SiroDiaz /
DataStructures
| @@ 271-297 (lines=27) @@ | ||
| 268 | * @throws OutOfBoundsException if index is negative |
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| 269 | * or is greater than the size of the list. |
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| 270 | */ |
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| 271 | public function delete($index) { |
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| 272 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 273 | throw new OutOfBoundsException(); |
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| 274 | } |
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| 275 | ||
| 276 | // if the list is empty |
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| 277 | if($this->head === null) { |
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| 278 | return null; |
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| 279 | } |
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| 280 | ||
| 281 | // if only there is an element |
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| 282 | if($this->head->next === $this->head) { |
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| 283 | $temp = $this->head; |
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| 284 | $this->head = null; |
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| 285 | $this->size--; |
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| 286 | ||
| 287 | return $temp->data; |
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| 288 | } |
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| 289 | ||
| 290 | if($index === 0) { |
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| 291 | return $this->deleteBeginning(); |
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| 292 | } else if($index === $this->size - 1) { |
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| 293 | return $this->deleteEnd(); |
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| 294 | } else { |
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| 295 | return $this->deleteAt($index); |
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| 296 | } |
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| 297 | } |
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| 298 | ||
| 299 | /** |
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| 300 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 287-313 (lines=27) @@ | ||
| 284 | * @throws OutOfBoundsException if index is negative |
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| 285 | * or is greater than the size of the list. |
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| 286 | */ |
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| 287 | public function delete($index) { |
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| 288 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 289 | throw new OutOfBoundsException(); |
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| 290 | } |
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| 291 | ||
| 292 | // if the list is empty |
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| 293 | if($this->head === null) { |
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| 294 | return null; |
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| 295 | } |
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| 296 | ||
| 297 | // if only there is an element |
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| 298 | if($this->head->next === $this->head) { |
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| 299 | $temp = $this->head; |
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| 300 | $this->head = null; |
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| 301 | $this->size--; |
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| 302 | ||
| 303 | return $temp->data; |
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| 304 | } |
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| 305 | ||
| 306 | if($index === 0) { |
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| 307 | return $this->deleteBeginning(); |
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| 308 | } else if($index === $this->size - 1) { |
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| 309 | return $this->deleteEnd(); |
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| 310 | } else { |
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| 311 | return $this->deleteAt($index); |
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| 312 | } |
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| 313 | } |
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| 314 | ||
| 315 | /** |
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| 316 | * Deletes at the beginnig of the list and returns the data stored. |
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