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</pre><pre class="rust ">
<span class="comment">// Copyright 2015 The Rust Project Developers. See the COPYRIGHT</span>
<span class="comment">// file at the top-level directory of this distribution and at</span>
<span class="comment">// http://rust-lang.org/COPYRIGHT.</span>
<span class="comment">//</span>
<span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span>
<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span>
<span class="comment">// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span>
<span class="comment">// option. This file may not be copied, modified, or distributed</span>
<span class="comment">// except according to those terms.</span>
<span class="doccomment">//! Raw OS-specific types for the current platform/architecture</span>
<span class="attribute">#<span class="op">!</span>[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span>
<span class="kw">use</span> <span class="ident">fmt</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"emscripten"</span>,
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"linux"</span>, <span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"s390x"</span>)),
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"android"</span>, <span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>)),
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"fuchsia"</span>, <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>)))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_char</span> <span class="op">=</span> <span class="ident">u8</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"emscripten"</span>,
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"linux"</span>, <span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"s390x"</span>)),
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"android"</span>, <span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>,
<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>)),
<span class="ident">all</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"fuchsia"</span>, <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>))))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_char</span> <span class="op">=</span> <span class="ident">i8</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_schar</span> <span class="op">=</span> <span class="ident">i8</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_uchar</span> <span class="op">=</span> <span class="ident">u8</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_short</span> <span class="op">=</span> <span class="ident">i16</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_ushort</span> <span class="op">=</span> <span class="ident">u16</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_int</span> <span class="op">=</span> <span class="ident">i32</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_uint</span> <span class="op">=</span> <span class="ident">u32</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"32"</span>, <span class="ident">windows</span>))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_long</span> <span class="op">=</span> <span class="ident">i32</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"32"</span>, <span class="ident">windows</span>))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_ulong</span> <span class="op">=</span> <span class="ident">u32</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"64"</span>, <span class="ident">not</span>(<span class="ident">windows</span>)))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_long</span> <span class="op">=</span> <span class="ident">i64</span>;
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">target_pointer_width</span> <span class="op">=</span> <span class="string">"64"</span>, <span class="ident">not</span>(<span class="ident">windows</span>)))]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_ulong</span> <span class="op">=</span> <span class="ident">u64</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_longlong</span> <span class="op">=</span> <span class="ident">i64</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_ulonglong</span> <span class="op">=</span> <span class="ident">u64</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_float</span> <span class="op">=</span> <span class="ident">f32</span>;
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">type</span> <span class="ident">c_double</span> <span class="op">=</span> <span class="ident">f64</span>;
<span class="doccomment">/// Type used to construct void pointers for use with C.</span>
<span class="doccomment">///</span>
<span class="doccomment">/// This type is only useful as a pointer target. Do not use it as a</span>
<span class="doccomment">/// return type for FFI functions which have the `void` return type in</span>
<span class="doccomment">/// C. Use the unit type `()` or omit the return type instead.</span>
<span class="comment">// NB: For LLVM to recognize the void pointer type and by extension</span>
<span class="comment">// functions like malloc(), we need to have it represented as i8* in</span>
<span class="comment">// LLVM bitcode. The enum used here ensures this and prevents misuse</span>
<span class="comment">// of the "raw" type by only having private variants.. We need two</span>
<span class="comment">// variants, because the compiler complains about the repr attribute</span>
<span class="comment">// otherwise.</span>
<span class="attribute">#[<span class="ident">repr</span>(<span class="ident">u8</span>)]</span>
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"raw_os"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.1.0"</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">c_void</span> {
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"c_void_variant"</span>, <span class="ident">reason</span> <span class="op">=</span> <span class="string">"should not have to exist"</span>,
<span class="ident">issue</span> <span class="op">=</span> <span class="string">"0"</span>)]</span>
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span> <span class="ident">__variant1</span>,
<span class="attribute">#[<span class="ident">unstable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"c_void_variant"</span>, <span class="ident">reason</span> <span class="op">=</span> <span class="string">"should not have to exist"</span>,
<span class="ident">issue</span> <span class="op">=</span> <span class="string">"0"</span>)]</span>
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span> <span class="ident">__variant2</span>,
}
<span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"std_debug"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.16.0"</span>)]</span>
<span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">c_void</span> {
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> {
<span class="ident">f</span>.<span class="ident">pad</span>(<span class="string">"c_void"</span>)
}
}
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">unused_imports</span>)]</span>
<span class="kw">mod</span> <span class="ident">tests</span> {
<span class="kw">use</span> <span class="ident">any</span>::<span class="ident">TypeId</span>;
<span class="kw">use</span> <span class="ident">libc</span>;
<span class="kw">use</span> <span class="ident">mem</span>;
<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">ok</span> {
($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span>:<span class="ident">ident</span>)<span class="kw-2">*</span>) <span class="op">=></span> {$(
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">TypeId</span>::<span class="ident">of</span>::<span class="op"><</span><span class="ident">libc</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span><span class="op">></span>() <span class="op">==</span> <span class="ident">TypeId</span>::<span class="ident">of</span>::<span class="op"><</span><span class="ident">raw</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span><span class="op">></span>(),
<span class="string">"{} is wrong"</span>, <span class="macro">stringify</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span>));
)<span class="kw-2">*</span>}
}
<span class="attribute">#[<span class="ident">test</span>]</span>
<span class="kw">fn</span> <span class="ident">same</span>() {
<span class="kw">use</span> <span class="ident">os</span>::<span class="ident">raw</span>;
<span class="macro">ok</span><span class="macro">!</span>(<span class="ident">c_char</span> <span class="ident">c_schar</span> <span class="ident">c_uchar</span> <span class="ident">c_short</span> <span class="ident">c_ushort</span> <span class="ident">c_int</span> <span class="ident">c_uint</span> <span class="ident">c_long</span> <span class="ident">c_ulong</span>
<span class="ident">c_longlong</span> <span class="ident">c_ulonglong</span> <span class="ident">c_float</span> <span class="ident">c_double</span>);
}
}
</pre>
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564935689ab5527f955e5449ded02799
>
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>
2746
