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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.
Explain the E-cheques verses Credit Cards in brief. E-cheques: E-cheques are utilized for business dealing into e-commerce. Transactions of such cheques take place onto Inter
Amdahl's law is suitable for applications where response time is critical. On the other hand, there are a lot of applications which need that accuracy of the resultant output shoul
Q. How are the instructions executed and interpreted? All computers have a Unit which performs arithmetic and logical functions. This Unit is called as Arithmetic and Logic Uni
It is possible to enter one or more criteria in the rows which can influence your database significantly. >="Callahan" this returns all the several records from Callahan to the
Signaling - Universal Serial Bus: USB supports following signaling rates: o A low speed rate of 1.5 Mbit/s is defined by USB 1.0. This is so much similar to "full speed"
Define memory address map? Addressing of memory can be established by means of a table that specifies the memory address assigned to each chip. The tables, known as memory addr
The no of decimal places for output can be describes within a write statement. This statement is right. Write:/ decimals 2.
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Reduced Instruction Set Computer (RISC): As we discussed before most of the modern CPUs are of the GPR (General Purpose Register) type. A few instances of such type of CPUs ar
Design a MOD-6 synchronous counter using J-K Flip-Flops. Ans: Design of Mod-6 Counter: To design the Mod-6 synchronous counter, contain six counter states (that is, from
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