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Why pointer variable sometimes desirable to pass a pointer to a function as an argument?
Frequently, a called function needs to make changes to objects declared in the calling function. For example, the function, scan(), needs to access objects in the calling function to store the data read and converted into an object defined there. Therefore, we supply scan() with the address of objects rather than their values.
Another common use of pointers is to write functions that ''return'' more than one value. As we have seen, every function in C returns a value as the value of the function; however, if a function's meaning includes the return of several pieces of information, this single return value is not sufficient. In these cases, we can have the function return multiple data values indirectly, using pointers.
One might argue that in general processes are more ?exible than threads. For one thing, they can live in two different machines, and communicate via sockets; they are easy to spawn
Why IO devices cannot be connected directly to the system bus? Ans: The IO devices can't be directly connected to the system bus because the following reason A) The data tra
An object model for university system Establishing relationship among various classes in the system is the primary activity. Here, we have a simple model of a University System
The Syntex used to call a screen as dialog box (pop up)is CALL SCREEN STARTING AT ENDING AT
Define cache line. Cache block is used to refer to a set of contiguous address location of some size. Cache block is also referred to as cache line.
How many bits are required at the input of a ladder D/A converter, if it is required to give a resolution of 5mV and if the full scale output is +5V. Find the %age resolution.
Full form of is DHCP: Dynamic Host Control Protocol. It is mainly used to bound MAC Addresses of system. Especially for Wireless System.
Spirit Duplicating Equipment Required Spirit Duplicator (also known as hectograph) Thermal copier (optional) Materials Masters Hectographic carbon COPY pa
How different control function categories help in signalling and control. Events happening outside the exchange on the line units, trunk junctions and inter exchange signalin
The search-based tools initially recognize problem and afterwards suitably give advice on how to correct it. AT Expert from Cray Research is one of the tools being employed for
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