OsListSortInPlace

From OpenSimulator

(Difference between revisions)
Jump to: navigation, search
Line 7: Line 7:
 
* src: the list to sort
 
* src: the list to sort
 
* stride: the list stride.
 
* stride: the list stride.
−
* ascending: it it is 1, sort in ascending order. If it is any other value, sort in descendent order.<br>
+
* ascending: it it is 1 or TRUE, sort in ascending order. If it is any other value, sort in descendent order.<br>
 
- Does nothing if the list length is not a multiple of stride.<br>
 
- Does nothing if the list length is not a multiple of stride.<br>
 
- The sort considers the elements that are at indexes that are multiple of stride. The other elements between those multiples are just copied around.<br>
 
- The sort considers the elements that are at indexes that are multiple of stride. The other elements between those multiples are just copied around.<br>
Line 24: Line 24:
 
         list src = [1,"D",-4,"A","B"];
 
         list src = [1,"D",-4,"A","B"];
 
         llSay(0, "original list: " + llDumpList2String(src,","));
 
         llSay(0, "original list: " + llDumpList2String(src,","));
−
         osListSortInPlace(src, 1, 1);
+
         osListSortInPlace(src, 1, TRUE);
 
         llSay(0, "sorted in ascending order with stride 1: " + llDumpList2String(src,","));
 
         llSay(0, "sorted in ascending order with stride 1: " + llDumpList2String(src,","));
 
     }
 
     }

Revision as of 17:09, 1 June 2021

Languages Languages: 

En.png English

osListSortInPlace(list src, integer stride, integer ascending)
Identical to llListSort but does the sort on the original list, so using less memory.
  • src: the list to sort
  • stride: the list stride.
  • ascending: it it is 1 or TRUE, sort in ascending order. If it is any other value, sort in descendent order.

- Does nothing if the list length is not a multiple of stride.
- The sort considers the elements that are at indexes that are multiple of stride. The other elements between those multiples are just copied around.
i.e. if the element at [n * stride] is moved to [m * stride], elements [n * stride + i] are moved to [m * stride + i] for i = 1 to stride -1 (n m and i integers).
- if there are different object types (ie some are integer, others string, etc) at the consider indexes [n * stride], each type is considered as a sub list and each list is sorted.
[1,"D",-4,"A","B"] will be [-4,"A",1,"B","D"], in ascending sort and stride 1.
- Lists with stride 1 and elements all of some tipe are a lot faster to sort than others, because in that case faster algorithms can be used.

Threat Level This function does not do a threat level check
Permissions Use of this function is always allowed by default
Extra Delay 0 seconds
Example(s) 
//
default
{
    state_entry()
    {
        llSay(0, "osListSortInPlace example");
        list src = [1,"D",-4,"A","B"];
        llSay(0, "original list: " + llDumpList2String(src,","));
        osListSortInPlace(src, 1, TRUE);
        llSay(0, "sorted in ascending order with stride 1: " + llDumpList2String(src,","));
    }
}
Notes
This function was added in 0.9.2


Retrieved from "http://opensimulator.org/index.php?title=OsListSortInPlace&oldid=50824"
Personal tools
General
About This Wiki