On 5/20/22 07:59, Alexander Zhirov wrote:
> I have a loop spinning, I want to pause in it in order to repeat the
> next iteration. An error is displayed during compilation.
>
> ```d
> while (true)
> {
We are in an unconditional loop which is also infinite.
> }
But you have code after the loop:
> file.close();
>
> return 0;
> }
>
> ```
> source/app.d(32,5): Warning: statement is not reachable
That is warning you that your code cannot be executed. One option:
1) Change main's return type to 'void' and remove 'return 0'. (The
program will automatically return 0 to its starter upon successful
completion and non-zero upon an uncaught exception.)
2) Remove file.close(), which is not needed because File is an RAII
type; its objects close their handles in their destructors automatically.
However, since your code never gets to that point, you may have
unflushed data when you terminate the program. I think it depends on
your file system whether '\n' which is implied at ends of writeln is a
flush trigger.
3) Regardless, I would add file.flush() after the last writeln in the loop.
> Is there any way to pause to slow down the cycle?
That is correct. There is a more pleasant syntax that takes advantage of
D's UFCS:
Thread.sleep(10.seconds);
Ali
