wctrans(3C) Standard C Library Functions wctrans(3C)
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 returns a value of type wctrans_t, which can be used as the second argument to subsequent calls of towctrans(3C). The
wctrans() function determines values of wctrans_t according to the rules of the coded character set defined by character mapping informa-
tion in the program's locale (category LC_CTYPE). The values returned by wctrans() are valid until a call to setlocale(3C) that modifies
the category LC_CTYPE.
RETURN VALUES
The wctrans() function returns 0 if the given character mapping name is not valid for the current locale (category LC_CTYPE), otherwise it
returns a non-zero object of type wctrans_t that can be used in calls to towctrans(3C).
ERRORS
The wctrans() function may fail if:
EINVAL The character mapping name pointed to by charclass is not valid in the current locale.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe with exceptions |
+-----------------------------+-----------------------------+
SEE ALSO
setlocale(3C), towctrans(3C), attributes(5), standards(5)
SunOS 5.10 14 Aug 2002 wctrans(3C)
