What is size of null class?
Answers were Sorted based on User's Feedback
Answer / alka
1 byte,whether class won't take any member variable, when
it will loaded into memory object will create which must
take minimum 1 byte of memory.... b'coz minimum size of
memory at least 1 byte
Is This Answer Correct ? | 21 Yes | 3 No |
Answer / divyachinnamaru
Eg :
class A // empty class
{
};
int main()
{
cout<<"size of class is "<<sizeof(A)<<endl;
return 0;
}
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / chethu
can somebody explain what is null class? i cudnt find any
thing abt it in net... pls explain with example
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / purva
the size of null class is zero...
thats why it is called null class because after it nothing
can be accessed in a device..
therefore we have to chech overflow or may be underflow
conditions..
Is This Answer Correct ? | 1 Yes | 19 No |
I want explanation for this assignment: how to connect mysql database using c/c++,please explain this detailly?
Describe linked list using C++ with an example.
Is swift a good first language?
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; }
Why do we use pointers in c++?
What do you mean by ‘void’ return type?
Who discovered c++?
What are keywords in c++?
Should the member functions which are made public in the base class be hidden?
What do you mean by persistent and non persistent objects?
What is insertion sorting?
Is there a datatype string in c++?How is the memory allocation?