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doc update

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generated from commit 837c7980e8a5b84be28825303faac0ba28e53446
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Harald Hoyer 2018-12-20 16:02:24 +01:00
parent 991a7a0786
commit 188d93a86a
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tutorial5.html
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@ -140,7 +140,10 @@
<div id="content" class="content">
<main>
<pre><pre class="playpen"><code class="language-rust">use crate::chainerror::*;
<a class="header" href="#the-source-of-errors" id="the-source-of-errors"><h2>The source() of Errors</h2></a>
<p>Sometimes you want to inspect the <code>source()</code> of an <code>Error</code>.
<code>chainerror</code> implements <code>std::error::Error::source()</code>, so you can get the cause of an error.</p>
<pre><pre class="playpen"><code class="language-rust">use crate::chainerror::*;
use std::error::Error;
use std::io;
use std::result::Result;
@ -452,6 +455,9 @@ fn main() -&gt; Result&lt;(), Box&lt;Error&gt;&gt; {
# }
# }
</code></pre></pre>
<p>Note, that we changed the output of the error in <code>main()</code> from <code>Debug</code> to <code>Display</code>, so we don't see
the error backtrace with filename and line number.</p>
<p>To enable the <code>Display</code> backtrace, you have to enable the feature <code>display-cause</code> for <code>chainerror</code>.</p>
</main>