1WCSCSPN(3) Linux Programmer's Manual WCSCSPN(3)
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6 wcscspn - search a wide-character string for any of a set of wide char‐
7 acters
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10 #include <wchar.h>
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12 size_t wcscspn(const wchar_t *wcs, const wchar_t *reject);
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15 The wcscspn() function is the wide-character equivalent of the strc‐
16 spn() function. It determines the length of the longest initial segment
17 of wcs which consists entirely of wide-characters not listed in reject.
18 In other words, it searches for the first occurrence in the wide-char‐
19 acter string wcs of any of the characters in the wide-character string
20 reject.
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23 The wcscspn() function returns the number of wide characters in the
24 longest initial segment of wcs which consists entirely of wide-charac‐
25 ters not listed in reject. In other words, it returns the position of
26 the first occurrence in the wide-character string wcs of any of the
27 characters in the wide-character string reject, or wcslen(wcs) if there
28 is none.
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31 C99.
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34 strcspn(3), wcspbrk(3), wcsspn(3)
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38GNU 1999-07-25 WCSCSPN(3)