6.Consider the following C function:char *copy(char * s) {/* Returns a string containing the first 10 characters of the argument. */char ret [10];for (int i = 0; i < 10%; i++) {}}ret [i] = s[i];return ret;(a) [5] Identify the two issues related to pointers and memory management that may causeproblems when this function is used in a program.(b) [5] Explain how to fix the issue related to memory management.

(a) Two issues related to pointers and memory management:Returning a pointer to a local array:In C,…

Answered: 6. Consider the following C function:…

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 1TF

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These operations are using C syntax and Pointers
1. Given the codes below. Draw a memory layout of pointers and variable(i-ii). What is the output (iii)? int x = 11; int y = 20; int* ptr; i) ii) iii) ptr=&y; *ptr=*ptr + x; cout << x<<" "<
Review these A reference is another name given to a variable in memory of the same data type A pointer is a variable that contains the address of another variable of the same type. Q1) The fun takes a reference and return a value int fun (int &x) { x=9; return x; } int main() { int x=4; int &z=x; int k=fun (z); cout<
Define what the following do in C in relation to pointers: *, &, [], +, Note that there are 2 functions for *. Write code that uses all 5.
QUESTION 2 Specify all that is true regarding the asterisk symbol for C++. The symbol is used for getting the memory address of a variable. The symbol is used for multiplication. O The symbol is use for dereferencing a pointer. O The * symbol is used for decalring a pointer.
c programming language The program below uses pointer arithmetic to determine the size of a 'char'variable. By using pointer arithmetic we can find out the value of 'cp' and thevalue of 'cp+1'. Since cp is a pointer, this addition involves pointer arithmetic:adding one to a pointer makes the pointer point to the next element of the sametype.For a pointer to a char, adding 1 really just means adding 1 to the address, butthis is only because each char is 1 byte.1. Compile and run the program and see what it does.2. Write some code that does pointer arithmetic with a pointer to an int anddetermine how big an int is.3. Same idea – figure out how big a double is, by using pointer arithmetic andprinting out the value of the pointer before and after adding 1.4. What should happen if you added 2 to the pointers from exercises 1through 3, instead of 1? Use your program to verify your answer.#include <stdio.h>int main( ){ char c = 'Z'; char *cp = &c; printf("cp is %p\n", cp);…
Part II: Understand Pointers/Dynamic Memory To-do 2: Write 3 different functions in C++ to create memory on the heap without causing a memory leak. Hint: You will need to assign the address to a pointer that was created outside the function. Remember, you can return an address or change what a pointer points to (the contents of a pointer) in a function by passing the pointer by reference or by passing the address of the pointer. Additional questions: What if you want to change the contents of what the pointer points to? Make a function that will set the contents of the space on the heap. Do you still need to pass by reference or the address of the pointer? Why or why not? How will you delete the memory off the heap? Try doing it outside a function, and inside a function. Make sure your delete function is setting your pointer back to NULL, since it is not supposed to be pointing anywhere anymore. You can check to see if you have any memory leaks using valgrind. Svalgrind program_exe…
1: This program demonstrates the use of pointers. What is the output of this program? Assume we know that the initial address of x is 0012FF44. #include <iostream> using namespace std; int main() { int x=25; int *ptr; // pointer ptr=&x; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; //Now we assign 100 to x *ptr=100; cout<<endl; cout<<"Now we assign 100 to x:"<<endl; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; return 0; } Write down the output:
a) Based on the codes given in Program-4, illustrate the memory address of the pointers and current values for variables a, b and c: #include 2 using namespace std; NITT P P P 8789SCWN HOODWNH 3 10 11 12 13 14 5 { 15 16 17 18 int main() 19 20 } int a=5, b=10, c=15; int *ptr = &b; cout << "a, b and c values: \n"; cout <
Using C++ Programming language: Given the following definitions: int num1=1, num2=2; int *ptr1=NULL, *ptr2=NULL; Write the following statements: Assign ptr1 to the address of num1. Assign ptr2 to the address of num2. Using pointer notation, write a statement that compares the values that the pointers "point" to to see which is larger. (There is more than one way to do this. You choose.)
Language: C Concatenate two strings using pointers and dynamically allocating the memory for the results. Read two strings from the keyboard using the fgets function. Dynamically allocate the memory for the result using malloc function. Using pointers, copy the first string to the result , except the null terminator ( ’\0’) from the end from the first string. Copy the second string to the result, including the null terminator. Print your results. Free up memory with the free function. Use valgrind to check memory usage.
please solve the problem using c language pointers please indicate the print and the intended output <stdio.h> int main(){} char letters[26]; char *pc1 = letters; /* Equivalent pointer values. */ char *pc2 = &letters; char *pc3 = &letters[0]; letters[4] = "e"; /* Equivalent indexes. */ pc1[4] = â€™eâ€™; *(letters + 4) = "e"; *(pc2 + 4) = "e"; pc3 = &letters[10]; /* Equivalent addresses. */ pc3 = &pc1[10]; pc3 = letters + 10; pc3 = pc2 + 10; }

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