On Thursday, 8 May 2014 at 21:38:12 UTC, Andrei Alexandrescu
wrote:
Interesting. So then the range returned by format() will save
everything passed to it, which means...
int fun(int[] a)
{
auto before = format("Before: %s", a);
foreach (ref e; a) ++e;
auto after = format("After: %s", a);
writeln(before, "\n--->\n", after);
}
*ouch*
Andrei
void fun(int[] a)
{
auto before = a.map!(a => a + 1);
foreach (ref e; a) ++e;
auto after = a.map!(a => a + 1);
writeln(before, "\n--->\n", after);
}
Laziness and mutable references are not the best of friends.
