieve is this; A rotary encoder is turned to increment a variable, that variable is used to define how many cases (menu levels) are used in the switch statement.

Jamie

6

No. You can't.

You could always provide as many cases as the maximum possible number from you user input, and just not use all of them.

7

You can't have a variable number of cases, but you can have a different switch for each sub-menu, which is what I think you're asking.

8

You still have to code them all - whether you then use them all is different.
Say your code supports up to 15 - but your rotary encoder says only 0-8 as options at any one time. So user is only presented choices 0-8. 9-14 still have to exist.

9

Thanks, that clears that up!

Jamie