Code inspection: Possible overflow in 'checked' context

This inspection reports arithmetic on int values that can overflow in a checked context. In a checked context, such overflow throws an exception at runtime.

Example

            checked
            {
                int value = int.MaxValue + 1;
            }
        

This code throws because the result is outside the valid int range.

How to fix it

There is no dedicated quick-fix for this inspection. Typical fixes are to use a wider type, validate the input before the operation, or change the arithmetic so overflow cannot happen.

            checked
            {
                long value = (long)int.MaxValue + 1;
            }
        

01 April 2026