1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
module runme;
import std.stdio;
static import example;
extern(C) int add(int a, int b) {
return a + b;
}
extern(C) int sub(int a, int b) {
return a - b;
}
extern(C) int mul(int a, int b) {
return a * b;
}
void main() {
int a = 37;
int b = 42;
writefln( "a = %s", a );
writefln( "b = %s", b );
writeln( "Trying some C callback functions:" );
writefln( " ADD(a,b) = %s", example.do_op( a, b, example.ADD ) );
writefln( " SUB(a,b) = %s", example.do_op( a, b, example.SUB ) );
writefln( " MUL(a,b) = %s", example.do_op( a, b, example.MUL ) );
writeln( "Now the same with callback functions defined in D:" );
writefln( " add(a,b) = %s", example.do_op( a, b, &add ) );
writefln( " sub(a,b) = %s", example.do_op( a, b, &sub ) );
writefln( " mul(a,b) = %s", example.do_op( a, b, &mul ) );
}
|
