#![allow(dead_code, unused_variables)] #![warn(clippy::cast_lossless)] // should not warn on lossy casting in constant types // because not supported yet const C: i32 = 42; const C_I64: i64 = C as i64; fn main() { // should suggest i64::from(c) let c: i32 = 42; let c_i64: i64 = c as i64; }