--%>
Assignment Help - homework help

Use of setjmp and longjmp

Use of setjmp() and longjmp(): In C/C++, setjmp() saves the contents of the registers at a particular state in the program and longjmp() will restore that state later. In this way, longjmp() “returns” to the state of the program when setjmp() was called.

In general these functions are problematic for C++ because they do not support C++ object semantics. In particular, they do not ensure the proper destructor calls and so objects may not be cleaned up properly, leaving the system in a bad state.

Using these functions may also degrade performance by preventing optimization on local variables. For C++ exception handling, try/catch constructs are recommended instead.

214_serjmp.jpg

For model checking in particular, non-hierarchical long jumps are difficult to model with modeling languages like Java. These functions need to do register restoration which requires modeling of registers and their related operations, adding considerable overhead to model-checking effort.

   Related Questions in Programming Languages

  • Q : Explain the term XForms Explain the

    Explain the term XForms.

    		•
  • Q : Search and Partial Coverage of Java

    Search and Partial Coverage: JPF supports well-known search strategies such as BFS and DFS as well as various heuristic-based searches such as A*, Best-First, and Beam Search. You can sum a number of heuristics during the search, and set search depth

    		•
  • Q : Write a program that prints out all

    Write a program that prints out all prime numbers between 1 and 1000. Print the values out ten per line, with digits lined in proper columns.

    		•
  • Q : Define the term Key value Define the

    Define the term Key value: The object employed to produce an associated hash code for look-up in an associative data structure.

    		•
  • Q : What is an Anonymous class Anonymous

    Anonymous class: It is a class formed without a class name. Such a class will be a sub class or an implementation of an interface, and is generally formed as an actual argument or returned as a method outcome. For example:

    Q : Intermediate language concept Describe

    Describe the term Intermediate language? Illustrate in brief.

    		•
  • Q : State HyperText Transfer Protocol

    HyperText Transfer Protocol: The HyperText Transfer Protocol (abbreviated as HTTP) is a set of rules stated to enable a Web client (that is, browser) to interact with the Web server.

    		•
  • Q : Explain Interpreter Interpreter : A

    Interpreter: A program that executes a translated version of the source program by implementing a virtual machine. The interpreters usually simulate the actions of an idealized Central Processing Unit. An interpreter for Java should implement the Java

    		•
  • Q : What is Static initializer Static

    Static initializer: An initializer prefixed with ‘static’ reserved word. The static initializer is stated outside the methods of its enclosing class, and might access only the static fields and methods of its enclosing class.

    		•
  • Q : Explain in process verses out of

    Explain in process verses out of process component.

    		•