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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 cur-
       rent locale.
SEE ALSO
       towctrans(3)
COLOPHON
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       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at
       https://www.kernel.org/doc/man-pages/.
GNU                               2015-08-08                        WCTRANS(3)