Whats the difference

[PracticingProgrammer]

is there any difference between:

while(true);
and,
do(;;);

[3hM2Nwbp]

Yes, while(true) is valid, do(;;) is not. Were you meaning for(;;)?

while(true) { } and for(;;) { } will accomplish the same thing.

If you meant
while(true) { }
versus
do { } while(true);

Then there is still a difference. The first is a top-driven loop while the second is a bottom-driven loop. The bottom-driven loop is guaranteed to execute the loop body at least one time.

[PracticingProgrammer]

yeah ops, my bad. thanks for correcting me

[Mathhead200]

while(true) evaluates a runtime constant over and over, where as for(;;) doesn't, but I don't know if that makes a difference. In fact, even that possible minute difference will probably be optimized out by the compiler.

[PracticingProgrammer]

so it does not matter what one i use?

[3hM2Nwbp]

It's a matter of style, while(true) { } looks a little cleaner than for(;;) { } in my humblest of opinions. Verbosity in code usually lends a hand to third parties trying to understand it.

[PracticingProgrammer]

thanks, i guess it's what your used to. Thanks for your opinion regarding my issue.

[ascii]

yeah you can also use

while(1)
{
}

it will have the same effect. just dont forget to use break so you dont get stuck in the loops :)

[PracticingProgrammer]

yeah cheers i've learnt loops the hard way lol :)

[Mathhead200]

Mathhead200

...that possible minute difference will probably be optimized out by the compiler.

i.e. They should behave exactly the same.

I like to use while(true) { ... } also Luc Lieber.