WCTRANS(3)                                                              Linux Programmer's Manual                                                             WCTRANS(3)

NAME
       wctrans - wide-character translation mapping

SYNOPSIS
       #include <wctype.h>

       wctrans_t wctrans(const char *name);

DESCRIPTION
       The  wctrans_t type represents a mapping which can map a wide character to another wide character.  Its nature is implementation-dependent, but the special value
       (wctrans_t) 0 denotes an invalid mapping.  Nonzero wctrans_t values can be passed to the towctrans(3) function to actually perform the wide-character mapping.

       The wctrans() function returns a mapping, given by its name.  The set of valid names depends on the LC_CTYPE category of the current locale,  but  the  following
       names are valid in all locales.

           "tolower" - realizes the tolower(3) mapping
           "toupper" - realizes the toupper(3) mapping

RETURN VALUE
       The wctrans() function returns a mapping descriptor if the name is valid.  Otherwise, it returns (wctrans_t) 0.

ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬────────────────┐
       │Interface                                                                                                                      │ Attribute     │ Value          │
       ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │wctrans()                                                                                                                      │ Thread safety │ MT-Safe locale │
       └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴────────────────┘

CONFORMING TO
       POSIX.1-2001, POSIX.1-2008, C99.

NOTES
       The behavior of wctrans() depends on the LC_CTYPE category of the current locale.

SEE ALSO
       towctrans(3)

GNU                                                                            2021-03-22                                                                     WCTRANS(3)