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.
Non-zero 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.
CONFORMING TO
C99.
NOTES
The behavior of
wctrans()
depends on the
LC_CTYPE
category of the
current locale.
This page is part of release 3.14 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
