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- <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.
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