// Compiler: // // Run-time: // status: 0 // stdout: 3 #![feature(auto_traits, lang_items, no_core, start, intrinsics)] #![allow(internal_features)] #![no_std] #![no_core] /* * Core */ // Because we don't have core yet. #[lang = "sized"] pub trait Sized {} #[lang = "copy"] trait Copy { } impl Copy for isize {} #[lang = "receiver"] trait Receiver { } #[lang = "freeze"] pub(crate) unsafe auto trait Freeze {} mod libc { #[link(name = "c")] extern "C" { pub fn printf(format: *const i8, ...) -> i32; } } /* * Code */ #[start] fn main(mut argc: isize, _argv: *const *const u8) -> isize { let test: (isize, isize, isize) = (3, 1, 4); unsafe { libc::printf(b"%ld\n\0" as *const u8 as *const i8, test.0); } 0 }