In the past I asked Adam about when I should use keyword `new`
with structures and got next answer:
"The File in the first one is put on the stack as a reference
counted
local object whereas the second one would be on the garbage
collected
heap, which often isn't what you want for files since you want to
close
them when you're done.
Generally, D's structs often work best without the `new` keyword
since
they can be made in place."
But I have read that stack size is very limited I tried to test
two variants of reading big (20MB) text file:
auto file = File("test.txt", "r");
and
auto file = new File("test.txt", "r");
Tests does not show any significant difference in performance.
But I still not understand where the data is location in first
variant?