wctrans — wide-character translation mapping
#include <wctype.h>
wctrans_t wctrans( |
const char * | name) ; |
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
()
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
The wctrans
() function
returns a mapping descriptor if the name
is valid. Otherwise it
returns (wctrans_t)
0.
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