https://github.com/D-Programming-Language/druntime/blob/master/src/rt/dmain2.d#L270 well, this sucks.

On Thursday, 4 September 2014 at 15:10:22 UTC, Jorge A. S. wrote:
> I'm having an error related to yours: when I call writeln function in a closed stdout I will get a segfault message. Example:
>
> import std.stdio;
>
> void main() {
>   stdout.close();
>   write("hello\n");
> }
>
> The code above will crash with segfault buf the following code will raise an exception instead:
>
> import std.stdio;
>
> void main() {
>   stdout.close();
>   stdout.write("hello\n");
> }
>
> In one of the specializations of the write function in the std.stdio (the call site that you showed in your post) no check for closed stdout (when stdout._p is null) is done. I can't say if this is a bug in the write function or the desired behaviour (I'm a novice here).
>

With DMD of git master, the latter code seems to raise Exception (stdio.d(2247): Enforcement failed) instead of segfault.

On Friday, 5 September 2014 at 07:22:23 UTC, hane wrote:
> On Thursday, 4 September 2014 at 15:10:22 UTC, Jorge A. S. wrote:
>> I'm having an error related to yours: when I call writeln function in a closed stdout I will get a segfault message. Example:
>>
>> import std.stdio;
>>
>> void main() {
>>  stdout.close();
>>  write("hello\n");
>> }
>>
>> The code above will crash with segfault buf the following code will raise an exception instead:
>>
>> import std.stdio;
>>
>> void main() {
>>  stdout.close();
>>  stdout.write("hello\n");
>> }
>>
>> In one of the specializations of the write function in the std.stdio (the call site that you showed in your post) no check for closed stdout (when stdout._p is null) is done. I can't say if this is a bug in the write function or the desired behaviour (I'm a novice here).
>>
>
> With DMD of git master, the latter code seems to raise Exception (stdio.d(2247): Enforcement failed) instead of segfault.

Oops, I meant 'former' of course.

On Thursday, 4 September 2014 at 20:57:41 UTC, Kagamin wrote:
> https://github.com/D-Programming-Language/druntime/blob/master/src/rt/dmain2.d#L270 well, this sucks.

Is there a way I can call module c-tors explicitly?

I was under impression that D(dmd) was suppose to work with VisualC++ in x64bit mode.

It's not a module ctor, this code is executed much earlier. You can write a function, which will initialize standard streams, and call it from the C code before rt_init.