On 2015-12-11 10:18, Mike McKee wrote:
Well, part of it was that I needed to do -shared on Linux instead of
-dynamiclib. On OSX, I have to use -dynamiclib.
It compiles now on the C code, but when I created a cmain.c to test the
library, it gave me a segmentation fault when trying to run this
compiled program, even though I copied gfunc.o and cfunc.o to /usr/lib
on Linux.
// cmain.c
#include <stdio.h>
extern char * c_dfunc(char *s);
void main() {
printf("%s\n",c_dfunc("request"));
}
There are several issues:
1. The D function needs to use C compatible types, see my answer to your
previous post
2. You need to initialize the D runtime from the C side
3. If you allocate data in D using the GC and pass it to the C side, you
need to make sure there's a reference to it on the D side. Otherwise the
GC could collect the memory
4. Dynamic libraries are not yet supported on OS X
I recommend asking these question in the learning forum. As a first step
you need to learn how to interact between D and C. You can get a lot of
answers for that on the learning forum, tutorials, documentation, books
and so on.
--
/Jacob Carlborg
