NAME

       wctrans - wide-character translation mapping

LIBRARY

       Standard C library (libc, -lc)

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 │
       └────────────────────────────────────────────────────────┴───────────────┴────────────────┘

STANDARDS

       C11, POSIX.1-2008.

HISTORY

       POSIX.1-2001, C99.

NOTES

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

SEE ALSO

       towctrans(3)