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103 lines
3.7 KiB
HTML
103 lines
3.7 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>ldiv (The Red Hat newlib C Library)</title>
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<meta name="description" content="ldiv (The Red Hat newlib C Library)">
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<meta name="keywords" content="ldiv (The Red Hat newlib C Library)">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Stdlib.html#Stdlib" rel="up" title="Stdlib">
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<link href="llabs.html#llabs" rel="next" title="llabs">
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</head>
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<body lang="en">
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<a name="ldiv"></a>
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<div class="header">
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<p>
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Next: <a href="llabs.html#llabs" accesskey="n" rel="next">llabs</a>, Previous: <a href="labs.html#labs" accesskey="p" rel="prev">labs</a>, Up: <a href="Stdlib.html#Stdlib" accesskey="u" rel="up">Stdlib</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="ldiv_002d_002d_002ddivide-two-long-integers"></a>
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<h3 class="section">2.21 <code>ldiv</code>—divide two long integers</h3>
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<a name="index-ldiv"></a>
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<p><strong>Synopsis</strong>
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</p><div class="example">
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<pre class="example">#include <stdlib.h>
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ldiv_t ldiv(long <var>n</var>, long <var>d</var>);
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</pre></div>
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<p><strong>Description</strong><br>
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Divide
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<var>n</var>/<var>d</var>,
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returning quotient and remainder as two long integers in a structure <code>ldiv_t</code>.
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</p>
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<br>
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<p><strong>Returns</strong><br>
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The result is represented with the structure
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</p>
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<div class="smallexample">
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<pre class="smallexample"> typedef struct
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{
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long quot;
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long rem;
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} ldiv_t;
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</pre></div>
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<p>where the <code>quot</code> field represents the quotient, and <code>rem</code> the
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remainder. For nonzero <var>d</var>, if ‘<code><var>r</var> = ldiv(<var>n</var>,<var>d</var>);</code>’ then
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<var>n</var> equals ‘<code><var>r</var>.rem + <var>d</var>*<var>r</var>.quot</code>’.
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</p>
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<p>To divide <code>int</code> rather than <code>long</code> values, use the similar
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function <code>div</code>.
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</p>
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<br>
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<p><strong>Portability</strong><br>
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<code>ldiv</code> is ANSI.
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</p>
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<p>No supporting OS subroutines are required.
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</p>
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<br>
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</body>
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</html>
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