wchar.h, wchar - wide-character handling
#include <wchar.h>
The <wchar.h> header defines the following types:
As described in <stddef.h>.
An integer type capable of storing any valid value of wchar_t or WEOF.
A scalar type of a data object that can hold values which represent locale-specific character classification.
An object type other than an array type that can hold the conversion state information necessary to convert between sequences of (possibly multibyte) characters and wide characters. If a codeset is being used such that an mbstate_t needs to preserve more than two levels of reserved state, the results are unspecified.
As described in <stdio.h>.
As described in <stddef.h>.
As described in <stdarg.h>.
As described in <locale.h>.
The implementation supports one or more programming environments in which the width of wint_t is no greater than the width of type long. The names of these programming environments can be obtained using the confstr(3C) function or the getconf(1) utility.
The <wchar.h> header defines the following macros:
The maximum value representable by an object of type wchar_t.
The minimum value representable by an object of type wchar_t.
Constant expression of type wint_t that is returned by several WP functions to indicate end-of-file.
As described in <stddef.h>.
The tag tm is declared as naming an incomplete structure type, the contents of which are described in the header <time.h>.
Inclusion of the <wchar.h> header can make visible all symbols from the headers <ctype.h>, <string.h>, <stdarg.h>, < stddef.h>, <stdio.h>, <stdlib.h>, and <time.h>.
See attributes(7) for descriptions of the following attributes:
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getconf(1), btowc(3C), confstr(3C), fgetwc(3C), fputwc(3C), fputws(3C), fwide(3C), fwprintf(3C), fwscanf(3C), getwc(3C), getwchar(3C), getws(3C), iswalpha(3C), iswctype(3C), mbrlen(3C), mbrtowc(3C), mbsinit(3C), mbsrtowcs(3C), towlower(3C), towupper(3C), ungetwc(3C), vfwprintf(3C), wcrtomb(3C), wcscoll(3C), wcsftime(3C), wcsrtombs(3C), wcsstr(3C), wcstod(3C), wcstol(3C), wcstoul(3C), wcstring(3C), wcswidth(3C), wcsxfrm(3C), wctob(3C), wctype(3C), wcwidth(3C), wmemchr(3C), wmemcmp(3C), wmemcpy(3C), wmemmove(3C), wmemset(3C), stdarg(3EXT), locale.h(3HEAD), stddef.h(3HEAD), stdio.h(3HEAD), stdlib.h(3HEAD), string.h(3HEAD), time.h(3HEAD), wctype.h(3HEAD), attributes(7), standards(7)