Interfacing via Java Native Interface

[Andrew]

On Wednesday, 16 October 2013 at 10:41:35 UTC, John Colvin wrote:
> On Wednesday, 16 October 2013 at 10:11:32 UTC, Andrew wrote:
>> Hello there!
>> I've decided to learn a bit of D, as I am currently Android 
>> Developer (mostly C++ <- JNI -> Java), I'm trying to create a 
>> D shared library which exports function (with extern (C)) for 
>> invocation from Java.
>> My .d file contains only a single function returning an int, 
>> .java calls this function several times.
>> This approach only works if d-function is trivial, e.g. it's 
>> not using any D functionality (I believe that it is related to 
>> GC and memory allocation).
>> For example, if my d-function just returns some constant 
>> integer, java side receives it. core.stdc.stdio also works and 
>> allows console output, but it's not the case with 
>> std.stdio.writeln and similar functions.
>> If I use any d-specific functions my program crashes while 
>> calling native code with some weird message like following:
>> "Invalid memory access of location 0x0 rip=addr".
>>
>> It seems like D is not initialized at all, maybe there is some 
>> internal function like dinit() which I can call in order to 
>> activate everything?
>>
>> Thanks.
>
> Try using Runtime.init() from core.runtime

Wow, thanks! Now everything works, proving that my guess on 
uninitialized runtime was correct.
It's actually Runtime.initialize() according to documentation, by 
the way.