--%>
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 : Business Process Management Describe

    Describe what is Business Process Management (or BPM) in brief.

    		•
  • Q : What is a Micro-chip Micro-chip : It is

    Micro-chip: It is a small electronic device employed to build computers and other electronic equipment. The chips are generally employed to supply the memory and processing components of the computer.

    		•
  • Q : Problem on Planar scintigraphy Let

    Let assume seven PMTs situated around the origin of the x-y coordinates on the face of the Anger camera as illustrated in the figure. The size of the PMTs is 2mm by 2 mm and each PMT has been allocated a number. The single scintillation event yields a response from PM

    		•
  • 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 : How Does Run time data handled into QTP

    How Does Run time data i.e. Parameterization is handled within QTP?

    		•
  • Q : Define Abstract class Abstract class :

    Abstract class: It is a class with the abstract reserved word in its header. The Abstract classes are differentiated by the fact that you might not directly construct objects from them employing the new operator. The abstract class might have zero (0)

    		•
  • Q : Define Finally clause Finally clause :

    Finally clause: This is a part of try statement which is always executed, either subsequent the handling of caught exception, and normal termination of the protected statements.

    		•
  • Q : What are tools require View XHTML

    What are tools require View XHTML Documents?

    		•
  • 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 : Main uses of Virtual memory Illustrate

    Illustrate the main uses of Virtual memory?

    		•