--%>
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 Global variable Global variable

    Global variable: It is a phenomenon which is more generally regarded as being a trouble in structured programming languages than in object-oriented languages. In structured programming language, like C or Pascal, a global variable is one stated outsid

    		•
  • Q : Libraries involved in Windows

    Explain the important libraries involved in Windows programming?

    		•
  • Q : Windows Communication Foundation or WCF

    Why did Microsoft develop the Windows Communication Foundation (WCF) technology?

    		•
  • Q : Explain Array initializer Array

    Array initializer: This is an initializer for an array. The initializer takes the position of separate creation and initialization steps. For example, the initializer int[] pair = { 4, 2, };

    Q : Advantage of wrapping database calls in

    What is the advantage of wrapping database calls in MTS transactions?

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•
  • Q : Define HyperText Markup Language

    HyperText Markup Language: The HyperText Markup Language (abbreviated as HTML) is a simple presentation language employed to markup the content of the Web pages. Its tags appear frequently in pairs to mark sections of text which must be represented in

    		•
  • Q : Define Accessor method Accessor method

    Accessor method: A technique specifically designed to offer access to a private attribute of a class. By convention, we name accessors with a get prefix followed by the name of the attribute being accessed. For example, the accessor for an attribute n

    		•
  • Q : Define Statement Statement : The

    Statement: The fundamental building block of Java method. There are numerous different kinds of statement in Java, for example, the assignment statement, if statement, while loop and return statement.

    		•
  • Q : What is Bit manipulation operator Bit

    Bit manipulation operator: Operators, like &, | and ^, which are employed to examine and manipulate individual bits win the bytes of a data item. The shift operators, <<, >> and >>>, are too bit manipulation operators.

    		•