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| <h3 class="section">6.24 <code>wcsspn</code>—get length of a wide substring</h3> |
| |
| <p><strong>Synopsis</strong> |
| <pre class="example"> #include <wchar.h> |
| size_t wcsspn(const wchar_t *<var>s</var>, const wchar_t *<var>set</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| The <code>wcsspn</code> function computes the length of the maximum initial |
| segment of the wide-character string pointed to by <var>s</var> which consists |
| entirely of wide-character codes from the wide-character string |
| pointed to by <var>set</var>. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| The wcsspn() function returns the length <var>s1</var>; no return value is |
| reserved to indicate an error. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>wcsspn</code> is ISO/IEC 9899/AMD1:1995 (ISO C). |
| |
| <p>No supporting OS subroutines are required. |
| |
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