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<title>Logtalk control construct: {}/1</title>
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<h2><code>{}/1</code></h2>
<h4>Description</h4>
<blockquote>
<pre>{Goal}</pre>
<p>
Calls external Prolog code. Can be used to bypass the Logtalk preprocessor/compiler.
</p>
</blockquote>
<h4>Template and modes</h4>
<pre>{+callable}</pre>
<h4>Errors</h4>
(none)
<h4>Examples</h4>
<pre>N1/D1 < N2/D2 :-
{N1*D2 < N2*D1}.</pre>
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