Handling Errors and Exceptions 74120
90:
91: Array::Array(int size):
92: itsSize(size)
93: {
94: if (size == 0)
95: throw xZero(size);
96: if (size > 30000)
97: throw xTooBig(size);
98: if (size < 0)
99: throw xNegative(size);
100: if (size < 10)
101: throw xTooSmall(size);
102:
103: pType = new int[size];
104: for (int i = 0; i < size; i++)
105: pType[i] = 0;
106: }
107:
108: int& Array::operator[] (int offSet)
109: {
110: int size = GetitsSize();
111: if (offSet >= 0 && offSet < GetitsSize())
112: return pType[offSet];
113: throw xBoundary();
114: return pType[0];
115: }
116:
117: const int& Array::operator[] (int offSet) const
118: {
119: int size = GetitsSize();
120: if (offSet >= 0 && offSet < GetitsSize())
121: return pType[offSet];
122: throw xBoundary();
123: return pType[0];
124: }
125:
126: int main()
127: {
128: try
129: {
130: Array intArray(9);
131: for (int j = 0; j < 100; j++)
132: {
133: intArray[j] = j;
134: cout << “intArray[“ << j << “] okay...” << endl;
135: }
136: }
137: catch (Array::xBoundary)LISTING20.8 continued