Difference between revisions of "ListCompare"
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Omei Qunhua (talk | contribs) (add Mono version) |
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{{LSL_Function | {{LSL_Function | ||
|func=ListCompare | |func=ListCompare | ||
|func_desc=Efficiently compares two lists for equality (same contents). | |func_desc=Efficiently compares two lists for equality (same contents in the same order). | ||
|return_type=integer | |return_type=integer | ||
|return_text=TRUE if the lists are equal, FALSE if not. | |return_text=TRUE if the lists are equal, FALSE if not. | ||
| Line 15: | Line 15: | ||
}} | }} | ||
= Implementation = | = Implementation for LSO = | ||
<lsl>integer ListCompare(list a, list b) { | <lsl>integer ListCompare(list a, list b) { | ||
integer aL = a != []; | integer aL = a != []; | ||
| Line 23: | Line 23: | ||
return !llListFindList((a = []) + a, (b = []) + b); | return !llListFindList((a = []) + a, (b = []) + b); | ||
}</lsl> | }</lsl> | ||
= Implementation for MONO = | |||
<lsl> | |||
integer ListCompare(list a, list b) | |||
{ | |||
if (a != b) return FALSE; // Note: This is comparing list lengths only | |||
return !llListFindList(a, b); | |||
} | |||
</lsl> | |||
Revision as of 14:32, 21 April 2014
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Summary
Function: integer ListCompare( list a, list b );
Efficiently compares two lists for equality (same contents in the same order).
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 for LSO
<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>
Implementation for MONO
<lsl> integer ListCompare(list a, list b) {
if (a != b) return FALSE; // Note: This is comparing list lengths only return !llListFindList(a, b);
} </lsl>