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| author | Felix S. Klock II <pnkfelix@pnkfx.org> | 2018-08-30 13:16:59 +0200 |
|---|---|---|
| committer | Felix S. Klock II <pnkfelix@pnkfx.org> | 2018-09-06 13:00:26 +0200 |
| commit | 7834c2284801766f9925576e8f4d05d7cb7b23dd (patch) | |
| tree | b0676510293a1ab5317291bd79f4136754dae764 /src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs | |
| parent | 20ca02569ae3e1dc29962e92739fbab632abf241 (diff) | |
| download | rust-7834c2284801766f9925576e8f4d05d7cb7b23dd.tar.gz rust-7834c2284801766f9925576e8f4d05d7cb7b23dd.zip | |
Migrated slew of run-pass tests to various subdirectories of `ui/run-pass/`.
Diffstat (limited to 'src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs')
| -rw-r--r-- | src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs b/src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs new file mode 100644 index 00000000000..18f7eff280a --- /dev/null +++ b/src/test/ui/run-pass/packed/packed-tuple-struct-layout.rs @@ -0,0 +1,30 @@ +// Copyright 2013 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +use std::mem; + +#[repr(packed)] +struct S4(u8,[u8; 3]); + +#[repr(packed)] +struct S5(u8,u32); + +pub fn main() { + unsafe { + let s4 = S4(1, [2,3,4]); + let transd : [u8; 4] = mem::transmute(s4); + assert_eq!(transd, [1, 2, 3, 4]); + + let s5 = S5(1, 0xff_00_00_ff); + let transd : [u8; 5] = mem::transmute(s5); + // Don't worry about endianness, the u32 is palindromic. + assert_eq!(transd, [1, 0xff, 0, 0, 0xff]); + } +} |
