http://dlang.org/phobos/std_getopt.html has a line in an example saying exit(1);

Surely this works only if core.stdc.stdlib is imported? Should the example be modified to show the import?

And is exit() the canonical way to exit the current process even in D?

-- 
Shriramana Sharma, Penguin #395953

On Thursday, 17 December 2015 at 05:02:50 UTC, Shriramana Sharma wrote:
> http://dlang.org/phobos/std_getopt.html has a line in an example saying exit(1);
>
> Surely this works only if core.stdc.stdlib is imported? Should the example be modified to show the import?
>
> And is exit() the canonical way to exit the current process even in D?

Ouch, that's not good. `exit` is not a good way to terminate a D program. It doesn't call destructors, including module destructors. The example should be restructured to `return 1;` from `main`.

On 2015-12-17 06:11, Jakob Ovrum wrote:

> Ouch, that's not good. `exit` is not a good way to terminate a D
> program. It doesn't call destructors, including module destructors. The
> example should be restructured to `return 1;` from `main`.

I agree with that, but why don't the runtime register a function with "atexit" that cleans up everything?

-- 
/Jacob Carlborg

Jakob Ovrum wrote:

> The example should be restructured to `return 1;`
> from `main`.

https://github.com/D-Programming-Language/phobos/pull/3875

-- 
Shriramana Sharma, Penguin #395953

On Thursday, 17 December 2015 at 07:33:36 UTC, Jacob Carlborg wrote:
> I agree with that, but why don't the runtime register a function with "atexit" that cleans up everything?

I think it might be possible, but it doesn't sound trivial. In particular, all threads and fibers managed by druntime need to have their stacks rewinded.