rust/tests/ui/abi/c-stack-returning-int64.rs

32 lines
705 B
Rust

//@ run-pass
//@ ignore-sgx no libc
use std::ffi::CString;
mod mlibc {
use std::ffi::{c_char, c_long, c_longlong};
extern "C" {
pub fn atol(x: *const c_char) -> c_long;
pub fn atoll(x: *const c_char) -> c_longlong;
}
}
fn atol(s: String) -> isize {
let c = CString::new(s).unwrap();
unsafe { mlibc::atol(c.as_ptr()) as isize }
}
fn atoll(s: String) -> i64 {
let c = CString::new(s).unwrap();
unsafe { mlibc::atoll(c.as_ptr()) as i64 }
}
pub fn main() {
assert_eq!(atol("1024".to_string()) * 10, atol("10240".to_string()));
assert_eq!(
(atoll("11111111111111111".to_string()) * 10),
atoll("111111111111111110".to_string())
);
}