On Monday, 12 March 2012 at 15:17:32 UTC, Alex Rønne Petersen
wrote:
On 12-03-2012 16:09, Chris W. wrote:
On Monday, 12 March 2012 at 15:00:31 UTC, Steven Schveighoffer
wrote:
On Mon, 12 Mar 2012 10:53:09 -0400, Chris W. <wend...@cd.ie>
wrote:
I have a problem when calling D functions from C. While I can
perform simple arithmetic operations (i.e. the calculation is
performed in D and returned to C), I experience problems when
trying to perform string/char operations or call functions
from
the D standard library (e.g. writefln()). The usual error
message
I get is either "Bus error" or "Segmentation fault". I
haven't
been able to find the reason for this. The programs compile
and
link, however, when run, they terminate with "Bus error"
whenever
a D function is performed within the D code, e.g. something
like
char[] s2 = s.dup; (s is a char* passed from C). Any hint or
help
would be appreciated.
I am using Mac OS X, 10.6.7
If C is running your application startup, you must initialize
D's
runtime from your C main routine.
-Steve
Yes, I am using extern (C) and in my C main function I call
gc_init();
thread_attachThis();
This works fine for primitive types such as int + int
calculations. But
anything more sophisticated renders a Bus error. I am sure it
is just
some little detail I have forgotten.
Don't forget to call this:
https://github.com/D-Programming-Language/druntime/blob/master/src/core/runtime.d#L33
Documented here:
https://github.com/D-Programming-Language/druntime/blob/master/src/core/runtime.d#L101
Thanks a million, calling rt_init(); in my C code did the trick.
Now I can perform string operations etc. I knew it was just a
tiny little detail.
