C++ Syntax Confusion

Given the template class below, please help me understand the
following code behavior?

Array<int32> ia(10); // Array that can contain 10 int32
ia[1] = 1; // Array element 1 set to 1

Here comes the confusion part.

Array<int32> *iarrayPtr = new Array<int32>(10);

1. Does the above mean a point to an array that can contain 10
int32 ?

(*iarrayPtr)[1] = 99;

2. Assign value 99 to array element 1.

iarrayPtr[2] = 100;

3. Stepping through with the debugger, I can see Array(int32 aSize)
called with aSize set to 100. What happened here? How should I read
the above code statement?

Thanks!!!

=== ===
template<class T>
class Array :{
public:
    Array(int32 aSize){dataLen = aSize;data = new T[dataLen];}
    virtual ~Array(){delete [] data;}

    int32 length() const{return(dataLen);}

    const T& operator[](int32 i) const {return(data[i]);}

    T& operator[](int32 i){return(data[i]);}

    T *getData() const {return(data);}

private:
    Array();
private:
    T *data;
    int32 dataLen;
};