c++ - Why does not see the array in the same class? -

i want write polynomial class,each polynomial consist of multi poly have implemented array, code:

class polynomial {  private:     int count;  public:      polynomial() {         count = 0;         term terms[10];     }      void create(int c) {         terms[count].coef = c;     } };  class term {  public:     double coef;     int expo; }; 

i have problem in create method,it not know terms array , not access term object properties. why happen?

// first declare class referenced class term {  public:     double coef;     int expo; };  class polynomial {  private:     int count;     // terms should class member not local of constructor     term terms[10];  public:      polynomial() {         count = 0;         // if declare terms array here          // destroy after returns constructor          // term terms[10];     }      void create(int c) {         terms[count].coef = c;     } }; 

if polynomial declaration before term declaration requirement forward declaration can used as:

class term;  class polynomial { ... }; class term { // real declaration here }; 

but not revoke wrong terms definition in constructor instead of class member.