Standard library (libc.a)
wint_t towctrans (wint_t wc, wctrans_t desc) ;
The towctrans function transliterates the wide-character code wc using the mapping described by desc. The current setting of the LC_CTYPE category should be the same as during the call to wctrans that returned the value desc. If the value of desc is invalid (that is, not obtained by a call to wctrans or desc is invalidated by a subsequent call to setlocale that has affected category LC_CTYPE) the result is implementation-dependent.
If successful, the towctrans function returns the mapped value of wc using the mapping described by desc. Otherwise it returns wc unchanged.
The towctrans function may fail if:
|EINVAL||desc contains an invalid transliteration descriptor.|
This subroutine is part of Base Operating System (BOS) subroutine.
The towlower (towlower Subroutine) subroutine, towupper (towupper Subroutine) subroutine, wctrans (wctrans Subroutine) subroutine.
The wctype.h file.