Function List.popFront

Pop the last element of the bidirectional list, effectively reducing its length by 1.

auto popFront(T)() nothrow scope
if (is(T == Unqual!ElementType) || is(T == void));

List.ElementType popFront(T) (
  List.ElementType def
) nothrow scope;

Return erased element.

Examples

List!(int) list = List!(int).build(30, 20, 10);
assert(list.length == 3);

assert(list.popFront == 30);
assert(list.length == 2);

assert(list.popFront == 20);
assert(list.length == 1);

assert(list.popFront == 10);
assert(list.empty);

assert(list.popFront(int.init) == int.init);
assert(list.empty);

assert(list.popFront(42) == 42);
assert(list.empty);