--%>
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 : Are you sure that XHTML element name

    Are you sure that XHTML element name case sensitive? Answer: XHTML element names surely are case sensitive. Every element names should be written within lower case l

    		•
  • Q : What is Octal character constant Octal

    Octal character constant: It is a character constant in the form of \ddd, where each d is an octal digit. This might be employed for characters with a Unicode value in the range of 0 to 255.

    		•
  • Q : What is Transmission Control Protocol

    Transmission Control Protocol: It is the Transmission Control Protocol (abbreviated as TCP) is a set of rules which permit reliable communication among two processes across a network.

    		•
  • Q : What is applet? Explain life cycle of

    Ans. Applet: An applet is an application designed to travel over the internet and to be executed on the client machine by a java compatible

    		•
  • Q : Define Little-endian Little-endian : It

    Little-endian: It is a common difference among machines is the order in which they store up the individual bytes of multi-byte numerical data. The little-endian machine stores the lower-order bytes prior to the higher-order bytes.

    		•
  • Q : Questions on java class Array 1.

    1. Suppose we have a class A which has a constructor that takes a single integer. (a) After the following statements have been executed, how many A objects will exist

  • Q : Define Factoring Problem Factoring

    Factoring Problem: Factoring is the action of dividing an integer into a set of smaller integers (or factors) which, when multiplied altogether, form the unique integer. For illustration, the factors of 15 are 3 and 5; the factoring trouble is to find

    		•
  • Q : What is Random Access Memory Random

    Random Access Memory: Random access memory, or RAM, is the memory whose contents are simply accessible to the processing components of a computer. In specific, the time it takes to read and write to a particular portion of the memory does not based on

    		•
  • Q : How can I check while a web page

    How can I check while a web page contains exact text?

    		•
  • Q : Define CORBA Define CORBA ? What does

    Define CORBA? What does it do?

    		•