SiroDiaz /
DataStructures
| @@ 303-329 (lines=27) @@ | ||
| 300 | * @throws OutOfBoundsException if index is negative |
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| 301 | * or is greater than the size of the list. |
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| 302 | */ |
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| 303 | public function delete($index) { |
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| 304 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 305 | throw new OutOfBoundsException(); |
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| 306 | } |
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| 307 | ||
| 308 | // if the list is empty |
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| 309 | if($this->head === null) { |
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| 310 | return null; |
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| 311 | } |
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| 312 | ||
| 313 | // if only there is an element |
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| 314 | if($this->head->next === $this->head) { |
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| 315 | $temp = $this->head; |
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| 316 | $this->head = null; |
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| 317 | $this->size--; |
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| 318 | ||
| 319 | return $temp->data; |
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| 320 | } |
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| 321 | ||
| 322 | if($index === 0) { |
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| 323 | return $this->deleteBeginning(); |
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| 324 | } else if($index === $this->size - 1) { |
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| 325 | return $this->deleteEnd(); |
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| 326 | } else { |
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| 327 | return $this->deleteAt($index); |
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| 328 | } |
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| 329 | } |
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| 330 | ||
| 331 | /** |
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| 332 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 326-352 (lines=27) @@ | ||
| 323 | * @throws OutOfBoundsException if index is negative |
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| 324 | * or is greater than the size of the list. |
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| 325 | */ |
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| 326 | public function delete($index) { |
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| 327 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 328 | throw new OutOfBoundsException(); |
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| 329 | } |
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| 330 | ||
| 331 | // if the list is empty |
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| 332 | if($this->head === null) { |
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| 333 | return null; |
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| 334 | } |
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| 335 | ||
| 336 | // if only there is an element |
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| 337 | if($this->head->next === $this->head) { |
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| 338 | $temp = $this->head; |
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| 339 | $this->head = null; |
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| 340 | $this->size--; |
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| 341 | ||
| 342 | return $temp->data; |
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| 343 | } |
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| 344 | ||
| 345 | if($index === 0) { |
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| 346 | return $this->deleteBeginning(); |
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| 347 | } else if($index === $this->size - 1) { |
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| 348 | return $this->deleteEnd(); |
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| 349 | } else { |
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| 350 | return $this->deleteAt($index); |
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| 351 | } |
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| 352 | } |
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| 353 | ||
| 354 | /** |
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| 355 | * Deletes at the beginnig of the list and returns the data stored. |
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