Difference between revisions of "ListCompare"
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integer aL = a != []; | integer aL = a != []; | ||
if (aL != (b != [])) return 0; | if (aL != (b != [])) return 0; | ||
if (aL == 0) | if ((aL == 0) && (b == [])) return 1; | ||
return !llListFindList((a = []) + a, (b = []) + b); | return !llListFindList((a = []) + a, (b = []) + b); | ||
}</lsl> | }</lsl> | ||
Revision as of 06:55, 13 August 2012
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Summary
Function: integer ListCompare( list a, list b );
Efficiently compares two lists for equality (same contents).
Returns an integer TRUE if the lists are equal, FALSE if not.
| • list | a | – | The first list to compare. | |
| • list | b | – | The second list to compare. |
Examples
<lsl>integer r = ListCompare([1, 2.0, "3"], [1, 2.0, "3"]); // Returns TRUE integer s = ListCompare([1, 2.0, 3], [1, 2.0, "3"]); // Returns FALSE
integer t = ListCompare([], [1, 2.0, "3"]); // Returns FALSE</lsl>Implementation
<lsl>integer ListCompare(list a, list b) {
integer aL = a != []; if (aL != (b != [])) return 0; if ((aL == 0) && (b == [])) return 1; return !llListFindList((a = []) + a, (b = []) + b);
}</lsl>