src/test/run-pass/issue-11736.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // pretty-expanded FIXME #23616
  12
  13 #![feature(bitvec)]
  14
  15 use std::collections::BitVec;
  16
  17 fn main() {
  18     // Generate sieve of Eratosthenes for n up to 1e6
  19     let n = 1000000;
  20     let mut sieve = BitVec::from_elem(n+1, true);
  21     let limit: usize = (n as f32).sqrt() as usize;
  22     for i in 2..limit+1 {
  23         if sieve[i] {
  24             let mut j = 0;
  25             while i*i + j*i <= n {
  26                 sieve.set(i*i+j*i, false);
  27                 j += 1;
  28             }
  29         }
  30     }
  31     for i in 2..n+1 {
  32         if sieve[i] {
  33         }
  34     }
  35 }