Hi everyone.
I'm new to D, coming from a Java/Python background. I've been
reading the excellent "The D Programming Language" book, and want
to now start playing around with D.
I'm having an issue with importing. When I have the following
file:
file ~/src/sample.d: =====================
import std.stdio;
class A{
int a = 1;
}
class B{
A a;
int b = 2;
this(A a){
this.a = a;
}
}
void main(){
auto a = new A;
auto b = new B(a);
writeln(b.b);
writeln(b.a.a);
}
...and then at the terminal window:
me@ubuntu:~/src$ rdmd sample.d
1
2
However, if I create a second file to import A from like so:
file ~/src/sample.d: =====================
import std.stdio;
import sample_a;
class B{
A a;
int b = 2;
this(A a){
this.a = a;
}
}
void main(){
auto a = new A;
auto b = new B(a);
writeln(b.b);
writeln(b.a.a);
}
file ~/src/sample_a.d: =====================
class A{
int a = 1;
}
...and at the terminal:
me@ubuntu:~/src$ rdmd sample.d
/tmp/.rdmd-1000/rdmd-sample.d-94E53075E2E84D963426A11F2B81FDED/objs/sample.o:
In function `_Dmain':
sample.d:(.text._Dmain+0xa): undefined reference to
`_D8sample_a1A7__ClassZ'
collect2: error: ld returned 1 exit status
--- errorlevel 1
I feel like I'm missing something fundamental (and I'm guessing
it's because I don't have any experience in "compiled" languages.
Can anyone help? It sucks to have everything in one file! :)
Ubuntu 12.10 64bit with the latest D packages (downloaded a few
days ago).
I get the same problems in Win7.
Kind regards,
Korey
