compiler/rustc_codegen_gcc/tests/run/ptr_cast.rs

// Compiler:
//
// Run-time:
//   status: 0
//   stdout: 10
//     10
//     42
//     1

#![feature(no_core)]
#![no_std]
#![no_core]
#![no_main]

extern crate mini_core;
use mini_core::*;

fn int_cast(a: u16, b: i16) -> (u8, u16, u32, usize, i8, i16, i32, isize, u8, u32) {
    (
        a as u8, a as u16, a as u32, a as usize, a as i8, a as i16, a as i32, a as isize, b as u8,
        b as u32,
    )
}

static mut ONE: usize = 1;

#[no_mangle]
extern "C" fn main(argc: i32, _argv: *const *const u8) -> i32 {
    let (a, b, c, d, e, f, g, h, i, j) = int_cast(10, 42);
    unsafe {
        libc::printf(b"%d\n\0" as *const u8 as *const i8, c);
        libc::printf(b"%ld\n\0" as *const u8 as *const i8, d);
        libc::printf(b"%ld\n\0" as *const u8 as *const i8, j);

        let ptr = ONE as *mut usize;
        let value = ptr as usize;
        libc::printf(b"%ld\n\0" as *const u8 as *const i8, value);
    }
    0
}