rust/tests/ui/hashmap/hashmap-capacity-overflow.rs
2024-02-16 20:02:50 +00:00

13 lines
316 B
Rust

//@ run-fail
//@ error-pattern:capacity overflow
//@ ignore-emscripten no processes
use std::collections::hash_map::HashMap;
use std::mem::size_of;
fn main() {
let threshold = usize::MAX / size_of::<(u64, u64, u64)>();
let mut h = HashMap::<u64, u64>::with_capacity(threshold + 100);
h.insert(0, 0);
}