--%>
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 : State the term SOAP and explain its

    State the term SOAP and explain its relation with XML.

    		•
  • Q : What is an Interrupt Interrupt : This

    Interrupt: This is an asynchronous message sent to a process or thread which interrupts what it is at present doing. This generally outcomes in an InterruptedException object being received by an interrupted thread. Waiting for an int

    		•
  • Q : Describe Uninitialized variable

    Uninitialized variable: It is a local variable which been declared, however has had no value allocated to it. The compiler will warn of variables that are employed before being initialized.

    		•
  • Q : What is an Internet Service Provider

    Internet Service Provider: It is an Internet Service Provider (abbreviated as ISP) gives connections to the Internet for users who do not contain their own network. The ISP gives such user with their own IP address which enables them to interact with

    		•
  • Q : Which kernel objects is utilize for

    Which kernel objects is utilize for thread Synchronization on various processes? Answer: For thread synchronization on various processes kernel objects are utilize

    		•
  • Q : Who is liable for XML Who is liable for

    Who is liable for XML?

    		•
  • Q : Define Inner class Inner class : A

    Inner class: A class defined within an enclosing method or class. We use the word to refer to non-static nested classes.

    		•
  • Q : How Java client access Corba A Corba

    A Corba remote object exists. How could you get a Java client to access this object?

    		•
  • Q : What is an Iterator pattern Iterator

    Iterator pattern: It is a common pattern in which the contents of a collection are iterated above in order. The Iterator pattern frees a client of data from requiring details of how the data is stored. This pattern is maintained by the Iterator and Li

    		•
  • Q : Database management information system

    How much would it cost to create a simple database management information system by utilizing MySQL and PHP?The proposal of the system should include the following: Background narrative of setting and background of problem m

    		•