Transforms a character.
wint_t towctrans( wint_t c, wctrans_t category );
The character you want to transform.
An identifier that contains the return value of wctrans.
The character c, after towctrans used the transform rule in category.
The value of category must have been returned by an earlier successful call to wctrans.
For additional compatibility information, see Compatibility in the Introduction.
See wctrans for a sample that uses towctrans.