Return Statements - The function body A function call yields a value Therefore execution of a function body must terminate by executing a

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Return Statements Execution of a return statement terminates execution of the method body and, hence, of the method call. The return statement in the body of a function differs from the return statement in a procedure or constructor. See below. The procedure and constructor bodies When a procedure or constructor is called, the statements in its body are executed one at a time, in the order in which they appear. During this execution, execution of the statement: return; terminates execution of the body, and thus of the procedure or constructor call —no further statement in the body is executed, once a return-statement is executed. A return- statement need not be included in the body of a procedure or constructor, but sometimes a body may be easier to write using a return-statement.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The function body A function call yields a value. Therefore, execution of a function body must terminate by executing a return-statement of the form return <expression> ; where the type of the <expression> is the same as (or narrower than) the type of the result of the function. Execution of such a return-statement terminates the function body, and, thus, the function call, and yields the value of the<expression> as the result of the call. Since execution of a function body must terminate with execution of a return-statement, the last statement of a function body is usually a return-statement. However, return-statements may appear in other places as well. ©2005 Cornell University...
View Full Document

This note was uploaded on 07/07/2008 for the course CS 101 taught by Professor Gries during the Spring '08 term at Cornell University (Engineering School).

Ask a homework question - tutors are online