Maps one wide character to another according to a specified mapping descriptor.
#include <wctype.h> wint_t towctrans (wint_t wc, wctrans_t desc);
The current setting of the LC_CTYPE category must be the same as during the call to the wctrans function that returned the value of desc.
| x | The mapped value of the wc wide character, if this character exists in the mapping described by desc. Otherwise, the value of wc is returned. |