--%>
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 : Search and Coverage of SPIN Search and

    Search and Coverage of SPIN: SPIN has a highly optimized state exploration algorithm. It supports random, interactive and guided simulation, and both exhaustive and partial coverage, based on either depth-first or breadth-first search.

    Q : Input and output formatting in C++

    Input output formatting in C++: C++ support

    		•
  • Q : Basic Units of CSS Specify the Basic

    Specify the Basic Units of the CSS.

    		•
  • Q : What is High level programming language

    High level programming language: Languages like Ada, Java, C++, and so on which give programmers with features like control structures, classes, methods, packages, and so forth. Such features are mostly independent of any specific instruction set, and

    		•
  • Q : What is Classpath Classpath : The path

    Classpath: The path searched by interpreter and compiler for class definitions. The class path might be set by a command-line argument to either, or through an environment variable.

    		•
  • Q : Define the term Subordinate inner class

    Define the term Subordinate inner class: It is an inner class which executes well-defined subordinate tasks on behalf of its enclosing class.

    		•
  • Q : Explain Method overloading Method

    Method overloading: Two or more techniques with similar name stated within a class are said to be overloaded. This exerts to both constructors and other methods. The overloading applies via a class hierarchy, thus a sub class may overload a method sta

    		•
  • Q : Define Protocol Protocol : It is a set

    Protocol: It is a set of rules for interaction between two processes. The protocol is generally specified in a Uniform Resource Locator (abbreviated as URL) to point out how a specific resource must be transferred from a Web server to the requesting c

    		•
  • Q : Does TestComplete maintain testing of

    Does TestComplete maintain testing of Flex applications?

    		•
  • Q : What is Protected access Protected

    Protected access: Protected access is accessible to a class member prefixed with protected access modifier. This member is accessible to all classes stated within the enclosing package, and any sub-classes expanding the enclosing class.

    		•