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<span class="refentrytitle">sprintf</span>
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<p>sprintf —
printf-style formatted output to a string variable.
</p>
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<div class="refsect1" title="Description">
<a id="idp45108224"></a>
<h2>Description</h2>
<p>
<span class="emphasis"><em>sprintf</em></span> write printf-style formatted output to a string variable, similarly to the C function sprintf(). <span class="emphasis"><em>sprintf</em></span> runs at i-time only.
</p>
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<div class="refsect1" title="Syntax">
<a id="idp45118752"></a>
<h2>Syntax</h2>
<pre class="synopsis">Sdst <span class="command"><strong>sprintf</strong></span> Sfmt, xarg1[, xarg2[, ... ]]</pre>
</div>
<div class="refsect1" title="Initialization">
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<h2>Initialization</h2>
<p>
<span class="emphasis"><em>Sfmt</em></span> -- format string, has the same format as in printf() and other similar C functions, except length modifiers (l, ll, h, etc.) are not supported. The following conversion specifiers are allowed:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p>d, i, o, u, x, X, e, E, f, F, g, G, c, s</p>
</li>
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<p>
</p>
<p>
<span class="emphasis"><em>xarg1, xarg2, ...</em></span> -- input arguments (max. 30) for format, should be i-rate for all conversion specifiers except %s, which requires a string argument. Integer formats like %d round the input values to the nearest integer.
</p>
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<div class="refsect1" title="Performance">
<a id="idp45122024"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>Sdst</em></span> -- output string variable
</p>
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<div class="refsect1" title="Examples">
<a id="idp45122864"></a>
<h2>Examples</h2>
<p>
Here is an example of the sprintf opcode. It uses the file <a class="ulink" href="examples/sprintf.csd" target="_top"><em class="citetitle">sprintf.csd</em></a>.
</p>
<div class="example">
<a id="idp45123840"></a>
<p class="title">
<strong>Example 790. Example of the sprintf 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 sprintf.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="comment">;the file "impuls20.aiff" can be found in /manual/examples</span>
<span class="oblock">instr</span> 1
ifn <span class="op">=</span> 20
Sname <span class="opc">sprintf</span> "impuls<span class="op">%</span>02d.aiff", ifn
Smsg <span class="opc">sprintf</span> "The file name is<span class="op">:</span> '<span class="op">%</span>s'", Sname
<span class="opc">puts</span> Smsg, 1
asig <span class="opc">soundin</span> Sname
<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 1
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
Its output should include lines like this:
</p>
<pre class="screen">
The file name is: 'impuls20.aiff'
soundin: opened 'impuls20.aiff'
</pre>
<p>
</p>
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<div class="refsect1" title="See Also">
<a id="idp45161400"></a>
<h2>See Also</h2>
<p>
<a class="link" href="sprintfk.html" title="sprintfk"><em class="citetitle">sprintfk</em></a>
</p>
</div>
<div class="refsect1" title="Credits">
<a id="idp45162440"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Istvan Varga</td>
</tr>
<tr>
<td>2005</td>
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