WCTYPE.H(3HEAD) Headers WCTYPE.H(3HEAD)
wctype.h, wctype - wide-character classification and mapping
utilities
#include <wctype.h>
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>.
See attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
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)
September 22, 2020 WCTYPE.H(3HEAD)
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)
September 22, 2020 WCTYPE.H(3HEAD)