Compiler Warning (level 4) C4510
'class' : default constructor could not be generated
The compiler cannot generate a default constructor for the specified class and no user-defined constructor was created. You will not be able to create objects of this type.
There are several situations that prevent the compiler from generating a default constructor, including:
A const data member.
A data member that is a reference.
You need to create a user-defined default constructor for the class that initializes these members.
The following sample generates C4510:
// C4510.cpp
// compile with: /W4
struct A {
const int i;
int &j;
A& operator=( const A& ); // C4510 expected
// uncomment the following line to resolve this C4510
// A(int ii, int &jj) : i(ii), j(jj) {}
}; // C4510
int main() {
}