--%>
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 : Write a program using simple loop

    Objective:  The purpose of this problem is to gain experience with the principles necessary to write a program using simple loop, decision processing, counters and accumulators Save the Barns, a bi-partisan po

    		•
  • Q : Define Static nested class Static

    Static nested class: It is a nested class with static reserved word in its header. Dissimilar inner classes, objects of static nested classes contain no enclosing object. They are as well termed as nested top-level classes.

    		•
  • Q : Explain Relative filename Relative

    Relative filename: It is a filename whose full path is associative to some point within a file system tree-frequently the present working folder (that is, directory). For example:   

    		•
  • Q : Define the term Dynamic type Define the

    Define the term Dynamic type: This type of an object is the name of the class employed to construct it.

    		•
  • Q : How much does Symbian Signed

    How much does Symbian Signed certification and testing cost? Answer: Test houses contain their own prices for Symbian Signed testing. So you can check that prices through searching over the internet.

    		•
  • Q : Describe Software reuse Software reuse

    Software reuse: It is the ability to reuse software components in various contexts. The object-oriented languages aid to encourage reuse by their support of encapsulation.

    		•
  • Q : What is the way to render XForms What

    What is the way to render XForms?

    		•
  • Q : Acknowledge inside a transaction Normal

    Normal 0 false false

  • Q : Examples in Threading in Java I need

    I need urgent help in Examples of Threading in Java

    		•
  • Q : ArrayLists I. The Assignment The

    I. The Assignment The Bashemin Parking Garage contains a single lane that can hold up to ten cars.  Arriving cars enter the garage at the rear and are parked in the empty space nearest to the front.  Departing cars exit only from the front.  If a cu

    		•