1WCSSPN(3)                  Linux Programmer's Manual                 WCSSPN(3)
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NAME

6       wcsspn  -  advance in a wide-character string, skipping any of a set of
7       wide characters
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SYNOPSIS

10       #include <wchar.h>
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12       size_t wcsspn(const wchar_t *wcs, const wchar_t *accept);
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DESCRIPTION

15       The wcsspn() function is the wide-character equivalent of the strspn(3)
16       function.   It  determines the length of the longest initial segment of
17       wcs which consists entirely of wide-characters listed  in  accept.   In
18       other words, it searches for the first occurrence in the wide-character
19       string wcs of a wide-character  not  contained  in  the  wide-character
20       string accept.
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RETURN VALUE

23       The  wcsspn()  function  returns  the  number of wide characters in the
24       longest initial segment of wcs which consists entirely of  wide-charac‐
25       ters  listed in accept.  In other words, it returns the position of the
26       first occurrence in the wide-character string wcs of  a  wide-character
27       not  contained  in  the wide-character string accept, or wcslen(wcs) if
28       there is none.
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ATTRIBUTES

31       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
32       tributes(7).
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34       ┌────────────────────────────────────────────┬───────────────┬─────────┐
35       │Interface                                   │ Attribute     │ Value   │
36       ├────────────────────────────────────────────┼───────────────┼─────────┤
37       │wcsspn()                                    │ Thread safety │ MT-Safe │
38       └────────────────────────────────────────────┴───────────────┴─────────┘
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CONFORMING TO

41       POSIX.1-2001, POSIX.1-2008, C99.
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SEE ALSO

44       strspn(3), wcscspn(3)
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COLOPHON

47       This  page  is  part of release 5.12 of the Linux man-pages project.  A
48       description of the project, information about reporting bugs,  and  the
49       latest     version     of     this    page,    can    be    found    at
50       https://www.kernel.org/doc/man-pages/.
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54GNU                               2021-03-22                         WCSSPN(3)
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