300 – Lazy Delegate Evaluation

The example in the documentation fails to compile. We get the message...
 "voids have no value"
// TEST 1 
import std.stdio;
void dotimes(int count, void delegate() exp)
{
 for (int i = 0; i < count; i++)
 exp();
}
void foo1()
{
 int x = 0;
 dotimes(10, writef(x++));
}
bool scase(bool b, void delegate() dg)
{
 if (b)
 { dg();
 return true;
 }
 return false;
}
void cond(bool delegate()[] cases ...)
{
 foreach (c; cases)
 { if (c())
 break;
 }
}
void foo2()
{
 int v = 2;
 cond
 (
 scase(v == 1, writefln("it is 1")),
 scase(v == 2, writefln("it is 2")),
 scase(v == 3, writefln("it is 3")),
 scase(true, writefln("it is the default"))
 );
}
void main()
{
 foo1();
 foo2();
}
// ------- code ends ----
I had to change "writef(...)" to "{writef();}" to get it to compile.

Fixed 0.166