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| <h3 class="section">5.40 <code>strxfrm</code>—transform string</h3> |
| |
| <p><a name="index-strxfrm-410"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <string.h> |
| size_t strxfrm(char *restrict <var>s1</var>, const char *restrict <var>s2</var>, |
| size_t <var>n</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| This function transforms the string pointed to by <var>s2</var> and |
| places the resulting string into the array pointed to by |
| <var>s1</var>. The transformation is such that if the <code>strcmp</code> |
| function is applied to the two transformed strings, it returns |
| a value greater than, equal to, or less than zero, |
| correspoinding to the result of a <code>strcoll</code> function applied |
| to the same two original strings. |
| |
| <p>No more than <var>n</var> characters are placed into the resulting |
| array pointed to by <var>s1</var>, including the terminating null |
| character. If <var>n</var> is zero, <var>s1</var> may be a null pointer. If |
| copying takes place between objects that overlap, the behavior |
| is undefined. |
| |
| <p>With a C locale, this function just copies. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The <code>strxfrm</code> function returns the length of the transformed string |
| (not including the terminating null character). If the value returned |
| is <var>n</var> or more, the contents of the array pointed to by |
| <var>s1</var> are indeterminate. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>strxfrm</code> is ANSI C. |
| |
| <p><code>strxfrm</code> requires no supporting OS subroutines. |
| |
| <p><br> |
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