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Harald Hoyer 2018-12-20 15:12:59 +01:00
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<div id="content" class="content">
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<pre><pre class="playpen"><code class="language-rust">use std::error::Error;
<a class="header" href="#simple-string-errors" id="simple-string-errors"><h1>Simple String Errors</h1></a>
<p>The most simplest of doing error handling in rust is by returning <code>String</code> as a <code>Box&lt;Error&gt;</code>.</p>
<p>As you can see by running the example, this only prints out the last <code>Error</code>.</p>
<p>If the rust <code>main</code> function returns an Err(), this Err() will be displayed with <code>std::fmt::Debug</code>.</p>
<pre><pre class="playpen"><code class="language-rust">use std::error::Error;
use std::result::Result;
fn do_some_io() -&gt; Result&lt;(), Box&lt;Error&gt;&gt; {