NAME
wctype —
get character class identifier by
name
LIBRARY
library “libc”
SYNOPSIS
#include
<wctype.h>
wctype_t
wctype(const
char *charclass);
DESCRIPTION
Thewctype()
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
STANDARDS
The wctype() function conforms to
ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment
1”).