--%>
Assignment Help - homework help

Purpose of exec functions

Specify the purpose of exec functions?

E

Expert

Verified

Whenever a process calls one of the exec functions, that particular process is fully replaced through the new program. New program starts its execution from the main function. The processed does not alters across an exec since a new process is not created. However, this function substitutes the current process with the new program from the disk.

   Related Questions in Programming Languages

  • Q : Define Identifiers Define Identifiers

    Define Identifiers and their naming convention in brief?

    		•
  • Q : Embedding C Code-Promela Embedding C

    Embedding C Code: Promela supports the use of embedded C code fragments inside the models through the use of the c_code primitive. 12_c code.jp</span></p> </div> <!-- /comment-box --> </li> </td> </tr><tr> <td> <li> <div class=

    Q : Do I need to know SGML or HTML before

    Do I need to know SGML or HTML before learn XML?

    		•
  • Q : Explain Coupling Coupling : Coupling

    Coupling: Coupling occurs whenever classes are aware of each of other as their instances should interact. The linkage between two classes which might be either weak or strong. Stronger coupling occurs whenever one class has a thorough knowledge of the

    		•
  • Q : Function prototypes Function prototypes

    Function prototypes: Function declaration which specifies the function name, return type and parameter list of the function. Syntax: return_type function_name(type var1, type var2,…

    		•
  • Q : What is validating parser What is

    What is validating parser? Answer: A parser makes sure that an XML document is valid additionally to being well formed.

    		•
  • Q : How much does Symbian Signed

    How much does Symbian Signed certification and testing cost? Answer: Test houses contain their own prices for Symbian Signed testing. So you can check that prices through searching over the internet.

    		•
  • Q : Explain Message passing Message passing

    Message passing: We characterize the object interactions as message passing. The client object sends a message to a server object by invoking a technique from the server's class. Arguments might be passed with the message, and a outcome is returned by

    		•
  • Q : Write a program and estimate pi using

    Consider a dartboard of radius 1. Since the area of the board will be  π r2 = π * 1 *1, it's clear the area of the dartboard is exactly π. The area of a square surrounding the board (circumscribing it) would be 2*2 = 4, sin

    		•
  • Q : What is Factory pattern Factory pattern

    Factory pattern: A pattern of class definition which is employed as a generator of instances of other classes. Frequently employed to form platform- or locale-particular implementations of abstract classes or interfaces. This decreases coupling betwee

    		•