listCompare
Revision as of 10:41, 25 May 2010 by Ugleh Ulrik (talk | contribs)
LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
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) return 1; return !llListFindList((a = []) + a, (b = []) + b);
}</lsl>