Output of following program? Assume that the size of int is 4 bytes and size of double is 8 bytes, and there is no alignment done by the compiler.
#include<iostream> #include<stdlib.h> using namespace std;
template<class T, class U, class V=double>
class A {
T x;
U y;
V z;
static int count;
}; int main()
{ A<int, int> a;
A<double, double> b;
cout << sizeof(a) << endl;
cout << sizeof(b) << endl;
return 0;
} |
(A)
16 24
(B)
8 16
(C)
20 28
(D) Compiler Error: template parameters cannot have default values.
Answer: (A)
Explanation: templates can also have default parameters. The rule is same all default values must be on the rightmost side.
Since count is static, it is not counted in sizeof.
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