I discovered the other day (during a cut and paste malfunction!)
that it's possible to have code before the first case in a
switch. Google tells me that it's legal C code and something I
read said it could be used for initialization but was rather
vague.
void main()
{
import std.stdio;
int a=1;
switch(a)
{
a=2;
writeln("hello");
case 1:
break;
case 2:
break;
default:
}
writeln(a);
}
The code before the 'case' has to be legal D code to pass
compilation but it seems to have no effect (which is probably a
good thing!). I was a bit surprised that the compiler (dmd)
didn't generate a warning when using the -w option.
Can someone explain what's going on here please?
