MRehanQadri

Suppose I'm running a loop and the loop should continue unless I get a garbage value. So what will be the terminal condition. How can garbage value be checked in if condition?

If you'd have also written its solution then many (like me) would have got benefit from that.

char* f(){ char* result;//I have to return 'result' at the end of this function, where result should be containing i (i.e. int i=97) in it. int i = 97; //Do whatever you can return result; }

Suppose my file a.txt has "ABC" written in it. Now I want to write a small b before capital B in the file. How will I do it? I've tried to do it but i'm having problems. 1. When opened in app mode seekp doesn't work. 2. When opened normally …

#include <iostream> #include <fstream> using namespace std; class a{ public: void set(int x){num = x;} int get(){return num;} private: int num; }; int main(){ ofstream o_("test.txt"); o_.close(); ofstream os("test.txt", ios::binary | **ios::app**); a o; o.set(1); os.write(reinterpret_cast<char*>(&o), sizeof(a) ); // a o2; // o.set(2); // os.write(reinterpret_cast<char*>(&o), sizeof(a) ); os.close(); a o3,o4; …

Kindly Remove its errors and tell me the reason for the error. Code: https://www.box.com/s/enl4h6loqcnc7jqqgujq

[code]#include <iostream> #include <fstream> #include <conio.h> #include <ctime> using namespace std; //////////////////////////////////////////////////////////////////////////////// class account{ public: account(){ i = 0; balance = 0; transaction_during_one_day = 0; one_month_balance = 0; minimumBalance = 99999999999999; startTime = clock(); } //```````````````````````````````````````````````````````````````````````````````````````````````` void depositBalance(){ cout << "Enter Amount to Deposit: "; cin >> depositAmount; balance += …

is it necessary to include base class in the header and or .cpp file of derived class?

See the highlighted portion (in yellow) the definition of copyConstructor at http://libraryofcprograms.blogspot.com/2013/03/copyconstructor.html Why haven't we used obj.getX() ? void a::copyConstructor(a &obj){ x = obj.x; //should have used obj.getX() because we're accessing a private member of obj? }

http://libraryofcprograms.blogspot.com/2013/03/initializing-character-array-structs.html Is there any other way to initialize a chararcter type array in structs?

Let f1 and f2 are two user defined functions. main(){ int *p; f1(&p) } f1(**p){ f2(&p);//If I've to pass the pointer by reference again in another function, will I've to do something like this? } f2(***p){ **p = NULL; }

If p is a pointer pointing a node to be deleted, then what's wrong in the following code: cout << "Do you want to delete this record? (y/n) "; if (getch() == 'y' || getch() == 'Y'){// Delete record. if (p == *ph){//If first node is to be deleted. *ph …

We cannot use constructors if we want that whenever a pointer is declared, it should be NULL. Am I right Sir? if I declare student *head, *tail, where student is a class, can I make my pointers automatically make NULL using default constructor?

If the prototype of my function is void sell_item(store **head,store **tail). In main i've passed sell_item(&head,&tail), where head & tail where both pointers of store(struct) type. Now I want to access the the content where head is pointing to. How shall I access it? Like *head->next??? But this is not …

Can't find out the error. #include <iostream> using namespace std; struct node{ int id; int *next; }; node * get_data(int ); node * get_data(void); void insert_node (node **, node **, node *); void display_data(node *); int main(){ node *head=0, *tail=0, *newPtr=0; newPtr = get_data(); insert_node (&head,&tail,newPtr); display_data (head); return 0; …

Can you show your code?

#include <iostream> using namespace std; struct td{ int ** subj_no; }; int main(){ td p; **p.subj_no = new int * [7]; } If not then how should I accomplish this task? What's the corrected version?

What I know is that the size of Pointers vary according to the size of Address. Since pointer is normally considered of 4 bytes (whatever its type may be int,double etc.), so size should be 4*4 = 16. You can check it by executing the following code: double *arr[4]; cout …

int x; cin >> x; //If user writes 05 in x. Then I want that 05 should be printed when we cout << x; //If user writes 005 when prompted for x then printing x should print 005, because 005 may be a telephone extension. Is there any way?

Kindly write a simple code to produce a form, where Subject & Message is displayed and when user clicks on submit button, and e-mail is sent to me, with the same subject as the user mentions. My e-mail address should not be displayed. I've been searching web for more than …

My Thinking: struct student { int *subjects_number = new int [NoOfSubjects]; } main() { int NoOfSubjects; cin >> NoOfSubjects; } Objective: students could have taken different number of subjects. Now modify the structure such that its variable subjects_numbers has type pointer to int so that we can store scores for …

Why the condition if ((a[0] == 'y') | (a[0] = 'Y')) is ALWAYS TRUE in the following code? #include <iostream> using namespace std; int main() { cout << "Enter 10 integers seperated by spaces: "; int array[10]; for (int i = 0; i<1; i++) cin>>array[i]; cin.ignore(); cout << "Do you …