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| 22 | <title>Complete Example (GNU C Language Manual)</title>
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| 31 | <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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| 32 | <link href="Complete-Program.html" rel="up" title="Complete Program">
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| 33 | <link href="Complete-Explanation.html" rel="next" title="Complete Explanation">
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| 57 | <body lang="en">
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| 58 | <span id="Complete-Example"></span><div class="header">
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| 59 | <p>
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| 60 | Next: <a href="Complete-Explanation.html" accesskey="n" rel="next">Complete Explanation</a>, Up: <a href="Complete-Program.html" accesskey="u" rel="up">Complete Program</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Index.html" title="Index" rel="index">Index</a>]</p>
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| 61 | </div>
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| 62 | <hr>
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| 63 | <span id="Complete-Program-Example"></span><h3 class="section">2.1 Complete Program Example</h3>
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| 64 |
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| 65 | <p>Here is the complete program that uses the simple, recursive version
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| 66 | of the <code>fib</code> function (see <a href="Recursive-Fibonacci.html">Recursive Fibonacci</a>):
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| 67 | </p>
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| 68 | <div class="example">
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| 69 | <pre class="example">#include <stdio.h>
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| 70 |
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| 71 | int
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| 72 | fib (int n)
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| 73 | {
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| 74 | if (n <= 2) /* <span class="roman">This avoids infinite recursion.</span> */
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| 75 | return 1;
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| 76 | else
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| 77 | return fib (n - 1) + fib (n - 2);
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| 78 | }
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| 79 |
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| 80 | int
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| 81 | main (void)
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| 82 | {
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| 83 | printf ("Fibonacci series item %d is %d\n",
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| 84 | 20, fib (20));
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| 85 | return 0;
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| 86 | }
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| 87 | </pre></div>
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| 88 |
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| 89 | <p>This program prints a message that shows the value of <code>fib (20)</code>.
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| 90 | </p>
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| 91 | <p>Now for an explanation of what that code means.
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| 92 | </p>
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| 93 |
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| 94 |
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| 95 |
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| 96 | </body>
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| 97 | </html>
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