_ttoouuppppeerr() -- ctype Function (libc)

Convert characters to upper case
#iinncclluuddee <ccttyyppee.hh>
iinntt _ttoouuppppeerr(_c) iinntt _c;

The function _ttoouuppppeerr() converts the  character _c to upper case and returns
the converted character.  Unlike the related function ttoouuppppeerr(), _ttoouuppppeerr()
is not guaranteed to work correctly  if it is passed something other than a
lower-case character,  that is, any  character for which  iisslloowweerr() returns
true.

_S_e_e _A_l_s_o
_ttoolloowweerr(), lliibbcc, ttoouuppppeerr()

_N_o_t_e_s
_ttoouuppppeerr() is not  part of the ANSI standard; COHERENT  includes it only to
support old code.  You should use ttoouuppppeerr() instead.
