📄 rint.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>rint</title></head><body bgcolor=white><center><font size=2>The Single UNIX &reg; Specification, Version 2<br>Copyright &copy; 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_008_132">&nbsp;</a>NAME</h4><blockquote>rint - round-to-nearest integral value</blockquote><h4><a name = "tag_000_008_133">&nbsp;</a>SYNOPSIS</h4><blockquote><pre><code>#include &lt;<a href="math.h.html">math.h</a>&gt;double rint(double <i>x</i>);</code></pre></blockquote><h4><a name = "tag_000_008_134">&nbsp;</a>DESCRIPTION</h4><blockquote>The<i>rint()</i>function returns the integral value (represented as a <b>double</b>) nearest<i>x</i> in the direction of the current rounding mode.  The currentrounding mode is implementation-dependent.<p>If the current rounding mode rounds toward negative infinity,then<i>rint()</i>is identical to<i><a href="floor.html">floor()</a></i>.If the current rounding mode rounds toward positive infinity, then<i>rint()</i>is identical to<i><a href="ceil.html">ceil()</a></i>.</blockquote><h4><a name = "tag_000_008_135">&nbsp;</a>RETURN VALUE</h4><blockquote>Upon successful completion, the<i>rint()</i>function returns the integer (represented as a double precision number)nearest <i>x</i> in the direction of the current rounding mode.<p>When <i>x</i> is &plusmn;Inf,<i>rint()</i>returns <i>x</i>.<p>If the value of <i>x</i> is NaN, NaN is returned and <i>errno</i> may beset to [EDOM].</blockquote><h4><a name = "tag_000_008_136">&nbsp;</a>ERRORS</h4><blockquote>The<i>rint()</i>function may fail if:<dl compact><dt>[EDOM]<dd>The <i>x</i> argument is NaN.</dl></blockquote><h4><a name = "tag_000_008_137">&nbsp;</a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_138">&nbsp;</a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_139">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_140">&nbsp;</a>SEE ALSO</h4><blockquote><i><a href="abs.html">abs()</a></i>,<i><a href="isnan.html">isnan()</a></i>,<i><a href="math.h.html">&lt;math.h&gt;</a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX &reg; is a registered Trademark of The Open Group.<br>Copyright &copy; 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>
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