int (*Compare)(const void*, const void*)) {
// Don't dereference start iterator of empty sequence.
if (Start == End) return;
qsort(&*Start, End-Start, sizeof(*Start), Compare);
}
int (*Compare)(const void*, const void*)) {
// Don't dereference start iterator of empty sequence.
if (Start == End) return;
qsort(&*Start, End-Start, sizeof(*Start), Compare);
}