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| <h3 class="section">5.7 <code>memcmp</code>—compare two memory areas</h3> |
| |
| <p><a name="index-memcmp-377"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <string.h> |
| int memcmp(const void *<var>s1</var>, const void *<var>s2</var>, size_t <var>n</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| This function compares not more than <var>n</var> characters of the |
| object pointed to by <var>s1</var> with the object pointed to by <var>s2</var>. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The function returns an integer greater than, equal to or |
| less than zero according to whether the object pointed to by |
| <var>s1</var> is greater than, equal to or less than the object |
| pointed to by <var>s2</var>. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>memcmp</code> is ANSI C. |
| |
| <p><code>memcmp</code> requires no supporting OS subroutines. |
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