Computer Science Write a C program that calls malloc() 1001 times allocating blocks of size 4 each. Use type char * to store the pointers returned by malloc(). When done, print the difference in the addresses of the first and last block allocated. This difference is the amount of memory malloc actually used to create 1000 blocks of size 4. It is a lot more than you would expect. Repeat this for other block sizes and make a table of your results. Do you see any pattern? Any guesses why?

Computer Science Write a C program that calls malloc() 1001 times allocating blocks of size 4 each. Use type char * to store the pointers returned by malloc(). When done, print the difference in the addresses of the first and last block allocated. This difference is the amount of memory malloc actually used to create 1000 blocks of size 4. It is a lot more than you would expect. Repeat this for other block sizes and make a table of your results. Do you see any pattern? Any guesses why?

Name: Computer ScienceWrite a C program that calls malloc() 1001 times alloc
Uploaded: 2024-03-20T06:51:23.000Z
Channel: Bartleby
Description: Computer ScienceWrite a C program that calls malloc() 1001 times allocating blocks of size 4 each. Use type char * to store the pointers returned by malloc(). When done, print the difference in the addresses of the first and last block allocated. Thi

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter12: Points, Classes, Virtual Functions And Abstract Classes

Section: Chapter Questions

Problem 19SA

See similar textbooks

Similar questions

How can one simply copy a collection of shared pointers into another array using the C++ programming language? Create a list of potential answers to the problems you've been presented with in this scenario. Is it true that when shared pointers are copied, the objects they control are likewise copied along with them? Explain
Write a program in C++ that reads data from a file. Create dynamic memory according to the data. Now your task is to perform the following task. Row wise Sum Column wise Sum Diagonal wise Sum Example data.txt 4 5 1.6 10.2 33.7 99 20.5 3 44 50 96.1 2 8 9 4 74 50 99 19.1 Output: Sum row wise: 165, 191, 17, 242.1 Sum col wise: 127.6, 120.1, 228.8, 118.1, 20.5 Sum diagonal wise: Not Possible Note: You are restricted to use pointers and your function should be generic as we discussed in class. Avoid memory wastage, memory leakage, dangling pointer. Use regrow or shrink concepts if required.
Write a C program that uses the following: a main() to read two integer values from the user, val1 and val2, and prints the returned value from swap().a swap() that uses call by reference (takes the addresses into pointers) to swap values, and prints their values after the swap "num1 = # and num2 = #". This function returns the largest of the two values. If these are equal, it returns their sum.
In C++, how simple is it to duplicate an array of shared pointers into a new array? Create a list of potential solutions to the issue at hand. Do the objects controlled by a shared pointer also get copied when it's copied? Explain
Someone tries to fix the stack based buffer overflow problem as follows, is it secure now? why? Are there any other issues within the function's implementation below? Explain your reasoning. int bof(char *str, int size) { char *buffer = (char *) malloc(size); strcpy(buffer, str); return 1; }
Write a short C program that declares and initializes (to any value you like) adouble, an int, and a char. Next declare and initialize a pointer to each of thethree variables. Your program should then print the address of, and value storedin, and the memory size (in bytes) of each of the six variables.Use the “%p” formatting specifier to print addresses in hexadecimal. You shouldsee addresses that look something like this: "0xbfe55918". The initial characters"0x" tell you that hexadecimal notation is being used; the remainder of the digitsgive the address itself. Use proper formatting specifiers for char, int and double.Use the sizeof operator to determine the memory size allocated for each variable.Sample output from your program:The address of char ___ is 0x_______The address of int ___ is 0x_______The address of double ___ is 0x_______The address of char* ___ is 0x_______The address of int* ___ is 0x_______The address of double* ___ is 0x_______The value of char ___ is _______The…
Write a C program that reads a matrix of n × m numbers, transpose the matrix, then print it out using pointers. (Do not use array subscript syntax such as a[0], a[i])
Write a program to find the number of times that a given word occurs in a sentence using pointers. Read data from standard input. The first line is a single word, which is followed by general text on the second line. Read both up to a new line character, and insert a terminating null before processing. Typically output should be : The word is “ the ”. The sentence is “ the cat on the mat “ . The word occurs 2 times.
Someone tries to fix the stack based buffer overflow problem as follows, is it secure now? why? Are there any other issues within the function's implementation below? int bof(char *str, int size) { char *buffer = (char *) malloc(size); strcpy(buffer, str); return 1; }
Write a short C program that declares and initializes (to any value you like) adouble, an int, and a char. Next declare and initialize a pointer to each ofthe three variables. Your program should then print the address of, and valuestored in, and the memory size (in bytes) of each of the six variables.Use the “0x%x” formatting specifier to print addresses in hexadecimal. Youshould see addresses that look something like this: "0xbfe55918". The initialcharacters "0x" tell you that hexadecimal notation is being used; the remainderof the digits give the address itself.Use the sizeof operator to determine the memory size allocated for eachvariable.*/
Write a C program that does a large number of references to elements of two-dimensioned arrays, using only subscripting. Write a second program that does the same operations but uses pointers and pointer arithmetic for the storage-mapping function to do the array references. Compare the time efficiency of the two programs. Which of the two programs is likely to be more reliable? Why?
Write a script that will display the element of a single dimensional array of numbers in reverseby using pointers.a) The user should be prompted to make a decision on the size of the array.b) The user should also be prompted to type in the individual element of thearray in order.c) Use Pointers! C LANGUAGE PLEASE