You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
3.6 KiB
HTML
103 lines
3.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>div (The Red Hat newlib C Library)</title>
|
|
|
|
<meta name="description" content="div (The Red Hat newlib C Library)">
|
|
<meta name="keywords" content="div (The Red Hat newlib C Library)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
|
|
<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Stdlib.html#Stdlib" rel="up" title="Stdlib">
|
|
<link href="ecvt.html#ecvt" rel="next" title="ecvt">
|
|
<link href="calloc.html#calloc" rel="prev" title="calloc">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<a name="div"></a>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="ecvt.html#ecvt" accesskey="n" rel="next">ecvt</a>, Previous: <a href="calloc.html#calloc" accesskey="p" rel="prev">calloc</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>
|
|
</div>
|
|
<hr>
|
|
<a name="div_002d_002d_002ddivide-two-integers"></a>
|
|
<h3 class="section">2.12 <code>div</code>—divide two integers</h3>
|
|
<a name="index-div"></a>
|
|
<p><strong>Synopsis</strong>
|
|
</p><div class="example">
|
|
<pre class="example">#include <stdlib.h>
|
|
div_t div(int <var>n</var>, int <var>d</var>);
|
|
|
|
</pre></div>
|
|
<p><strong>Description</strong><br>
|
|
Divide
|
|
<var>n</var>/<var>d</var>,
|
|
returning quotient and remainder as two integers in a structure <code>div_t</code>.
|
|
</p>
|
|
<br>
|
|
<p><strong>Returns</strong><br>
|
|
The result is represented with the structure
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> typedef struct
|
|
{
|
|
int quot;
|
|
int rem;
|
|
} div_t;
|
|
</pre></div>
|
|
|
|
<p>where the <code>quot</code> field represents the quotient, and <code>rem</code> the
|
|
remainder. For nonzero <var>d</var>, if ‘<code><var>r</var> = div(<var>n</var>,<var>d</var>);</code>’ then
|
|
<var>n</var> equals ‘<code><var>r</var>.rem + <var>d</var>*<var>r</var>.quot</code>’.
|
|
</p>
|
|
<p>To divide <code>long</code> rather than <code>int</code> values, use the similar
|
|
function <code>ldiv</code>.
|
|
</p>
|
|
<br>
|
|
<p><strong>Portability</strong><br>
|
|
<code>div</code> is ANSI.
|
|
</p>
|
|
<p>No supporting OS subroutines are required.
|
|
</p>
|
|
<br>
|
|
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|