goto An unstructured branching statement that causes the logic to jump to a different place in the program. exit A predefined function used to prematurely stop a program and return to the operating system. continue A branching statement that causes a loop to stop its current iteration and begin the next one. break A branching statement that terminates the existing structure. Key Terms branching statements Allow the flow of execution to jump to a different part of the program. It fits the definition of branching which is to jump to some other place in the program. The exit function terminates the running of the program and in the process returns an integer value back to the operating system. If not, we have an error that usually indicates that we want to prematurely stop the execution of the program. A good example is the opening a file and then testing to see if the file was actually opened. some lines of code Īlthough exit is technically a pre-defined function, it is covered here because of its common usage in programming. You use the command word goto followed by the label. ![]() However, some programming languages allow you to create a label with an identifier name followed by a colon. The goto structure is typically not accepted in good structured programming. The break is used in one of two ways with a switch to make it act like a case structure or as part of a looping process to break out of the loop. The following gives the appearance that the loop will execute 8 times, but the break statement causes it to stop during the fifth iteration. Additionally, we will add to our list of branching items a pre-defined function commonly used in programming languages of: exit. The goto is rarely used in modular structured programming. ![]() The common branching statements used within other control structures include: break, continue, return, and goto. Discussionīranching statements allow the flow of execution to jump to a different part of the program. Common branching statements include break, continue, return, and goto. A branch is an instruction in a computer program that can cause a computer to begin executing a different instruction sequence and thus deviate from its default behavior of executing instructions in order.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |