Compiler Error C2073

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The latest version of this topic can be found at Compiler Error C2073.

identifier' : elements of partially initialized array must have a default constructor

Too few initializers were specified for an array of user-defined types or constants. If an explicit initializer and its corresponding constructor are not specified for an array member, a default constructor must be supplied.

The following sample generates C2073:

// C2073.cpp  
class A {  
public:  
   A( int );   // constructor for ints only  
};  
A a[3] = { A(1), A(2) };   // C2073, no default constructor  

// C2073b.cpp  
// compile with: /c  
class B {  
public:  
   B();   // default constructor declared  
   B( int );  
};  
B b[3] = { B(1), B(2) };   // OK