ListReverse

Summary

User-Defined Function: list uListReverse( list vLstSrc );

Returns a list that is vLstSrc with the elements in reverse order

• vLstSrc: source list to reverse

Smaller Code:

• LSO: 156 Bytes
• MONO: 512 Bytes

list uListReverse( list vLstSrc ){
    integer vIntCnt = (vLstSrc != []);
    while (vIntCnt){
        vLstSrc += llList2List( vLstSrc, (vIntCnt = ~-vIntCnt), vIntCnt );
        vLstSrc = llDeleteSubList( vLstSrc, vIntCnt, vIntCnt );
    }
    return vLstSrc;
}
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/*//     Contributed Freely to the Public Domain without limitation.     //*/
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Faster Code:

• LSO: 160 Bytes
• MONO: 512 Bytes

list uListReverse( list vLstSrc ){
    integer vIntCnt = (vLstSrc != []);
    while (vIntCnt){
        vLstSrc += llList2List( vLstSrc, (vIntCnt = ~-vIntCnt), vIntCnt );
    }
    return llList2List( vLstSrc, (vLstSrc != []) >> 1, -1 );
}
/*//--                       Anti-License Text                         --//*/
/*//     Contributed Freely to the Public Domain without limitation.     //*/
/*//   2009 (CC0) [ http://creativecommons.org/publicdomain/zero/1.0 ]   //*/
/*//  Void Singer [ https://wiki.secondlife.com/wiki/User:Void_Singer ]  //*/
/*//--                                                                 --//*/

Caveats

• The "Faster" version doubles the list size internally, and is more likely to cause a stack/heap collision(script crash) with large lists and/or limited free memory

Notes

• This function is a companion to llListSort.