SiroDiaz /
DataStructures
| @@ 257-283 (lines=27) @@ | ||
| 254 | * @throws OutOfBoundsException if index is negative |
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| 255 | * or is greater than the size of the list. |
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| 256 | */ |
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| 257 | public function delete($index) { |
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| 258 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 259 | throw new OutOfBoundsException(); |
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| 260 | } |
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| 261 | ||
| 262 | // if the list is empty |
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| 263 | if($this->head === null) { |
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| 264 | return null; |
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| 265 | } |
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| 266 | ||
| 267 | // if only there is an element |
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| 268 | if($this->head->next === $this->head) { |
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| 269 | $temp = $this->head; |
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| 270 | $this->head = null; |
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| 271 | $this->size--; |
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| 272 | ||
| 273 | return $temp->data; |
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| 274 | } |
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| 275 | ||
| 276 | if($index === 0) { |
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| 277 | return $this->deleteBeginning(); |
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| 278 | } else if($index === $this->size - 1) { |
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| 279 | return $this->deleteEnd(); |
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| 280 | } else { |
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| 281 | return $this->deleteAt($index); |
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| 282 | } |
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| 283 | } |
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| 284 | ||
| 285 | /** |
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| 286 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 281-307 (lines=27) @@ | ||
| 278 | * @throws OutOfBoundsException if index is negative |
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| 279 | * or is greater than the size of the list. |
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| 280 | */ |
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| 281 | public function delete($index) { |
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| 282 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 283 | throw new OutOfBoundsException(); |
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| 284 | } |
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| 285 | ||
| 286 | // if the list is empty |
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| 287 | if($this->head === null) { |
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| 288 | return null; |
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| 289 | } |
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| 290 | ||
| 291 | // if only there is an element |
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| 292 | if($this->head->next === $this->head) { |
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| 293 | $temp = $this->head; |
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| 294 | $this->head = null; |
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| 295 | $this->size--; |
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| 296 | ||
| 297 | return $temp->data; |
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| 298 | } |
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| 299 | ||
| 300 | if($index === 0) { |
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| 301 | return $this->deleteBeginning(); |
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| 302 | } else if($index === $this->size - 1) { |
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| 303 | return $this->deleteEnd(); |
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| 304 | } else { |
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| 305 | return $this->deleteAt($index); |
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| 306 | } |
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| 307 | } |
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| 308 | ||
| 309 | /** |
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| 310 | * Deletes at the beginnig of the list and returns the data stored. |
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