|
|
 |
|
|
|
|
88: // then copies string and size
89: String& String::operator=(const String & rhs)
90: {
91: if (this == &rhs)
92: return *this;
93: delete [] itsString;
94: itsLen=rhs.GetLen();
95: itsString = new char[itsLen+1];
96: int i;
97: for (i = 0; i<itsLen;i++)
98: itsString[i] = rhs[i];
99: itsString[itsLen] = \0;
100: return *this;
101: // cout << \tString operator=\n;
102: }
103:
104: //non constant offset operator, returns
105: // reference to character so it can be
106: // changed!
107: char & String::operator[] (int offset)
108: {
109: if (offset > itsLen)
110: return itsString[itsLen-1];
111: else
112: return itsString[offset];
113: }
114:
115: // constant offset operator for use
116: // on const objects (see copy constructor!)
117: char String::operator[](int offset) const
118: {
119: if (offset > itsLen)
120: return itsString[itsLen-1];
121: else
122: return itsString[offset];
123: }
124:
125: // creates a new string by adding current
126: // string to rhs
127: String String::operator+(const String& rhs)
128: {
129: int totalLen = itsLen + rhs.GetLen();
130: int i, j;
131: String temp(totalLen);
132: for (i = 0; i<itsLen; i++)
133: temp[i] = itsString[i];
134: for (j = 0; j<rhs.GetLen(); j++, i++)
135: temp[i] = rhs[j];
136: temp[totalLen]=\0; |
|
|
|
|
|
|
|
|
continues |
|
|
|
|
|