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| <h3 class="section">5.37 <code>strstr</code>—find string segment</h3> |
| |
| <p><a name="index-strstr-405"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <string.h> |
| char *strstr(const char *<var>s1</var>, const char *<var>s2</var>); |
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| </pre> |
| <p><strong>Description</strong><br> |
| Locates the first occurrence in the string pointed to by <var>s1</var> of |
| the sequence of characters in the string pointed to by <var>s2</var> |
| (excluding the terminating null character). |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| Returns a pointer to the located string segment, or a null |
| pointer if the string <var>s2</var> is not found. If <var>s2</var> points to |
| a string with zero length, <var>s1</var> is returned. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>strstr</code> is ANSI C. |
| |
| <p><code>strstr</code> requires no supporting OS subroutines. |
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