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104 lines
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104 lines
3.7 KiB
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<a name="lldiv"></a>
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Next: <a href="malloc.html#malloc" accesskey="n" rel="next">malloc</a>, Previous: <a href="llabs.html#llabs" accesskey="p" rel="prev">llabs</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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<a name="lldiv_002d_002d_002ddivide-two-long-long-integers"></a>
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<h3 class="section">2.23 <code>lldiv</code>—divide two long long integers</h3>
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<a name="index-lldiv"></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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lldiv_t lldiv(long long <var>n</var>, long 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 long integers in a structure
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<code>lldiv_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 long quot;
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long long rem;
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} lldiv_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>long</code> rather than <code>long long</code> values, use the similar
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function <code>ldiv</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>lldiv</code> is ISO 9899 (C99) compatable.
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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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