Class vs Struct for data only?

Question

Is there any advantage over using a class over a struct in cases such as these? (note: it will only hold variables, there will never be functions)

class Foo         


        

Answer 1

One side point is that structs are often used for aggregate initialized data structures, since all non-static data members must be public anyway (C++03, 8.5.1/1).

struct A {  // (valid)
{
   int a;
   int b;
} x = { 1, 2 };

struct A {  // (invalid)
private:
   int a;
   int b;
} x = { 1, 2 };

class A {  // (invalid)
   int a;
   int b;
} x = { 1, 2 };

class A {  // (valid)
public:
   int a;
   int b;
} x = { 1, 2 };

class A {  // (invalid)
public:
   int a;
private:
   int b;
} x = { 1, 2 };