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//@aux-build:proc_macros.rs #![warn(clippy::as_conversions)] #![allow(clippy::borrow_as_ptr)] extern crate proc_macros; use proc_macros::external; fn main() { let i = 0u32 as u64; let j = &i as *const u64 as *mut u64; external!(0u32 as u64); }