Open System Services Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

OSS Library Calls (w - z) wctype(3)
punct Punctuation character (No characters in alpha, digit, cntrl, or the space charac-
ter are included.)
space Space characters. At a minimum, the space, form-feed, newline, carriage-return,
tab, and vertical-tab characters are included in this class
upper Uppercase character. At a minimum, the 26 uppercase US-ASCII characters are
included in this class. These are:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
xdigit Hexadecimal character. The following characters are included in this class:
0123456789ABCDEFabcdef
RETURN VALUES
Upon successful completion, the wctype( ) function returns a value of type wctype_t, which is a
handle for valid property names in the current locale. Otherwise, it returns the value 0 cast to
wctype_t if the property parameter specifies a character class that is not valid for the current
locale.
RELATED INFORMATION
Files: locale(4).
Functions: iswalnum(3), iswctype(3), setlocale(3), wctype(3).
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