wctype_t
wctype(
const char *charclass
)
)
function returns a character class identifier corresponding to the
locale-specific character class name
charclass
.
This identifier can be used in subsequent calls of
iswctype(
).
The following names are defined in all locales:
alnum alpha blank cntrl digit graph
lower print punct space upper xdigit
The behaviour of
wctype()
is affected by the
LC_CTYPE
category of the current locale.
)
returns:
charclass
does not correspond to a valid character class name.
charclass
.
Note: wctype_t is a scalar type, e.g., a pointer.
)
function conforms to
ISO/IEC 9899/AMD1:1990 (``ISO C90'') .