--%>
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 : What is an Arithmetic expression

    Arithmetic expression: It is an expression comprising numerical values of integer or floating point kinds. For example, operators like +, -, *, / and % get arithmetic expressions as their operands and generate arithmetic values as their outcomes.

    		•
  • Q : Acknowledge inside a transaction Normal

    Normal 0 false false

  • Q : Explain Virtual memory Virtual memory :

    Virtual memory: It is computer will comprise a limited amount of real memory accessible to it. Programs frequently need more memory than the quantity of real memory. Moreover, in a multiprogramming system, various processes will be competing for simil

    		•
  • Q : How does XML maintain white-space in

    How does XML maintain white-space in any documents?

    		•
  • Q : State the term GPC and GPT State the

    State the term GPC and GPT.

    		•
  • Q : Define Sign bit Sign bit : In

    Sign bit: In 2s-complement notation, the most important bit in an integer value is employed to determine the sign of the value. A 1-bit point out a negative number and a 0 bit point out a positive number.

    		•
  • Q : Explain Cohesion Cohesion : The level

    Cohesion: The level to which a component executes a single well-stated task. A strongly cohesive technique, for example, will execute a single task, like adding an item to a data structure, or sorting several data, while a weakly cohesive technique wi

    		•
  • Q : Define the term Interface inheritance

    Interface inheritance: Whenever a class implements an interface, the interface inheritance relationship exists among them. The class inherits no implementation from interface, just method signatures and static variables. It is as well possible for one

    		•
  • Q : Subroutine in the programming Describe

    Describe the number of ways that an argument is passed to a subroutine in the programming?

    		•
  • Q : Define the term Local inner class and

    Define the term Local inner class and Local variable: Local inner class: It is an inner class stated in a method. Local variable: It is a variable defined within

    		•