72 lines
2.0 KiB
Rust
72 lines
2.0 KiB
Rust
// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//
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#[repr(C)]
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#[derive(Copy, Clone)]
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pub struct Quad { a: u64, b: u64, c: u64, d: u64 }
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#[repr(C)]
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#[derive(Copy, Clone)]
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pub struct Floats { a: f64, b: u8, c: f64 }
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mod rustrt {
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use super::{Floats, Quad};
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#[link(name = "rust_test_helpers", kind = "static")]
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extern {
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pub fn rust_dbg_abi_1(q: Quad) -> Quad;
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pub fn rust_dbg_abi_2(f: Floats) -> Floats;
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}
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}
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fn test1() {
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unsafe {
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let q = Quad { a: 0xaaaa_aaaa_aaaa_aaaa,
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b: 0xbbbb_bbbb_bbbb_bbbb,
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c: 0xcccc_cccc_cccc_cccc,
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d: 0xdddd_dddd_dddd_dddd };
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let qq = rustrt::rust_dbg_abi_1(q);
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println!("a: {:x}", qq.a as usize);
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println!("b: {:x}", qq.b as usize);
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println!("c: {:x}", qq.c as usize);
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println!("d: {:x}", qq.d as usize);
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assert_eq!(qq.a, q.c + 1);
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assert_eq!(qq.b, q.d - 1);
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assert_eq!(qq.c, q.a + 1);
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assert_eq!(qq.d, q.b - 1);
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}
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}
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#[cfg(target_pointer_width = "64")]
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fn test2() {
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unsafe {
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let f = Floats { a: 1.234567890e-15_f64,
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b: 0b_1010_1010,
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c: 1.0987654321e-15_f64 };
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let ff = rustrt::rust_dbg_abi_2(f);
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println!("a: {}", ff.a as f64);
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println!("b: {}", ff.b as usize);
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println!("c: {}", ff.c as f64);
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assert_eq!(ff.a, f.c + 1.0f64);
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assert_eq!(ff.b, 0xff);
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assert_eq!(ff.c, f.a - 1.0f64);
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}
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}
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#[cfg(target_pointer_width = "32")]
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fn test2() {
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}
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pub fn main() {
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test1();
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test2();
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}
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