Conditional Operator

• Given that A, B, C are expressions; then the expression

                A ? B : C

• has as its value B if A is nonzero, and C otherwise; only expression B or C is evaluated

• In order to generate 1 or 0 for A, it should be a relational or logical expression.

• Expressions B and C must be of the same data type

• If they are not, but are both arithmetic data types, the usual arithmetic conversions are applied to make their types the same

• If one is a pointer and the other is zero, the latter is taken as a null pointer of the same type as the former.
• If one is a pointer to void and the other is a pointer to another type, the latter is converted to a pointer to void, and that is the resulting type.

Example: