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

6       wctype - wide-character classification
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SYNOPSIS

9       #include <wctype.h>
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11       wctype_t wctype(const char *name);
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DESCRIPTION

14       The  wctype_t  type represents a property which a wide character may or
15       may not have.  In other words, it represents a class  of  wide  charac‐
16       ters.   This type's nature is implementation-dependent, but the special
17       value (wctype_t) 0 denotes an invalid property.  Nonzero wctype_t  val‐
18       ues  can be passed to the iswctype(3) function to actually test whether
19       a given wide character has the property.
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21       The wctype() function returns a property, given by its name.   The  set
22       of  valid names depends on the LC_CTYPE category of the current locale,
23       but the following names are valid in all locales.
24         "alnum" - realizes the isalnum(3) classification function
25         "alpha" - realizes the isalpha(3) classification function
26         "blank" - realizes the isblank(3) classification function
27         "cntrl" - realizes the iscntrl(3) classification function
28         "digit" - realizes the isdigit(3) classification function
29         "graph" - realizes the isgraph(3) classification function
30         "lower" - realizes the islower(3) classification function
31         "print" - realizes the isprint(3) classification function
32         "punct" - realizes the ispunct(3) classification function
33         "space" - realizes the isspace(3) classification function
34         "upper" - realizes the isupper(3) classification function
35         "xdigit" - realizes the isxdigit(3) classification function
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RETURN VALUE

38       The wctype() function returns a property  descriptor  if  the  name  is
39       valid.  Otherwise it returns (wctype_t) 0.
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CONFORMING TO

42       C99.
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NOTES

45       The  behavior  of wctype() depends on the LC_CTYPE category of the cur‐
46       rent locale.
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SEE ALSO

49       iswctype(3)
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COLOPHON

52       This page is part of release 3.25 of the Linux  man-pages  project.   A
53       description  of  the project, and information about reporting bugs, can
54       be found at http://www.kernel.org/doc/man-pages/.
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58GNU                               1999-07-25                         WCTYPE(3)
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