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The various memory allocation functions are described below:
(i) malloc( ): It is a memory allocation function that assigns requested size of bytes and returns a pointer to the first byte of the allocated space. The malloc function returns a pointer of type void so we can allocate it to any type of pointer.
(ii) calloc( ): It is another memory allocation function that assigns space for an array of elements, initializes them to zero and then returns a pointer to the memory. This function is normally used for request memory space at run time. Whereas malloc allocates a single block of storage space, calloc allocates multiple block of storage, each of the similar size, and then sets all bytes to zero
(iii) realloc( ): realloc is a memory allocation function that changes the size of previously allocated space. Sometime it may happen that the allocated memory space is larger than what is needed or it is less than what is needed. In both cases, we can change the memory size already allocated with the help of the realloc function called as reallocation of memory
Define Top-down parsing Techniques Top-down parsing can be observed as an attempt to find left-most derivations of an input-stream through searching for parse trees using a top
What is the difference among object oriented and structured oriented programming? Ans) ? Object Oriented means programme will be there in terms of Class and Object connection w
Use a timer interrupt to design a easy digital clock. This clock will count only minutes and seconds, and start at 00:00 every time your program starts. The show on the screen sh
How many select lines will a 16 to 1 multiplexer will have ? Ans. For 16 to 1 MUX four select lines will be needed to select 16 (2 4 ) inputs.
Consider a network message transfer among a source S and a destination D by 3 routers R1, R2 and R3 as given below:- S -------- R1 --------- R2 --------- R3 ---
Accumulator Architecture: An accumulator is anespecially designated register which supplies one instruction operand and receives result. Instructions in such machines are usually
Q. What is the Future of Hyper threading? Current Pentium 4 based MPUs employ Hyper-threading however next-generation cores, Conroe, Merom and Woodcrest will not. As some have
Server can interact with more than one client with using threading concepts there are java threads which are allocated to each client when he logs in to server, the thread handles
Solve the following cryptarithmetic problem using Prolog: P I N G P O N G + F U N --------- I G N I P Each of the 7 different letters stands for a different digit. The
If the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is ? Ans. The final output of the three T-flip-flops in cascade is 12
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