The wctype.h header declares functions that deal with wide character
properties. The following are declared as functions and are also defined
as macros:
iswalnum() |
iswalpha() |
iswblank() |
iswcntrl() |
iswctype() |
iswdigit() |
iswgraph() |
iswlower() |
iswprint() |
iswpunct() |
iswspace() |
iswupper() |
iswxdigit() |
towlower() |
towupper() |
wctype() |
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The following are declared as prototypes only:
towctrans() |
wctrans() |
wctype() |
The wctype.h header defines the types wctrans_t, wctype_t and wint_t.
The wctype.h defines the macro WEOF, which expands to a constant expression
of type wint_t, whose value does not correspond to any
member of the extended character set. The macro WEOF indicates End
Of File (EOF).