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WCTYPE.H 3HEAD "September 22, 2020"
NAME
wctype.h, wctype - wide-character classification and mapping utilities
SYNOPSIS
#include <wctype.h>
DESCRIPTION
The <wctype.h> header defines the following types: wint_t

As described in <wchar.h>.

wctrans_t

A scalar type that can hold values that represent locale-specific character mappings.

wctype_t

As described in <wchar.h>.

The <wctype.h> header defines the following macro name: WEOF

Constant expression of type wint_t that is returned by several MSE functions to indicate end-of-file.

For all functions described in this header that accept an argument of type wint_t, the value is representable as a wchar_t or equals the value of WEOF. If this argument has any other value, the behavior is undefined.

The behavior of these functions is affected by the LC_CTYPE category of the current locale.

Inclusion of the <wctype.h> header can make visible all symbols from the headers <ctype.h>, <stdarg.h>, <stddef.h>, <stdio.h>, <stdlib.h>, <string.h>, <time.h>, and <wchar.h>.

ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
SEE ALSO
iswalpha (3C), iswctype (3C), setlocale (3C), towctrans (3C), towlower (3C), towupper (3C), wctrans (3C), wctype (3C), stdarg (3EXT), locale.h (3HEAD), stddef.h (3HEAD), stdio.h (3HEAD), stdlib.h (3HEAD), string.h (3HEAD), time.h (3HEAD), attributes (7), standards (7)