LlGetListLength - Second Life Wiki

LlGetListLength

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Function: integer llGetListLength( list src );

185 Function ID
0.0 Delay
10.0 Energy

Returns an integer that is the number of elements in the list src.

• list src

Examples

 
default
{
    state_entry()
    {
        list l = ["one", "two", "three"];
        integer i = llGetListLength(l);
        llOwnerSay("there are " + (string)i + " entries in the list");
    }
}
 

Notes

A faster and lighter (in bytecode) way to determine the length of a list is to do a not-equals compare with a null list. This works because the list not-equals compare returns the difference between the lengths. 

 
list in;
integer len_in = llGetListLength(in);
integer flen_in = (in != []);
//flen_in and len_in will be the same
 
integer neg_len_in = -llGetListLength(in);
integer fneg_len_in = ([] != in);
//fneg_len_in and neg_len_in will be the same
 

See Also

Functions

•  llListStatistics – LIST_STAT_NUM_COUNT – Returns the number of integers and floats in the list
•  llStringLength – Returns the number of characters in a string.

Source Location

'linden\indra\lscript\lscript_library\lscript_alloc.cpp' @ lsa_cmp_lists
'linden\indra\lscript\lscript_execute\lscript_execute.cpp' @ list_list_operation

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