wctrans(3C) Standard C Library Functions wctrans(3C)NAMEwctrans - 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 information 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 ALSOsetlocale(3C), towctrans(3C), attributes(5), standards(5)SunOS 5.10 14 Aug 2002 wctrans(3C)
