Comment

Mixed Types

Rule: arithmetic between integers always is always done between data type int or higher. If an operand is of type char, unsigned char, short, or unsigned short it is promoted to int or higher.

Rule: When two operands are combined with an operation (such as addition), both operands must be of the same data type. Sometimes one of them must be promoted to a "higher" type. In the following list, if two operands are different types, the lowest is promoted to the highest:

• long double
• double
• float
• unsigned long int
• long int
• unsigned int
• int