--%>
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 : Ways in which Java program is less

    Give two ways in which a Java program is less likely to be compromised than the same program written in C++.

    		•
  • Q : Level-triggering interrupt Normal 0

    Normal 0 false false

  • Q : Calculate the summation of 1 to some

    Write two programs to calculate the summation of 1 to some integer n using a function called int summation(int n) a) Using a non recursive solution, with a for(i=1, i<=n; i++) loop and b) using a recursive solution, based on the following conditions summation(n) = summation(n-1

    		•
  • Q : Advantages of Object oriented

    Q. What are the advantages of Object Oriented Programming languages? Explain them. Ans. : Object oriented programming language has following advantages-

    Q : Define the term Swizzling Define the

    Define the term Swizzling: It is the process of recursively writing the contents of an object through object serialization.

    		•
  • Q : State machine to identify three

    Explain a finite state machine which will detect three consecutive coins tosses of one coin which results in heads?

    		•
  • Q : What is Namespace Namespace: It is the

    Namespace: It is the region of a program in which specific identifiers are visible. Java employs packages to give namespaces, and its visibility rules: package, private, protected, public-variously include identifiers within the namespaces.

    		•
  • Q : Define the term Inheritance Inheritance

    Inheritance: It is a feature of object-oriented programming languages in which a sub-type inherits methods and variables from its super-type. The Inheritance is most generally employed as a synonym for class inheritance {class!inheritance}, however in

    		•
  • Q : Different layers in Windows Architecture

    Explain how many different layers comprise in Windows Architecture?

    		•
  • Q : What are Literals What are Literals and

    What are Literals and also state their respective types?

    		•