SiroDiaz /
DataStructures
| @@ 324-350 (lines=27) @@ | ||
| 321 | * @throws OutOfBoundsException if index is negative |
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| 322 | * or is greater than the size of the list. |
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| 323 | */ |
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| 324 | public function delete($index) { |
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| 325 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 326 | throw new OutOfBoundsException(); |
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| 327 | } |
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| 328 | ||
| 329 | // if the list is empty |
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| 330 | if($this->head === null) { |
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| 331 | return null; |
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| 332 | } |
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| 333 | ||
| 334 | // if only there is an element |
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| 335 | if($this->head->next === $this->head) { |
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| 336 | $temp = $this->head; |
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| 337 | $this->head = null; |
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| 338 | $this->size--; |
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| 339 | ||
| 340 | return $temp->data; |
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| 341 | } |
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| 342 | ||
| 343 | if($index === 0) { |
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| 344 | return $this->deleteBeginning(); |
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| 345 | } else if($index === $this->size - 1) { |
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| 346 | return $this->deleteEnd(); |
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| 347 | } else { |
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| 348 | return $this->deleteAt($index); |
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| 349 | } |
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| 350 | } |
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| 351 | ||
| 352 | /** |
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| 353 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 362-388 (lines=27) @@ | ||
| 359 | * @throws OutOfBoundsException if index is negative |
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| 360 | * or is greater than the size of the list. |
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| 361 | */ |
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| 362 | public function delete($index) { |
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| 363 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 364 | throw new OutOfBoundsException(); |
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| 365 | } |
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| 366 | ||
| 367 | // if the list is empty |
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| 368 | if($this->head === null) { |
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| 369 | return null; |
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| 370 | } |
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| 371 | ||
| 372 | // if only there is an element |
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| 373 | if($this->head->next === $this->head) { |
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| 374 | $temp = $this->head; |
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| 375 | $this->head = null; |
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| 376 | $this->size--; |
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| 377 | ||
| 378 | return $temp->data; |
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| 379 | } |
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| 380 | ||
| 381 | if($index === 0) { |
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| 382 | return $this->deleteBeginning(); |
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| 383 | } else if($index === $this->size - 1) { |
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| 384 | return $this->deleteEnd(); |
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| 385 | } else { |
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| 386 | return $this->deleteAt($index); |
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| 387 | } |
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| 388 | } |
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| 389 | ||
| 390 | /** |
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| 391 | * Deletes at the beginnig of the list and returns the data stored. |
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