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| <h3 class="section">6.21 <code>wcsnlen</code>—get fixed-size wide-character string length</h3> |
| |
| <p><a name="index-wcsnlen-418"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <wchar.h> |
| size_t wcsnlen(const wchar_t *<var>s</var>, size_t <var>maxlen</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| The <code>wcsnlen</code> function computes the number of wide-character codes |
| in the wide-character string pointed to by <var>s</var> not including the |
| terminating L'\0' wide character but at most <var>maxlen</var> wide |
| characters. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| <code>wcsnlen</code> returns the length of <var>s</var> if it is less then <var>maxlen</var>, |
| or <var>maxlen</var> if there is no L'\0' wide character in first <var>maxlen</var> |
| characters. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>wcsnlen</code> is a GNU extension. |
| |
| <p><code>wcsnlen</code> requires no supporting OS subroutines. |
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