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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.
ISO/ANSI C, UNIX98
wctrans(3)
The behaviour of wctrans depends on the LC_CTYPE
category of the current locale.
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