towupper
wint_t towupper(wint_t);
c = towupper(c);
code = towupper(code, dp->ctype);
code = towupper(code, dp->ctype);
ctmp = towupper(((u_char)*src << 8) | (u_char)*(src + 1),
ctmp = towupper((u_char)*src, dp->f_ctp);
code = towupper((uint16_t)code, dp->t_ctp);
l = (u_char)towupper(l, dp->t_ctp);
int towupper(int c, void *handle);
mlines->name[0] = towupper(mlines->name[0]);
mlines->name[0] = towupper(mlines->name[0]);
m[j] = towupper(m[j]);
*s = towupper(*s);
ch = towupper(s1.lastch);