What would be the equivalent of doing the following for loop as a while loop?
for (int i=0;i<10;i++)
{
...
}
At first I thought the following would work:
int n = 0;
while (n++ <= 10)
{
...
}
But it seems that the post-increment happens before the first while loop is entered, and so I'd need to set n=-1 to adjust for that. Is there a closer way to re-write a for loop into a while loop (without the do) ?
You would have to put the increment inside the body of the loop (at the very end thereof):
int n = 0;
while (n < 10)
{
//...
n++;
}
But note well: As mentioned in the comments, any continue statement inside such a loop (if not itself enclosed in a nested, inner loop) will break the code and create a potentially infinite loop!
Moral of the Story: Use a for loop when a for loop is appropriate, and a while loop when a while loop is appropriate.
continue; would make it an infinite loop.
continue would do the same!There's two way to do it.
Try following source code
int n=0;
while(n <= 10){
//do your task here
n++;
}
do-while
int n=0;
do{
//do your task here
n++;
}while(n <= 10)
do. If you are to use it then int n=0; do {...} while(n++ < 10) works.If you want a post-increment while loop then use (n - 1) inside the while loop or you can create a temporary variable too.
int n = 0;
while(n++ < 10){
// use n - 1
}
or,
int n = 0;
while(n++ < 10){
int tn = n - 1; // use tn instead of n - 1
}
int n = 10; while(n--) {...}will work in reverse. However, any such rewrite will extend the scope and lifetime ofnbeyond the loops.