What must be an operand of operator delete?

1.	What must be an operand of operator delete?
A.	Array
B.	Stack
C.	Pointer
D.	All of above
E.	None of these
Answer» D. All of above

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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <new> using namespace std; struct N { virtual ~N() { }; void operator delete(void* ptr1) { cout << "N :: operator delete" << endl; } }; struct M : N { void operator delete(void* ptr1) { cout << "M :: operator delete" << endl; } }; int main() { N* ptr2 = new M; delete ptr2; } </pre>
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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <memory> #include <string> using namespace std; int main () { string str[] = {"Interveiw", "Mania"}; pair <string*, ptrdiff_t> Res = get_temporary_buffer<string>(2); if (Res.second>0) { uninitialized_copy ( str, str + Res.second, Res.first ); for (int k = 0; k < Res.second; k++) cout << Res.first[k] << " "; return_temporary_buffer(Res.first); } return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <memory> #include <algorithm> using namespace std; int main () { int num[] = {11, 15, 14, 15, 14, 11}; pair <int*, ptrdiff_t> Res = get_temporary_buffer<int>(6); if (Res.second > 0) { uninitialized_copy (num, num + Res.second, Res.first); sort (Res.first, Res.first + Res.second); for (int k = 0; k < Res.second; k++) cout << Res.first[k] << " "; return_temporary_buffer (Res.first); } return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <new> #include <cstdlib> using namespace std; const int bsize = 128; int *ptr1; bool allocate = true; void get_memory() { cerr << "free store exhausted" << endl; delete [] ptr1; allocate = false; } void eat_memory(int size) { int *ptr2 = new int[size]; if (allocate) eat_memory(size); else cerr << "free store addr = " << ptr2 << endl; } int main() { set_new_handler(get_memory); ptr1 = new int[bsize]; cerr << "free store addr = " << ptr1 << endl; eat_memory(bsize); return 0; } </pre>
What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <ctype.h> int main () { int k = 0; char str[] = "Ajit Kumar Gupta"; char ch; while (str[k]) { ch = str[k]; if (islower(ch)) ch = toupper(ch); putchar (ch); k++; } return 0; } </pre>
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What must be an operand of operator delete?

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