Originální popis anglicky:
wctype.h - wide-character classification and mapping utilities
Návod, kniha: POSIX Programmer's Manual
#include <wctype.h>
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 IEEE Std 1003.1-2001,
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 following shall be declared as functions and may also be defined as macros.
Function prototypes shall be provided.
int iswalnum(wint_t);
int iswalpha(wint_t);
int iswblank(wint_t);
int iswcntrl(wint_t);
int iswdigit(wint_t);
int iswgraph(wint_t);
int iswlower(wint_t);
int iswprint(wint_t);
int iswpunct(wint_t);
int iswspace(wint_t);
int iswupper(wint_t);
int iswxdigit(wint_t);
int iswctype(wint_t, wctype_t);
wint_t towctrans(wint_t, wctrans_t);
wint_t towlower(wint_t);
wint_t towupper(wint_t);
wctrans_t wctrans(const char *);
wctype_t wctype(const char *);
The
<wctype.h> header shall define 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 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 sections are informative.
None.
None.
None.
<ctype.h> ,
<locale.h> ,
<stdarg.h> ,
<stddef.h> ,
<stdio.h> ,
<stdlib.h> ,
<string.h> ,
<time.h> ,
<wchar.h> , the
System Interfaces volume of IEEE Std 1003.1-2001,
iswalnum(),
iswalpha(),
iswblank(),
iswcntrl(),
iswctype(),
iswdigit(),
iswgraph(),
iswlower(),
iswprint(),
iswpunct(),
iswspace(),
iswupper(),
iswxdigit(),
setlocale(),
towctrans(),
towlower(),
towupper(),
wctrans(),
wctype()
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
