rust/tests/ui/issues/issue-3656.rs

//@ run-pass
#![allow(dead_code)]
#![allow(improper_ctypes)]
// Issue #3656
// Incorrect struct size computation in the FFI, because of not taking
// the alignment of elements into account.


use std::ffi::{c_uint, c_void};

pub struct KEYGEN {
    hash_algorithm: [c_uint; 2],
    count: u32,
    salt: *const c_void,
    salt_size: u32,
}

extern "C" {
    // Bogus signature, just need to test if it compiles.
    pub fn malloc(data: KEYGEN);
}

pub fn main() {}