Operators
An operator performs an operation on one or more value-returning code elements. This can mean an arithmetic operation such as addition or multiplication; a concatenation operation that combines two strings into a new string; a comparison operation that determines which of two values is greater; a logical operation evaluating whether two expressions are both true. Operators combined with value-returning code elements such as literals or variables form expressions.
The following is an example of a statement that uses the simple assignment operator (=):
x = 85
In the preceding example, the assignment operator performs the assignment operation: it takes the value on the right side of the operator and assigns it to the variable on the left. Several operators can perform actions in a single expression or statement, as demonstrated below:
x = 85 + y * z ^ 2
In this example, the operations in the expression on the right side of the assignment operator are performed, and the resulting value is assigned to the variable x```, on the left. There is no limit to the number of operators that can be combined into an expression, but an understanding of **Operator Precedence** is necessary to ensure that you get the results you expect.
In This Section
Discusses operators used to perform many familiar arithmetic operations that involve calculation of numeric values represented by literals, variables, other expressions, function and property calls, and constants.
Discusses operators that compare two expressions and return a Boolean value representing the result of the comparison.
Provides information on the + and & operators, which join multiple strings into a single string.
Provides information on operators that compare Boolean expressions and return a Boolean result.
Related Sections
Shows how to combine elements with operators to yield new values.
Provides links to Language Reference topics covering all Encore RPG operators, listed by category.