Given a template like this:

template foo(V...)
{
  void foo()
  {
    foreach(i,V)
    {
      // "i" is not a const
    }
  }
}

use like this:

foo!(1,2,3,4,5)();

Inside the foreach "i" can't be used as a constant in some cases. The work around I have used is to index into V.

template foo(V...)
{
  void foo()
  {
    foreach(i,j,V)
    {
      const int k = V[i];
      // "i" is not a const
    }
  }
}

However this causes DMD to actually copy the values onto the stack (I took a look at the disassembly). This even happens with optimization on. (This /might/ be considered a bug in and of it's self.)


I'm not sure if either of these is actually a bug, so I'm hoping someone else will take a think on them.