wctype(3p) [centos man page]
WCTYPE(3P) POSIX Programmer's Manual WCTYPE(3P) PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
wctype - define character class SYNOPSIS
#include <wctype.h> wctype_t wctype(const char *property); DESCRIPTION
The wctype() function is defined for valid character class names as defined in the current locale. The property argument is a string iden- tifying a generic character class for which codeset-specific type information is required. The following character class names shall be defined in all locales: alnum digit punct alpha graph space blank lower upper cntrl print xdigit Additional character class names defined in the locale definition file (category LC_CTYPE ) can also be specified. The function shall return a value of type wctype_t, which can be used as the second argument to subsequent calls of iswctype(). The wctype() function shall determine values of wctype_t according to the rules of the coded character set defined by character type informa- tion in the program's locale (category LC_CTYPE ). The values returned by wctype() shall be valid until a call to setlocale() that modifies the category LC_CTYPE . RETURN VALUE
The wctype() function shall return 0 if the given character class name is not valid for the current locale (category LC_CTYPE ); otherwise, it shall return an object of type wctype_t that can be used in calls to iswctype(). ERRORS
No errors are defined. The following sections are informative. EXAMPLES
None. APPLICATION USAGE
None. RATIONALE
None. FUTURE DIRECTIONS
None. SEE ALSO
iswctype(), the Base Definitions volume of IEEE Std 1003.1-2001, <wctype.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- 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 . IEEE
/The Open Group 2003 WCTYPE(3P)
Check Out this Related Man Page
WCTRANS(3P) POSIX Programmer's Manual WCTRANS(3P) PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond- ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. NAME
wctrans - define character mapping SYNOPSIS
#include <wctype.h> wctrans_t wctrans(const char *charclass); DESCRIPTION
The wctrans() function is defined for valid character mapping names identified in the current locale. The charclass is a string identifying a generic character mapping name for which codeset-specific information is required. The following character mapping names are defined in all locales: tolower and toupper. The function shall return a value of type wctrans_t, which can be used as the second argument to subsequent calls of towctrans(). The wctrans() function shall determine values of wctrans_t according to the rules of the coded character set defined by character mapping information in the program's locale (category LC_CTYPE ). The values returned by wctrans() shall be valid until a call to setlocale() that modifies the category LC_CTYPE. RETURN VALUE
The wctrans() function shall return 0 and may set errno to indicate the error if the given character mapping name is not valid for the current locale (category LC_CTYPE ); otherwise, it shall return a non-zero object of type wctrans_t that can be used in calls to towc- trans(). ERRORS
The wctrans() function may fail if: EINVAL The character mapping name pointed to by charclass is not valid in the current locale. The following sections are informative. EXAMPLES
None. APPLICATION USAGE
None. RATIONALE
None. FUTURE DIRECTIONS
None. SEE ALSO
towctrans(), the Base Definitions volume of IEEE Std 1003.1-2001, <wctype.h> COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol- ogy -- 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 . IEEE
/The Open Group 2003 WCTRANS(3P)