--%>
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 Common Gateway Interface Common

    Common Gateway Interface: The Common Gateway Interface (abbreviated as CGI) is a standard which permits Web clients to interact with programs on Web server. The CGI script is on the server and is able to process arguments or input from a client, and r

    		•
  • Q : What is an Integer What is an Integer :

    What is an Integer: It is a negative or positive whole number. The primitive types are: short, byte, int and long are utilized to hold integer values in narrower or broader ranges.

    		•
  • Q : Define Micro-Controller Define

    Define Micro-Controller.

    		•
  • Q : Explain Two dimensional array Two

    Two dimensional array: A two dimensional array is a continuous memory location having similar kind of data arranged in row and column format (such as a matrix structure). D

    		•
  • Q : Problem on three dimensional diagram of

    Create a three dimensional diagram of function z = (x-2)2 + (y-3)3.

    		•
  • Q : Phenomenon of page fault Explain the

    Explain the phenomenon of page fault?

    		•
  • Q : Explain Command-line argument

    Command-line argument: The arguments passed to a program whenever it is run. The Java program receives such in the single formal argument to its major method: public static void main(String[] args)

    		•
  • Q : Define Object serialization Object

    Object serialization: The writing of an object's contents in such a manner that its state can be restored, either at a later time, or in a different procedure. This can be employed to store objects between runs of a program, or to transfer or shifts o

    		•
  • Q : Define Case sensitive Case sensitive :

    Case sensitive: The test which is sensitive to whether a character is in upper-case (example, 'A') or lower-case (example, 'a').

    		•
  • Q : Define Formal argument Formal argument

    Formal argument: The definition of a method’s argument is the part of a method header. Each and every formal argument has an associated type. Whenever a method is called, the actual argument values are copied into the analogous formal arguments.

    		•