<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>qnan</title> <link rel="stylesheet" type="text/css" href="csound.css" /> <link rel="stylesheet" type="text/css" href="syntax-highlighting.css" /> <meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /> <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" /> <link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" /> <link rel="prev" href="qinf.html" title="qinf" /> <link rel="next" href="r2c.html" title="r2c" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">qnan</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="qinf.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="r2c.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="qnan"></a> <div class="titlepage"></div> <a id="IndexQnan" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">qnan</span> </h2> <p>qnan — Questions whether the argument is not a number </p> </div> <div class="refsect1"> <a id="idm281472896994760"></a> <h2>Description</h2> <p> Returns the number of times the argument is not a number. </p> </div> <div class="refsect1"> <a id="idm281472896993384"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>qnan</strong></span>(x) (no rate restriction)</pre> </div> <div class="refsect1"> <a id="idm281472896942088"></a> <h2>Examples</h2> <p> Here is an example of the qnan opcode. It uses the file <a class="ulink" href="examples/qnan.csd" target="_top"><em class="citetitle">qnan.csd</em></a>. </p> <div class="example"> <a id="idm281472896940312"></a> <p class="title"> <strong>Example 800. Example of the qnan 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="idm281472718378680"></a> <pre class="programlisting"> <span class="nt"><CsoundSynthesizer></span> <span class="nt"><CsOptions></span> -+rtaudio=alsa -o dac:hw:0 <span class="nt"></CsOptions></span> <span class="nt"><CsInstruments></span> <span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span> <span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">400</span> <span class="cp">#define</span> <span class="cp">WII_B</span> <span class="p">#</span><span class="cp">3</span><span class="p">#</span> <span class="cp">#define</span> <span class="cp">WII_A</span> <span class="p">#</span><span class="cp">4</span><span class="p">#</span> <span class="cp">#define</span> <span class="cp">WII_R_A</span> <span class="p">#</span><span class="cp">304</span><span class="p">#</span> <span class="cp">#define</span> <span class="cp">WII_PITCH</span> <span class="p">#</span><span class="cp">20</span><span class="p">#</span> <span class="cp">#define</span> <span class="cp">WII_ROLL</span> <span class="p">#</span><span class="cp">21</span><span class="p">#</span> gk<span class="n">cnt</span> <span class="nb">init</span> <span class="mi">1</span> <span class="kd">instr</span> <span class="nf">1</span> i<span class="n">1</span> <span class="nb">wiiconnect</span> <span class="mi">3</span><span class="p">,</span><span class="mi">1</span> <span class="nb">wiirange</span> <span class="cp">$WII_PITCH.</span><span class="p">,</span> <span class="o">-</span><span class="mi">20</span><span class="p">,</span> <span class="mi">0</span> k<span class="n">t</span> <span class="nb">wiidata</span> <span class="cp">$WII_B.</span> k<span class="n">a</span> <span class="nb">wiidata</span> <span class="cp">$WII_A.</span> k<span class="n">ra</span> <span class="nb">wiidata</span> <span class="cp">$WII_R_A.</span> gk<span class="n">a</span> <span class="nb">wiidata</span> <span class="cp">$WII_PITCH.</span> gk<span class="n">p</span> <span class="nb">wiidata</span> <span class="cp">$WII_ROLL.</span> <span class="c1">; If the B (trigger) button is pressed then activate a note</span> <span class="k">if</span> <span class="p">(</span>k<span class="n">t</span><span class="o">==</span><span class="mi">0</span><span class="p">)</span> <span class="k">goto</span> <span class="nl">ee</span> <span class="k">if</span> <span class="p">(</span><span class="nb">qnan</span><span class="p">(</span>gk<span class="n">a</span><span class="p">))</span> <span class="k">goto</span> <span class="nl">ee</span> <span class="k">if</span> <span class="p">(</span><span class="nb">qnan</span><span class="p">(</span>gk<span class="n">p</span><span class="p">))</span> <span class="k">goto</span> <span class="nl">ee</span> <span class="nb">event</span> <span class="s">"i"</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">5</span> gk<span class="n">cnt</span> <span class="o">=</span> gk<span class="n">cnt</span> <span class="o">+</span> <span class="mi">1</span> <span class="nb">printk2</span> k<span class="n">b</span> <span class="kd">endin</span> <span class="kd">instr</span> <span class="nf">2</span> a<span class="n">1</span> <span class="nb">oscil</span> <span class="nb">ampdbfs</span><span class="p">(</span>gk<span class="n">a</span><span class="p">),</span> <span class="mi">440</span><span class="o">+</span>gk<span class="n">p</span><span class="p">,</span> <span class="mi">1</span> <span class="nb">outs</span> a<span class="n">1</span><span class="p">,</span> a<span class="n">1</span> <span class="kd">endin</span> <span class="nt"></CsInstruments></span> <span class="nt"><CsScore></span> <span class="nb">f</span><span class="mi">1</span> <span class="mi">0</span> <span class="mi">4096</span> <span class="mi">10</span> <span class="mi">1</span> <span class="nb">i</span><span class="mi">1</span> <span class="mi">0</span> <span class="mi">300</span> <span class="nt"></CsScore></span> <span class="nt"></CsoundSynthesizer></span> </pre> </div> </div> </div> <p><br class="example-break" /> </p> </div> <div class="refsect1"> <a id="idm281472896936152"></a> <h2>Credits</h2> <p>Written by John ffitch.</p> <p>New in Csound 5.14</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="qinf.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="OpcodesTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="r2c.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">qinf </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> r2c</td> </tr> </table> </div> </body> </html>