how to retrieve variable arguments in lua 5.2 [duplicate]

Question

The reference pages all say things like

function this(...)
end

However when I try to apply the supposed arg variable all I get is a nil reference. Any attempt I've made to capture the arguments results in a nil table. I've tried forcing a local tab = {...} and still get the nil reference. The closest I've managed to get to capturing the arguments is a select("#",...) which only returns the number of arguments. Whenever I try to capture this outside parameter declaration I get nothing but another error...

I've been thoroughly looking into this with no avail... any way I can accomplish this without forcibly passing a table?

Yu Hao · Accepted Answer · 2016-03-23 08:01:26Z

4

The arg argument is for Lua 5.0 only. Since Lua 5.1, the vararg expression ... is used instead.

Try this:

function foo(...)
    for k, v in ipairs{...} do
        print(k, v)
    end
end

foo('hello', 'world')

answered Mar 23, 2016 at 8:01

Yu Hao

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1 Comment

mysticSilence Over a year ago

strange...it wasn't working in the slightest last night but now it's working just fine...

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