int xlw::XlfOper4::ConvertToRef(XlfRef& r) const throw()
{
int xlret;
if (lpxloper_ == 0)
return xlretInvXloper;
if (lpxloper_->xltype & xltypeRef)
{
const XLREF& ref=lpxloper_->val.mref.lpmref->reftbl[0];
r = XlfRef (ref.rwFirst, // top
ref.colFirst, // left
ref.rwLast, // bottom
ref.colLast, // right
lpxloper_->val.mref.idSheet); // sheet id
xlret = xlretSuccess;
}
else
{
// see AsDouble
XLOPER tmp;
// Function Coerce calls function Call which sets bit xlbitFreeAuxMem of variable cast,
// so that the memory which Excel allocates to that variable (the reference) is freed
// when the variable goes out of scope.
XlfOper4 cast(&tmp);
xlret = Coerce(xltypeRef,cast);
if (xlret == xlretSuccess)
xlret = cast.ConvertToRef(r);
}
return xlret;
}
/*!
\note In debug build, generates a message if the request is in the range.
*/
XlfOper XlfRef::operator()(WORD r, BYTE c) const
{
#if !defined(NDEBUG)
if (rowbegin_ + r > rowend_ || colbegin_ + c > colend_)
{
std::cerr << __HERE__ << "XlfRef access out of range" << std::endl;
}
#endif
XlfOper res;
res.Set(XlfRef(rowbegin_ + r, colbegin_ + c, sheetId_));
return res;
}