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FreeBSD 11.0 - man page for nextwctype (freebsd section 3)

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

NAME
nextwctype -- iterate through character classes
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wctype.h> wint_t nextwctype(wint_t ch, wctype_t wct);
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.
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)
HISTORY
The nextwctype() function appeared in FreeBSD 5.4.
BSD
July 21, 2005 BSD