Re: finding length of a table

[Erik Hougaard <erik@...>]

Hans van der Meer wrote:
> Trying to find in C program the length of a table with lua_objlen that 
> returned zero, though there are entries in the table (I made them 
> myself).
>
> Both are tables, the former gets length 0, the latter length 3.
> Surely there are entries in the first because the following program 
> shows it:
Quote from manual:
The length of a table |t| is defined to be any integer index |n| such 
that |t[n]| is not *nil* and |t[n+1]| is *nil*; moreover, if |t[1]| is 
*nil*, |n| may be zero. For a regular array, with non-nil values from 1 
to a given |n|, its length is exactly that |n|, the index of its last 
value. If the array has "holes" (that is, *nil* values between other 
non-nil values), then |#t| may be any of the indices that directly 
precedes a *nil* value (that is, it may consider any such *nil* value as 
the end of the array).

/Erik