Question

I have a class, and in this class I’d like to have an array of another class, declares, any suggestions on how to do this?

But when I do the following, I get an error.

 #include "classB.h"     

 Class classA
 {
 public:
 classA();


 int intArray[20];
 classB arrayOfClassB[20];
 };

I get:

error C2512: ‘classB’ : no appropriate default constructor available.

My classB constructor takes a string.

Answer 1

When you define an array in this way classB arrayOfClassB[20];, each element of arrayOfClassB will be constructed using the default constructor of classB. Since you have defined a constructor in classB which takes a string as a parameter, the compiler will NOT generate a default constructor of classB for you. In this case, you have to define a default constructor classB() in classB, then the error is gone. However, as others said, using vector is a better choice.