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// run-pass
#![allow(dead_code)]
// ignore-wasm32-bare no libc to test ffi with
#[repr(C)]
#[derive(Copy, Clone)]
pub struct Quad {
a: u64,
b: u64,
c: u64,
d: u64,
}
#[repr(C)]
#[derive(Copy, Clone)]
pub struct Floats {
a: f64,
b: u8,
c: f64,
}
#[repr(C)]
#[derive(Copy, Clone)]
pub struct CharCharDouble {
a: u8,
b: u8,
c: f64,
}
#[repr(C)]
#[derive(Copy, Clone)]
pub struct CharCharFloat {
a: u8,
b: u8,
c: f32,
}
mod rustrt {
use super::{CharCharDouble, CharCharFloat, Floats, Quad};
#[link(name = "rust_test_helpers", kind = "static")]
extern "C" {
pub fn rust_dbg_abi_1(q: Quad) -> Quad;
pub fn rust_dbg_abi_2(f: Floats) -> Floats;
pub fn rust_dbg_abi_3(a: CharCharDouble) -> CharCharDouble;
pub fn rust_dbg_abi_4(a: CharCharFloat) -> CharCharFloat;
}
}
fn test1() {
unsafe {
let q = Quad {
a: 0xaaaa_aaaa_aaaa_aaaa,
b: 0xbbbb_bbbb_bbbb_bbbb,
c: 0xcccc_cccc_cccc_cccc,
d: 0xdddd_dddd_dddd_dddd,
};
let qq = rustrt::rust_dbg_abi_1(q);
println!("a: {:x}", qq.a as usize);
println!("b: {:x}", qq.b as usize);
println!("c: {:x}", qq.c as usize);
println!("d: {:x}", qq.d as usize);
assert_eq!(qq.a, q.c + 1);
assert_eq!(qq.b, q.d - 1);
assert_eq!(qq.c, q.a + 1);
assert_eq!(qq.d, q.b - 1);
}
}
#[cfg(target_pointer_width = "64")]
fn test2() {
unsafe {
let f = Floats { a: 1.234567890e-15_f64, b: 0b_1010_1010, c: 1.0987654321e-15_f64 };
let ff = rustrt::rust_dbg_abi_2(f);
println!("a: {}", ff.a as f64);
println!("b: {}", ff.b as usize);
println!("c: {}", ff.c as f64);
assert_eq!(ff.a, f.c + 1.0f64);
assert_eq!(ff.b, 0xff);
assert_eq!(ff.c, f.a - 1.0f64);
}
}
#[cfg(target_pointer_width = "32")]
fn test2() {}
#[cfg(target_pointer_width = "64")]
fn test3() {
unsafe {
let a = CharCharDouble { a: 1, b: 2, c: 3. };
let b = rustrt::rust_dbg_abi_3(a);
println!("a: {}", b.a);
println!("b: {}", b.b);
println!("c: {}", b.c);
assert_eq!(b.a, a.a + 1);
assert_eq!(b.b, a.b - 1);
assert_eq!(b.c, a.c + 1.0);
}
}
#[cfg(target_pointer_width = "32")]
fn test3() {}
fn test4() {
unsafe {
let a = CharCharFloat { a: 1, b: 2, c: 3. };
let b = rustrt::rust_dbg_abi_4(a);
println!("a: {}", b.a);
println!("b: {}", b.b);
println!("c: {}", b.c);
assert_eq!(b.a, a.a + 1);
assert_eq!(b.b, a.b - 1);
assert_eq!(b.c, a.c + 1.0);
}
}
pub fn main() {
test1();
test2();
test3();
test4();
}
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