Parenthesizing the operands of the conditional operator can help readability. Hence,

Example:

len = ac_DataLength <= 3 ? ac_DataLength - 1 : ac_DataLength + 1;

should become

Example:

len = (ac_DataLength <= 3) ? (ac_DataLength - 1) : (ac_DataLength + 1);

If the operands are atomic expressions no parentheses are needed. For instance the following is allowed.

Example:

len = (ac_DataLength <= 3) ? ac_DataLength : 3;