Coding Standards for Database Files › Coding Standards for COBOL Programs › Handling Dates in COBOL › COBOL Job Name/Operator ID › Calculation Checks

Calculation Checks

When carrying out calculations, always test that a divisor is not zero before dividing with it.

Example of testing divisor value:

• If a calculation result field for a report or display overflows, fill it with 999s.
• Unless specifically told not to, always half-adjust when adding together two fields of different precision levels.