yap-6.3/Logtalk/manuals/refman/directives/op3.html

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<h2><code>op/3</code></h2>


<h4>Description</h4>

<blockquote>
<pre>op(Precedence, Associativity, Operator)</pre>
	<p>
	Declares operators. Operators declared inside objects and categories have local scope. Global operators can be declared inside a source file by writing the respective directives before the entity opening directives.
	</p>
</blockquote>

<h4>Template and modes</h4>

<blockquote>
<pre>op(+integer, +associativity, +atom_or_atom_list)</pre>
</blockquote>


<h4>Examples</h4>

<blockquote>
<pre>:- op(950, fx, +).
:- op(950, fx, ?).
:- op(950, fx, @).
:- op(950, fx, -).</pre>
</blockquote>

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			`<title>Logtalk entity directive: op/3</title>`
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Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<div class="navtop">`
			`<a href="../../index.html">contents</a> > <a href="../index.html">reference manual</a> > <a href="../index.html#directives">directives</a>`
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			`<h2><code>op/3</code></h2>`

Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00
			`<h4>Description</h4>`

			`<blockquote>`
Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<pre>op(Precedence, Associativity, Operator)</pre>`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`<p>`
Logtalk 2.22.4 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1232 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2005-01-13 12:22:42 +00:00			`Declares operators. Operators declared inside objects and categories have local scope. Global operators can be declared inside a source file by writing the respective directives before the entity opening directives.`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`</p>`
			`</blockquote>`

			`<h4>Template and modes</h4>`

			`<blockquote>`
Logtalk 2.16.0 release files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1014 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2004-03-03 04:07:59 +00:00			`<pre>op(+integer, +associativity, +atom_or_atom_list)</pre>`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`</blockquote>`


			`<h4>Examples</h4>`

			`<blockquote>`
Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<pre>:- op(950, fx, +).`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`:- op(950, fx, ?).`
			`:- op(950, fx, @).`
Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`:- op(950, fx, -).</pre>`
Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00			`</blockquote>`

Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<div class="navbottom">`
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Logtalk files git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@55 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2001-06-06 21:07:01 +01:00
Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<div class="copyright">`
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Logtalk 2.15.5 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@955 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2003-12-30 13:33:51 +00:00			`<div class="footer">`
Logtalk 2.22.4 files. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1232 b08c6af1-5177-4d33-ba66-4b1c6b8b522a 2005-01-13 12:22:42 +00:00			`<p><span class="bleft"><a href="http://validator.w3.org/check/referer">XHTML</a> + <a href="http://jigsaw.w3.org/css-validator/check/referer">CSS</a></span><span class="bright">Last updated on: January 12, 2005</span></p>`
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