==== SORT ====
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----
Sort elements in a list
</callout>

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^  __Input Stack__  ^  ^  __Output Stack__  ^
|  **L**  |  **→**  |  **L<sub>sorted</sub>**  |
|  //Level 1//  |  //→//  |  //Level 1//  |

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| **Keyword type**  | [[manual:chapter5:basics#commands|Command]]  ||
| **Parallel list processing capabilities**  | [[manual:chapter5:listproc#group-2commands-that-must-use-dolist-to-parallel-process|Group 2]]  | //Commands that must use //''[[manual:chapter6:lists:cmd_cmddolist|DOLIST]]''// to parallel process//  |
| **Affected by flags**  | //None//  ||














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<callout color="orangered" icon="fa fa-comment" title="Description">
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The ''SORT'' command uses a variant of the [[https://en.wikipedia.org/wiki/Insertion_sort|Insertion Sort]] (namely, the **Binary Insertion Sort**) to order the elements of a list in ascending order.\\
\\
All the elements in the list must be of the same type; the comparison between elements is done by the ''[[manual:chapter6:operators:cmd_ovr_cmp|CMP]]'' operator: if the ''[[manual:chapter6:flags:cmd_type|TYPE]]'' of the objects within the list is not supported by ''[[manual:chapter6:operators:cmd_ovr_cmp|CMP]]'', no error is issued and the original list is left unmodified.
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''SORT'' is not fully equivalent to its **userRPL** counterpart.

In particular:

  * in **newRPL** strings are not supported (yet).
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<callout type="info" icon="true" title="Usage">
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**__Input__**
<code>
4:                                      
3:                                      
2:                                      
1:                      { 5 1 4 3.1415 }
…………………………………………………………………………………………………………
SORT                                    
</code>
\\
**__Output__**
<code>
4:                                      
3:                                      
2:                                      
1:                      { 1 3.1415 4 5 }
…………………………………………………………………………………………………………
                                        
</code>
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