1 extern crate ralloc; 2 3 fn main() { 4 let mut vec = Vec::new(); 5 vec.reserve(1); 6 vec.reserve(2); 7 vec.reserve(3); 8 vec.reserve(100); 9 vec.reserve(600); 10 vec.reserve(1000); 11 vec.reserve(2000); 12 13 vec.push(1); 14 vec.push(2); 15 } 16