34 lines
898 B
Rust
34 lines
898 B
Rust
// Copyright 2013 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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use std::cast;
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use std::ptr;
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use std::sys;
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fn addr_of<T>(ptr: &T) -> uint {
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let ptr = ptr::to_unsafe_ptr(ptr);
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unsafe { ptr as uint }
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}
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fn is_aligned<T>(ptr: &T) -> bool {
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unsafe {
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let addr: uint = cast::transmute(ptr);
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(addr % sys::min_align_of::<T>()) == 0
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}
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}
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pub fn main() {
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let x = Some(0u64);
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match x {
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None => fail!(),
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Some(ref y) => assert!(is_aligned(y))
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}
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}
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