Code inspection: Constant shift expression with non-zero operands results in a zero value

Some constant shift expressions look meaningful but always evaluate to zero because all significant bits are shifted out. This inspection reports constant shift expressions with non-zero operands whose result is always zero.

Example

                class Example
                {
                    void Test()
                    {
                        var value = 1 << 40;
                    }
                }
            

                class Example
                {
                    void Test()
                    {
                        var value = (long)1 << 40;
                    }
                }
            

Quick-fix

If widening the left operand preserves the intended value, the quick-fix casts it to a wider type. In other cases, the right fix is usually to change the shift count or use a wider left operand explicitly.

01 April 2026