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<div class="refentry" title="else">
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<h2>
<span class="refentrytitle">else</span>
</h2>
<p>else —
Executes a block of code when an "if...then" condition is false.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp19062240"></a>
<h2>Description</h2>
<p>
Executes a block of code when an "if...then" condition is false.
</p>
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<div class="refsect1" title="Syntax">
<a id="idp19062920"></a>
<h2>Syntax</h2>
<pre class="synopsis">
<span class="command">
<strong>else</strong>
</span>
</pre>
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<div class="refsect1" title="Performance">
<a id="idp19092368"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>else</em></span> is used inside of a block of code between the <a class="link" href="if.html" title="if"><em class="citetitle">"if...then"</em></a> and <a class="link" href="endif.html" title="endif"><em class="citetitle">endif</em></a> opcodes. It defines which statements are executed when a "if...then" condition is false. Only one <span class="emphasis"><em>else</em></span> statement may occur and it must be the last conditional statement before the <span class="emphasis"><em>endif</em></span> opcode.
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp19094824"></a>
<h2>Examples</h2>
<p>
Here is an example of the else opcode. It uses the file <a class="ulink" href="examples/else.csd" target="_top"><em class="citetitle">else.csd</em></a>.
</p>
<div class="example">
<a id="idp19095800"></a>
<p class="title">
<strong>Example 201. Example of the else 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>
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o else.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span> <span class="op">=</span> 1
<span class="oblock">instr</span> 1
ipch <span class="op">=</span> <span class="opc">cpspch</span>(p4)
ienv <span class="op">=</span> p5
<span class="octrl">if</span> (ienv <span class="op">==</span> 0) then
kenv <span class="opc">adsr</span> 0.01, 0.95, .7, .5
<span class="octrl">else</span>
kenv <span class="opc">linseg</span> 0, p3 <span class="op">*</span> .5, 1, p3 <span class="op">*</span> .5, 0
<span class="octrl">endif</span>
aout <span class="opc">vco2</span> .8, ipch, 10
aout <span class="opc">moogvcf</span> aout, ipch <span class="op">+</span> (kenv <span class="op">*</span> 6 <span class="op">*</span> ipch) , .5
aout <span class="op">=</span> aout <span class="op">*</span> kenv
<span class="opc">outs</span> aout, aout
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 2 8.00 0
<span class="stamnt">i</span> 1 3 2 8.00 1
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp19098064"></a>
<h2>See Also</h2>
<p>
<a class="link" href="elseif.html" title="elseif"><em class="citetitle">elseif</em></a>,
<a class="link" href="endif.html" title="endif"><em class="citetitle">endif</em></a>,
<a class="link" href="goto.html" title="goto"><em class="citetitle">goto</em></a>,
<a class="link" href="if.html" title="if"><em class="citetitle">if</em></a>,
<a class="link" href="igoto.html" title="igoto"><em class="citetitle">igoto</em></a>,
<a class="link" href="kgoto.html" title="kgoto"><em class="citetitle">kgoto</em></a>,
<a class="link" href="tigoto.html" title="tigoto"><em class="citetitle">tigoto</em></a>,
<a class="link" href="timout.html" title="timout"><em class="citetitle">timout</em></a>
</p>
<p> More information on this opcode: <a class="ulink" href="http://www.csounds.com/journal/2006spring/controlFlow.html" target="_top"><em class="citetitle">http://www.csounds.com/journal/2006spring/controlFlow.html</em></a> , written by Steven Yi </p>
</div>
<div class="refsect1" title="Credits">
<a id="idp19103200"></a>
<h2>Credits</h2>
<p>New in version 4.21</p>
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