tests/ui/hashmap/hashmap-capacity-overflow.rs

   1 // run-fail
   2 // error-pattern:capacity overflow
   3 // ignore-emscripten no processes
   4
   5 use std::collections::hash_map::HashMap;
   6 use std::mem::size_of;
   7
   8 fn main() {
   9     let threshold = usize::MAX / size_of::<(u64, u64, u64)>();
  10     let mut h = HashMap::<u64, u64>::with_capacity(threshold + 100);
  11     h.insert(0, 0);
  12 }