Hi there.
Brief introduction, and a beginner's question.
I just started playing with D a couple of weeks ago. I have been
programming in C on and off since the late 80s, but I do finance
for a living and my programming skills grew rusty. I have a bit
more time now to catch up with developments, and D looks a very
intriguing robust alternative to C when python won't cut the
mustard.
I am trying to implement the Demark technical analysis indicators
in D, and want to be able to call them from python.
So I have set up pyd okay, and the examples seem to work fine.
Running on Fedora 20. I am struggling a bit with the syntax on
wrap_struct to export a struct and function returning a struct to
python. Here is what I have:
module hello2;
import pyd.pyd;
import std.stdio;
import std.conv;
struct t_mystruct {
int i;
string s;
};
t_mystruct hello(int[] inp) {
int i;
t_mystruct mystruct;
mystruct.i=inp.length;
mystruct.s="hello there";
return mystruct;
}
extern(C) void PydMain() {
def!(hello)();
module_init();
wrap_struct!(
t_mystruct,
"t_mystruct"
);
}
Error:
def: hello
/root/anaconda/lib/python2.7/site-packages/celerid/infrastructure/pyd/def.d(151):
Error: static assert "string parameters must be wrapped with
Docstring, Mode, etc"
/root/anaconda/lib/python2.7/site-packages/celerid/infrastructure/pyd/class_wrap.d(1474):
instantiated from here: Args!("", "", "t_mystruct", "",
"t_mystruct")
hellostruct.d(30): instantiated from here:
wrap_struct!(t_mystruct, "t_mystruct")
error: command 'dmd' failed with exit status 1
[root@fedora demark]#
Apologies if it's in one of the examples - I did poke around, and
couldn't see any obvious sample.
Many thanks.
Laeeth.
