This would be undefined behavior in c++ due to aliasing rules on
pointers. It appears to "work" reliably in D when I try it, but
that's obviously no guarantee that it's correct or will continue
to do so.
Is this correct code in D? And if not, what should I do instead
to cleanly and efficiently extract structured data from a
sequence of bytes?
import std.stdio;
struct data
{
int a;
int b;
}
void main()
{
byte[] x = [1, 2, 3, 4, 5, 6, 7, 8];
data* ptr = cast(data*)(x);
printf("%x %x\n", ptr.a, ptr.b);
}