break a while statement

[mar11]

hallo all,

how could I break the while statement inside the switch statement as follows:

enum st {s0, s1} state;
while(true)
{
switch (state)
 
case s0:
// do something
break;
 
case s1:
if(condition)
//do something
break;   //=======> here the while statement should be broken
else
//do something
break;  //========> here the break of the case s1
 
}

any suggestion please..

best regards..

[code green]

Use a variable in the while condition and set this to false inside case.

jump = 1;
while(jump)
{
    switch (state)
    {
    case s0:
    // do something
    break;
 
    case s1:
    if(condition)
    //do something
    jump = 0;
    break; //=======> here the while statement should be broken
     else
    //do something
    break; //========> here the break of the case s1
    }
}
 

Hmmm, you will also need an escape form the while to prevent an infinite loop.
Why are you using a while loop around the switch anyway?
It seems unnessescary

[Oralloy]

Basically code_green has the answer.

There's always "goto". And now that I've recommended that, just forget I ever did.

Otherwise, introduce an exit condition, as code_green recommends - either a loop control variable or an "exit" state.

enum st {s0, s1, sExit} state;
while(state != sExit)
{
  switch (state)
  {
  case s0:
    // do something
    break;
 
  case s1:
    if(condition)
    {
      //do something
      state = sExit;
    }
    else
      //do something
    break;
  }
}