Re: Foreach Closures?

[Timon Gehr]

On 04/10/2012 12:06 PM, Andrej Mitrovic wrote:

On 4/10/12, Dmitry Olshansky<dmitry.o...@gmail.com>  wrote:

Wake up! dirEntries produce a lazy _range_ and it's not opApply

Sorry? Change DirIterator in std.file to this:
http://pastebin.com/DHvXuFeH

You are doing it wrong.
Use:
if(auto r=dg(s)) return r;
instead.

test.d:
import std.file;

bool isEmptyDir(string path)
{
     foreach (string name; dirEntries(path, SpanMode.shallow))
         return false;

     return true;
}

void main()
{
     isEmptyDir(".");
}

$ rdmd test.d

we're in oppapply