NAME
wctype —
get character class identifier
by name
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wctype.h>
wctype_t
wctype(
const char
*charclass);
DESCRIPTION
The
wctype() 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.
RETURN VALUES
wctype() returns:
-
-
- 0
- If charclass does not correspond to a
valid character class name.
-
-
- non-zero
- A character class identifier corresponding to
charclass.
Note: wctype_t is a scalar type, e.g., a pointer.
ERRORS
No errors are defined.
SEE ALSO
iswctype(3),
setlocale(3),
towctrans(3),
wctrans(3)
STANDARDS
The
wctype() function conforms to
ISO/IEC
9899/AMD1:1995 (“ISO C90, Amendment 1”).