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<h2>
<span class="refentrytitle">tableng</span>
</h2>
<p>tableng —
Interrogates a function table for length.
</p>
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<div class="refsect1">
<a id="idm281472880964280"></a>
<h2>Description</h2>
<p>
Interrogates a function table for length.
</p>
</div>
<div class="refsect1">
<a id="idm281472880962936"></a>
<h2>Syntax</h2>
<pre class="synopsis">ires <span class="command"><strong>tableng</strong></span> ifn</pre>
<pre class="synopsis">kres <span class="command"><strong>tableng</strong></span> kfn</pre>
</div>
<div class="refsect1">
<a id="idm281472880959256"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ifn</em></span> -- Table number to be interrogated
</p>
</div>
<div class="refsect1">
<a id="idm281472880957560"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kfn</em></span> -- Table number to be interrogated
</p>
<p>
<span class="emphasis"><em>tableng</em></span> returns the length of the specified table. This will be a power of two number in most circumstances. It will not show whether a table has a guardpoint or not. It seems this information is not available in the table's data structure. If the specified table is not found, then 0 will be returned.
</p>
<p>
Likely to be useful for setting up code for table manipulation operations, such as <a class="link" href="tablemix.html" title="tablemix"><em class="citetitle">tablemix</em></a> and <a class="link" href="tablecopy.html" title="tablecopy"><em class="citetitle">tablecopy</em></a>.
</p>
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<div class="refsect1">
<a id="idm281472880951960"></a>
<h2>Examples</h2>
<p>
Here is an example of the tableng opcode. It uses the file <a class="ulink" href="examples/tableng.csd" target="_top"><em class="citetitle">tableng.csd</em></a>.
</p>
<div class="example">
<a id="idm281472880950184"></a>
<p class="title">
<strong>Example 984. Example of the tableng opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<div class="refsect1">
<a id="idm281472701976120"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac <span class="c1">;;;realtime audio out</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">; -o tableng.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
gi<span class="n">fn1</span> <span class="nb">ftgen</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="s">"flute.aiff"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">0</span> <span class="c1">;deferred-size table</span>
<span class="kd">instr</span> <span class="nf">1</span>
i<span class="n">size</span> <span class="nb">tableng</span> <span class="mi">1</span>
<span class="nb">print</span> i<span class="n">size</span>
a<span class="n">ndx</span> <span class="nb">phasor</span> <span class="mi">1</span> <span class="o">/</span> <span class="p">(</span>i<span class="n">size</span> <span class="o">/</span> <span class="vg">sr</span><span class="p">)</span> <span class="c1">;play at correct pitch</span>
a<span class="n">sig</span> <span class="nb">tab</span> a<span class="n">ndx</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="p">,</span> a<span class="n">sig</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mf">2.3</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
Its output should include a line like this:
</p>
<pre class="screen">
instr 1: isize = 115506.000
</pre>
<p>
</p>
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<div class="refsect1">
<a id="idm281472880945192"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
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<td>Author: Robin Whittle</td>
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<td>Australia</td>
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<td>May 1997</td>
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