Error handling
The evaluation errors are as follows:
- Missing value: This error occurs when the cell referred in a formula does not hold a value
- Reference out of range: This error occurs when a reference is outside the scope of the spreadsheet
- Circular reference: This error occurs when a cell is referring to itself, directly or indirectly
- Division by zero: This error occurs when the denominator in a division expression is zero
There is also the syntax error that occurs when the user inputs a syntactically incorrect formula.
Error.h
enum ErrorId {SyntaxError, CircularReference, ReferenceOutOfRange, DivisionByZero, MissingValue}; class Error : public exception { public: Error(ErrorId errorId); String ErrorText() const; private: ErrorId errorId; };
Get C++ Windows Programming now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.