--%>
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 : Explain Magic number Magic number : It

    Magic number: It is a constant value with significance within a specific context. For example, the value 12 could mean numerous different things - the number of hrs you have worked today, the number of dollars you are payable by a friend, and so forth

    		•
  • Q : What is Discrete simulation Discrete

    Discrete simulation: In a discrete simulation, the time passes at an irregular rate which is determined by the primary events of interest in simulation.

    		•
  • Q : What is testing What is testing?

    What is testing?

    		•
  • Q : What is Central Processing Unit Central

    Central Processing Unit: The Central Processing Unit (that is, CPU) is the heart of a computer as it is the portion that includes the computer's capability to follow instructions. Each kind of CPU has its own instruction set.

    		•
  • Q : Simple Sorting Program in C Shell

    Assignment: Sorting You will write a simple sorting program. This program should be invoked as follows: shell% ./fastsort -i inputfile -o outputfile

    		•
  • Q : What is SLAM SLAM is a Microsoft

    SLAM is a Microsoft project that blurs the line between static analysis and model checking and deductive reasoning. The main goal of SLAM is to check temporal safety properties of C programs (it actually checks that a program correctly uses the interf

    		•
  • Q : What is Bandera Bandera: The main goal

    Bandera: The main goal of Bandera project is to integrate existing programming language processing methods with newly developed methods to provide automated support for the extraction of safe, compact, finite-state models which are suitable for verifi

    		•
  • Q : What is a Pipe Pipe : It is a linkage

    Pipe: It is a linkage between the two program components. One component responds as a source of data, and writes into the pipe. The second components act as a receiver (that is, sink) for the data and reads from pipe.

    		•
  • 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 : Describe Last in-first out Last in,

    Last in, first out: It is the LIFO semantics of a stack data structure. Items are eliminated in the opposite order to which it arrived in the stack; therefore newer items are always eliminated before older ones.

    		•