SiroDiaz /
DataStructures
| @@ 252-278 (lines=27) @@ | ||
| 249 | * @throws OutOfBoundsException if index is negative |
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| 250 | * or is greater than the size of the list. |
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| 251 | */ |
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| 252 | public function delete($index) { |
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| 253 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 254 | throw new OutOfBoundsException(); |
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| 255 | } |
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| 256 | ||
| 257 | // if the list is empty |
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| 258 | if($this->head === null) { |
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| 259 | return null; |
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| 260 | } |
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| 261 | ||
| 262 | // if only there is an element |
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| 263 | if($this->head->next === $this->head) { |
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| 264 | $temp = $this->head; |
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| 265 | $this->head = null; |
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| 266 | $this->size--; |
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| 267 | ||
| 268 | return $temp->data; |
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| 269 | } |
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| 270 | ||
| 271 | if($index === 0) { |
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| 272 | return $this->deleteBeginning(); |
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| 273 | } else if($index === $this->size - 1) { |
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| 274 | return $this->deleteEnd(); |
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| 275 | } else { |
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| 276 | return $this->deleteAt($index); |
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| 277 | } |
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| 278 | } |
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| 279 | ||
| 280 | /** |
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| 281 | * Deletes at the beginnig of the list and returns the data stored. |
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| @@ 282-308 (lines=27) @@ | ||
| 279 | * @throws OutOfBoundsException if index is negative |
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| 280 | * or is greater than the size of the list. |
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| 281 | */ |
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| 282 | public function delete($index) { |
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| 283 | if($index < 0 || ($index > 0 && $index > $this->size - 1)) { |
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| 284 | throw new OutOfBoundsException(); |
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| 285 | } |
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| 286 | ||
| 287 | // if the list is empty |
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| 288 | if($this->head === null) { |
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| 289 | return null; |
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| 290 | } |
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| 291 | ||
| 292 | // if only there is an element |
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| 293 | if($this->head->next === $this->head) { |
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| 294 | $temp = $this->head; |
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| 295 | $this->head = null; |
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| 296 | $this->size--; |
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| 297 | ||
| 298 | return $temp->data; |
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| 299 | } |
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| 300 | ||
| 301 | if($index === 0) { |
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| 302 | return $this->deleteBeginning(); |
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| 303 | } else if($index === $this->size - 1) { |
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| 304 | return $this->deleteEnd(); |
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| 305 | } else { |
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| 306 | return $this->deleteAt($index); |
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| 307 | } |
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| 308 | } |
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| 309 | ||
| 310 | /** |
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| 311 | * Deletes at the beginnig of the list and returns the data stored. |
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