src/test/run-pass/c-stack-returning-int64.rs

   1 // ignore-wasm32-bare no libc to test with
   2 // ignore-sgx no libc
   3
   4 #![feature(rustc_private)]
   5
   6 extern crate libc;
   7
   8 use std::ffi::CString;
   9
  10 mod mlibc {
  11     use libc::{c_char, c_long, c_longlong};
  12
  13     extern {
  14         pub fn atol(x: *const c_char) -> c_long;
  15         pub fn atoll(x: *const c_char) -> c_longlong;
  16     }
  17 }
  18
  19 fn atol(s: String) -> isize {
  20     let c = CString::new(s).unwrap();
  21     unsafe { mlibc::atol(c.as_ptr()) as isize }
  22 }
  23
  24 fn atoll(s: String) -> i64 {
  25     let c = CString::new(s).unwrap();
  26     unsafe { mlibc::atoll(c.as_ptr()) as i64 }
  27 }
  28
  29 pub fn main() {
  30     assert_eq!(atol("1024".to_string()) * 10, atol("10240".to_string()));
  31     assert_eq!((atoll("11111111111111111".to_string()) * 10),
  32              atoll("111111111111111110".to_string()));
  33 }