See if two references in a table are the exact same?

[overki11]

Not sure what the correct term for this is, but I want to see if two values/keys in a table are the exact same.

So let's say we have a table t, with t[1] = 3, and t[2] = 3 as well.

If I compare these two, it will come out as true. Same thing with keys.

Is there a way to compare references instead of values? Thanks.

[c👌de_g🎷]

Can you be more descriptive? If you're talking about pointers, then there's no way for numbers.

[code_thrax]

You could probably do

local t = {3, 3}

if t[1] == t[2] then
	return true
end

and if you want to store true in a variable:

local t = {3, 3}
local ass

if t[1] == t[2] then
	ass = true
end

[overki11]

[QUOTE=code_gs;50346797]Can you be more descriptive? If you're talking about pointers, then there's no way for numbers.[/QUOTE]

Not sure how else I can explain it. I want to see if two members of a table are the exact same.

So I want to do something like t[1] == t[2] and I want it to return false even if the variables held by them are the same. I want to compare the members ([1] and [2] in this case) rather than the variables held by them.

[c👌de_g🎷]

if ( 1 == 2 ) then

?

[Zet0r]

A table can't have two of the same keys. If you mean between two tables, you can just check if a value exists in that key in both tables.
[lua]if t1[key] ~= nil and t2[key] ~= nil then[/lua]
If you want to search two tables and find all keys they both have, you can do a loop through one and check if the other also has a value in that key.
[lua]function FindCommonKeys(t1, t2)
local found = {}
for k,v in pairs(t1) do
if t2[k] ~= nil then table.insert(found, k) end
end
return found
end[/lua]

[man with hat]

[QUOTE=overki11;50346836]Not sure how else I can explain it. I want to see if two members of a table are the exact same.

So I want to do something like t[1] == t[2] and I want it to return false even if the variables held by them are the same. I want to compare the members ([1] and [2] in this case) rather than the variables held by them.[/QUOTE]

Strings, numbers, and booleans are compared by their values, not references. Functions, tables, etc are by reference. No two keys in a table can be equal.