comparison: sources/mystring.cpp
sources/mystring.cpp
- changeset 105
- b4466472aecd
- parent 88
- 08ccaf26cffd
- child 106
- 7b156b764d11
- child 107
- ca10837a2a9e
equal
deleted
inserted
replaced
| 102:3492f8f0ee7e | 105:b4466472aecd |
|---|---|
| 164 String String::mid (long a, long b) const | 164 String String::mid (long a, long b) const |
| 165 { | 165 { |
| 166 if (b == -1 or b > length()) | 166 if (b == -1 or b > length()) |
| 167 b = length(); | 167 b = length(); |
| 168 | 168 |
| 169 if (b == a) | 169 if (b <= a) |
| 170 return ""; | 170 return ""; |
| 171 | |
| 172 if (b < a) | |
| 173 std::swap (a, b); | |
| 174 | 171 |
| 175 if (a == 0 and b == length()) | 172 if (a == 0 and b == length()) |
| 176 return *this; | 173 return *this; |
| 177 | 174 |
| 178 char* newstr = new char[b - a + 1]; | 175 char* newstr = new char[b - a + 1]; |
| 179 strncpy (newstr, chars() + a, b - a); | 176 strncpy (newstr, chars() + a, b - a); |
| 180 newstr[b - a] = '\0'; | 177 newstr[b - a] = '\0'; |
| 181 String other (newstr); | 178 String other (newstr); |
| 182 delete[] newstr; | 179 delete[] newstr; |
| 183 return other; | 180 return other; |
| 181 } | |
| 182 | |
| 183 // ------------------------------------------------------------------------------------------------- | |
| 184 // | |
| 185 String String::right(int length) const | |
| 186 { | |
| 187 if (length >= this->length()) | |
| 188 return *this; | |
| 189 else | |
| 190 return String(chars() + this->length() - length); | |
| 184 } | 191 } |
| 185 | 192 |
| 186 // ------------------------------------------------------------------------------------------------- | 193 // ------------------------------------------------------------------------------------------------- |
| 187 // | 194 // |
| 188 int String::word_position (int n) const | 195 int String::word_position (int n) const |
