| public org.apache.poi.hssf.record.formula.eval.Eval | evaluate(org.apache.poi.hssf.record.formula.eval.Eval[] operands, int srcRow, short srcCol)
double d0 = 0;
double d1 = 0;
ValueEval retval = null;
switch (operands.length) {
default:
retval = ErrorEval.VALUE_INVALID;
break;
case 2:
ValueEval ve = singleOperandEvaluate(operands[0], srcRow, srcCol);
if (ve instanceof NumericValueEval) {
NumericValueEval ne = (NumericValueEval) ve;
d0 = ne.getNumberValue();
}
else if (ve instanceof BlankEval) {
// do nothing
}
else {
retval = ErrorEval.NUM_ERROR;
}
if (retval == null) {
ve = singleOperandEvaluate(operands[1], srcRow, srcCol);
if (ve instanceof NumericValueEval) {
NumericValueEval ne = (NumericValueEval) ve;
d1 = ne.getNumberValue();
}
else if (ve instanceof BlankEval) {
// do nothing
}
else {
retval = ErrorEval.NUM_ERROR;
}
}
}
if (retval == null) {
if (d0 > Integer.MAX_VALUE || d1 > Integer.MAX_VALUE) {
retval = ErrorEval.NUM_ERROR;
}
else {
double d = MathX.nChooseK((int) d0, (int) d1);
retval = (Double.isNaN(d) || Double.isInfinite(d))
? (ValueEval) ErrorEval.NUM_ERROR
: new NumberEval(d);
}
}
return retval;
|
