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nextwctype(3) [mojave man page]

NEXTWCTYPE(3)						   BSD Library Functions Manual 					     NEXTWCTYPE(3)

NAME
nextwctype, nextwctype_l -- iterate through character classes LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wctype.h> wint_t nextwctype(wint_t ch, wctype_t wct); #include <xlocale.h> wint_t nextwctype_l(wint_t ch, wctype_t wct, locale_t loc); DESCRIPTION
The nextwctype() function determines the next character after ch that is a member of character class wct. If ch is -1, the search begins at the first member of wct. While the nextwctype() function uses the current locale, the .Fn nextwctype_l function may be passed a locale directly. See xlocale(3) for more information. RETURN VALUES
The nextwctype() function returns the next character, or -1 if there are no more. COMPATIBILITY
This function is a non-standard FreeBSD extension and should not be used where the standard iswctype() function would suffice. SEE ALSO
wctype(3), xlocale(3) HISTORY
The nextwctype() function appeared in FreeBSD 5.4. BSD
July 21, 2005 BSD

Check Out this Related Man Page

WCTYPE(3)						   BSD Library Functions Manual 						 WCTYPE(3)

NAME
iswctype, iswctype_l, wctype, wctype_l -- wide character class functions LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <wctype.h> int iswctype(wint_t wc, wctype_t charclass); wctype_t wctype(const char *property); #include <wctype.h> #include <xlocale.h> int iswctype_l(wint_t wc, wctype_t charclass, locale_t loc); wctype_t wctype_l(const char *property, locale_t loc); DESCRIPTION
The wctype() function returns a value of type wctype_t, which represents the requested wide character class and may be used as the second argument for calls to iswctype(). The following character class names are recognised: alnum cntrl ideogram print space xdigit alpha digit lower punct special blank graph phonogram rune upper The iswctype() function checks whether the wide character wc is in the character class charclass. Although the iswctype() and wctype() functions use the current locale, the iswctype_l() and wctype_l() functions may be passed locales directly. See xlocale(3) for more information. RETURN VALUES
The iswctype() function returns non-zero if and only if wc has the property described by charclass, or charclass is zero. The wctype() function returns 0 if property is invalid; otherwise, it returns a value of type wctype_t that can be used in subsequent calls to iswctype(). EXAMPLES
Reimplement iswalpha(3) in terms of iswctype() and wctype(): int myiswalpha(wint_t wc) { return (iswctype(wc, wctype("alpha"))); } SEE ALSO
ctype(3), nextwctype(3), xlocale(3) STANDARDS
The iswctype() and wctype() functions conform to IEEE Std 1003.1-2001 (``POSIX.1''). The ``ideogram'', ``phonogram'', ``special'', and ``rune'' character classes are extensions. HISTORY
The iswctype() and wctype() functions first appeared in FreeBSD 5.0. BSD
March 27, 2004 BSD
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