--%>
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 : Software Quality Assurance and Software

    What real-life experience have you gained along with Software Quality Assurance as well as Software Quality Control?

    		•
  • Q : State the term dispatcher State the

    State the term dispatcher.

    		•
  • Q : What do you mean by java AWT What do

    What do you mean by the term java AWT? Describe in brief.

    		•
  • Q : Explain the way to handle the mapping

    Explain the way to handle the mapping form.

    		•
  • Q : How can I get an exact image in a web

    How can I get an exact image in a web page?

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•
  • Q : Define the term Graphical User Interface

    Graphical User Interface: A Graphical User Interface (abbreviated as GUI) is a part of a program which permits user interaction through graphical components, like menus, buttons, text areas, and so forth. Interaction frequently includes the usage of a

    		•
  • Q : Use the Processing program for the

    1. Here is a short program. It prints out the value of a variable "x". Ernie and Bert disagree about what will be printed: Ernie says, the value gets changed in "changeX" so it will print "7", and Bert says, no, when the function exits the changes get reversed and the value goes back to "5". Expl

    		•
  • Q : Describe Throw an exception Throw an

    Throw an exception: Whenever an exceptional circumstance occurs in a program - frequently as an outcome of a logical error and exception object is formed and thrown. When the exception is not caught by an exception handler, the program will finish wit

    		•
  • Q : Illustrates database connection pooling

    Illustrates database connection pooling which is relative to MTS. Answer: This permits MTS to reuse database connections. Pooling of database connections are put to

    		•