SiroDiaz /
DataStructures
| @@ 320-346 (lines=27) @@ | ||
| 317 | * @throws OutOfBoundsException if index is negative |
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| 318 | * or is greater than the size of the list. |
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| 319 | */ |
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| 320 | public function delete($index) { |
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| 321 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 322 | throw new OutOfBoundsException(); |
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| 323 | } |
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| 324 | ||
| 325 | // if the list is empty |
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| 326 | if($this->head === null) { |
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| 327 | return null; |
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| 328 | } |
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| 329 | ||
| 330 | // if only there is an element |
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| 331 | if($this->head->next === $this->head) { |
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| 332 | $temp = $this->head; |
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| 333 | $this->head = null; |
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| 334 | $this->size--; |
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| 335 | ||
| 336 | return $temp->data; |
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| 337 | } |
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| 338 | ||
| 339 | if($index === 0) { |
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| 340 | return $this->deleteBeginning(); |
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| 341 | } else if($index === $this->size - 1) { |
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| 342 | return $this->deleteEnd(); |
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| 343 | } else { |
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| 344 | return $this->deleteAt($index); |
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| 345 | } |
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| 346 | } |
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| 347 | ||
| 348 | /** |
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| 349 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 338-364 (lines=27) @@ | ||
| 335 | * @throws OutOfBoundsException if index is negative |
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| 336 | * or is greater than the size of the list. |
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| 337 | */ |
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| 338 | public function delete($index) { |
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| 339 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 340 | throw new OutOfBoundsException(); |
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| 341 | } |
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| 342 | ||
| 343 | // if the list is empty |
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| 344 | if($this->head === null) { |
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| 345 | return null; |
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| 346 | } |
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| 347 | ||
| 348 | // if only there is an element |
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| 349 | if($this->head->next === $this->head) { |
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| 350 | $temp = $this->head; |
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| 351 | $this->head = null; |
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| 352 | $this->size--; |
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| 353 | ||
| 354 | return $temp->data; |
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| 355 | } |
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| 356 | ||
| 357 | if($index === 0) { |
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| 358 | return $this->deleteBeginning(); |
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| 359 | } else if($index === $this->size - 1) { |
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| 360 | return $this->deleteEnd(); |
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| 361 | } else { |
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| 362 | return $this->deleteAt($index); |
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| 363 | } |
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| 364 | } |
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| 365 | ||
| 366 | /** |
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| 367 | * Deletes at the beginnig of the list and returns the data stored. |
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