утилиты классификации и отображения символов (character classification and mapping utilities)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
wctype.h — wide-character classification and mapping utilities
Синопсис (Synopsis)
#include <wctype.h>
Описание (Description)
Some of the functionality described on this reference page
extends the ISO C standard. Applications shall define the
appropriate feature test macro (see the System Interfaces volume
of POSIX.1‐2017, Section 2.2, The Compilation Environment) to
enable the visibility of these symbols in this header.
The <wctype.h> header shall define the following types:
wint_t As described in <wchar.h>.
wctrans_t A scalar type that can hold values which represent
locale-specific character mappings.
wctype_t As described in <wchar.h>.
The <wctype.h> header shall define the locale_t type as described
in <locale.h>.
The <wctype.h> header shall define the following macro:
WEOF As described in <wchar.h>.
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 shall be affected by the LC_CTYPE
category of the current locale.
Inclusion of the <wctype.h> header may make visible all symbols
from the headers <ctype.h>, <stdarg.h>, <stddef.h>, <stdio.h>,
<stdlib.h>, <string.h>, <time.h>, and <wchar.h>.
The following shall be declared as functions and may also be
defined as macros. Function prototypes shall be provided for use
with ISO C standard compilers.
int iswalnum(wint_t);
int iswalnum_l(wint_t, locale_t);
int iswalpha(wint_t);
int iswalpha_l(wint_t, locale_t);
int iswblank(wint_t);
int iswblank_l(wint_t, locale_t);
int iswcntrl(wint_t);
int iswcntrl_l(wint_t, locale_t);
int iswctype(wint_t, wctype_t);
int iswctype_l(wint_t, wctype_t, locale_t);
int iswdigit(wint_t);
int iswdigit_l(wint_t, locale_t);
int iswgraph(wint_t);
int iswgraph_l(wint_t, locale_t);
int iswlower(wint_t);
int iswlower_l(wint_t, locale_t);
int iswprint(wint_t);
int iswprint_l(wint_t, locale_t);
int iswpunct(wint_t);
int iswpunct_l(wint_t, locale_t);
int iswspace(wint_t);
int iswspace_l(wint_t, locale_t);
int iswupper(wint_t);
int iswupper_l(wint_t, locale_t);
int iswxdigit(wint_t);
int iswxdigit_l(wint_t, locale_t);
wint_t towctrans(wint_t, wctrans_t);
wint_t towctrans_l(wint_t, wctrans_t, locale_t);
wint_t towlower(wint_t);
wint_t towlower_l(wint_t, locale_t);
wint_t towupper(wint_t);
wint_t towupper_l(wint_t, locale_t);
wctrans_t wctrans(const char *);
wctrans_t wctrans_l(const char *, locale_t);
wctype_t wctype(const char *);
wctype_t wctype_l(const char *, locale_t);
The following sections are informative.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
ctype.h(0p), locale.h(0p), stdarg.h(0p), stddef.h(0p),
stdio.h(0p), stdlib.h(0p), string.h(0p), time.h(0p), wchar.h(0p)
The System Interfaces volume of POSIX.1‐2017, Section 2.2, The
Compilation Environment, iswalnum(3p), iswalpha(3p),
iswblank(3p), iswcntrl(3p), iswctype(3p), iswdigit(3p),
iswgraph(3p), iswlower(3p), iswprint(3p), iswpunct(3p),
iswspace(3p), iswupper(3p), iswxdigit(3p), setlocale(3p),
towctrans(3p), towlower(3p), towupper(3p), wctrans(3p),
wctype(3p)
