What is doubly linked list in c++?





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What is an undefined behavior and sequence points

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Find out the bug in this code,because of that this code will not compile....... #include <iostream> #include <new> #include <cstring> using namespace std; class balance { double cur_bal; char name[80]; public: balance(double n, char *s) { cur_bal = n; strcpy(name, s); } ~balance() { cout << "Destructing "; cout << name << "\n"; } void set(double n, char *s) { cur_bal = n; strcpy(name, s); } void get_bal(double &n, char *s) { n = cur_bal; strcpy(s, name); } }; int main() { balance *p; char s[80]; double n; int i; try { p = new balance [3]; // allocate entire array } catch (bad_alloc xa) { cout << "Allocation Failure\n"; return 1; }

2 Answers   Impetus,


this is to swap to strings....but in output the whole strings are swapped leaving first as it is...why it is so #include<iostream.h> int main() { char a[]="ajeet"; char b[]="singh"; long x=*a; long y=*b; cout<<x<<":"<<y; x=x+y; y=x-y; x=x-y; *a=x; *b=y; cout<<x<<":"<<y; cout<<&a<<endl; cout<<&b<<endl; }

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How do you find out if a linked-list has an end? (I.e. The list is not a cycle)

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Given the following function definition: int doit(int &x, int y, int &z) { x = 3*x; y = y + 5; z = x+y; return z - 4; } int a = 5, b = 7, c = 9, d = 11; d = doit(a,b,c);

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write a c++ program that gives output 4 3 4 2 3 4 1 2 3 4 using looping statement

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What is the fastest c++ compiler?

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What is the difference between reference and pointer?

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Shall we use 'free' to free memory assigned by new, What are the further consequences??

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What does the following do: for(;;) ; a) Illegal b) Loops forever c) Ignored by compiler...not illegal

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There are 100 students in a class. The management keep information in two tables. Those two tables are given like Roll no Name Age 001 ABC 15 002 XYZ 14 and Roll No Subject Marks 001 Math 75 001 Physics 55 002 Math 68 001 Hindi 69 They want the information like this Roll No Name Hindi Physics Math Total 001 ABC 69 55 75 199 002 XYZ 68 74 84 226 And Roll No Suject Highest 001 Math 98 007 Physics 84 021 Hindi 74 All 275 All information is kept in structure in main memory. You have to find last two tables.

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