#include <iostream>
using namespace std;
const int DefaultSize = 10;
class Array
{
public:
Array(int itsSize=DefaultSize);
~Array()
{
delete[] pType;
}
//运算符重载
int& operator[](int offset);
const int& operator[](int offset) const;
int GetItsSize() const
{
return itsSize;
}
class ArrayIndexOutOfBoundsException {};
class ElementZero{};
private:
int *pType;
int itsSize;
};
Array::Array(int size) :itsSize(size)
{
if (size==0)
{
throw ElementZero();
}
pType = new int[size];
for (int i=0;i<size;i++)
{
pType[i] = 0;
}
}
int& Array::operator[](int offset)
{
int vcsize =GetItsSize();
if (offset>=0 && offset<vcsize)
{
return pType[offset];
}else{
throw ArrayIndexOutOfBoundsException();
}
}
const int& Array::operator[](int offset) const
{
int vcsize = this->GetItsSize();
if (offset >= 0 && offset<vcsize)
{
return pType[offset];
}
else {
throw ArrayIndexOutOfBoundsException();
}
}
int main()
{
Array a;
Array b(12);
b[2] = 10;
cout << b[2]<< endl;
Array arr1(20);
try
{
for (int k=0;k<100;k++)
{
arr1[k] = k;
}
}
catch (Array::ArrayIndexOutOfBoundsException)
{
cout<<"Array Index Out Of Bounds Exception..."<<endl;
}
system("pause");
return 0;
}
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10
Array Index Out Of Bounds Exception...
请按任意键继续. . .
c++自定义数组越异常 ArrayIndexOutOfBoundsException (学习)
原文：https://www.cnblogs.com/herd/p/10991214.html