--%>
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 : Define the term Interprocess

    Define the term Interprocess communication: It is the ability of two or more separate processes to communicate with each other.

    		•
  • Q : Compute Days Between Ordering and

    An analyst in the quality assurance office reviews the time lapse between receiving an order and shipping an order. Any orders which have not been shipped in a day of the order being positioned are investigated. Build a function named ORD_SHIP_SF which computes the nu

    		•
  • Q : Explain the way to start a Web Service

    Explain the way to start a Web Service.

    		•
  • Q : C programming assignment help S trings,

    Strings, Pointers, Arrays, Structures, and File I/O in C In this lab you will develop a few programs that will give you some practice with pointers, arrays, str

    		•
  • Q : Interface accessibility modifier Inside

    Inside the interface accessibility modifier we can use for methods?

    		•
  • Q : Define the term Identifier Define the

    Define the term Identifier: It is a programmer-defined name for a method, variable, class and interface.

    		•
  • Q : What is Signal Handler Signal Handlers:

    Signal Handlers: In some operating systems, signal handlers are executed on a thread stack; they “overlay” the current thread execution (which may be used, for example, in combination with setjmp/longjmp to create user-domain lightweight t

    		•
  • Q : What is Avoid Redundancy Avoid

    Avoid Redundancy: While not every form of redundancy is as bad from a verification perspective as it is from a maintenance point of view, behavioral redundancy to re-create (local) state can impose problems because the model checker does not distingui

    		•
  • Q : State the term collection objects in

    State the term collection objects in visual base?

    		•
  • Q : Define Deep copy Deep copy : It is a

    Deep copy: It is a copy of an object in which copies of all the object's sub-components are also prepared. The resultant object may, in effect, be a clone of the novel.

    		•