Sams Teach Yourself C++ in 21 Days

247: return;

248: }

249: pCurrent = pNext;

250: }

251: }

252:

253: class PartsCatalog : private PartsList

254: {

255: public:

256: void Insert(Part *);

257: int Exists(int PartNumber);

258: Part * Get(int PartNumber);

259: operator+(const PartsCatalog &);

260: void ShowAll() { Iterate(Part::Display); }

261: private:

262: };

263:

264: void PartsCatalog::Insert(Part * newPart)

265: {

266: int partNumber = newPart->GetPartNumber();

267: int offset;

268:

269: if (!Find(offset, partNumber))

270: {

271: PartsList::Insert(newPart);

272: }

273: else

274: {

275: cout << partNumber << “ was the “;

276: switch (offset)

277: {

278: case 0: cout << “first “; break;

279: case 1: cout << “second “; break;

280: case 2: cout << “third “; break;

281: default: cout << offset+1 << “th “;

282: }

283: cout << “entry. Rejected!” << endl;

284: }

285: }

286:

287: int PartsCatalog::Exists(int PartNumber)

288: {

289: int offset;

290: Find(offset,PartNumber);

291: return offset;

292: }

293:

294: Part * PartsCatalog::Get(int PartNumber)

295: {

296: int offset;

568 Day 16

LISTING16.6 Continued