#undef inserted instead of missing for empty line when pool=true

[nalimilan]

The following doesn't happen with pool=false nor with ignoreemptylines=true.

CSV.File(IOBuffer("""x,y
                         a,b
                         a,b
                         a,b
                         a,b
                         a,b
                         a,b
                         a,b
                         a,b
                         a,b
                         
                         """))
thread = 1 warning: only found 1 / 2 columns around data row: 11. Filling remaining columns with `missing`
10-element CSV.File{false}:
Error showing value of type CSV.File{false}:
ERROR: UndefRefError: access to undefined reference

[quinnj]

Hmmm, I don't see the UndefRefError for me locally

[nalimilan]

Weird. I get this both on master and on 0.7.1. What value do you get for the last row in the second column?

[quinnj]

julia> f = CSV.File(IOBuffer("""x,y
                                a,b
                                a,b
                                a,b
                                a,b
                                a,b
                                a,b
                                a,b
                                a,b
                                a,b

                                """))
thread = 1 warning: only found 1 / 2 columns around data row: 11. Filling remaining columns with `missing`
10-element CSV.File{false}:
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = "a", y = "b")
 CSV.Row: (x = missing, y = "b")

which is clearly wrong, but not an UndefRefError

[nalimilan]

Funny. Maybe the value is random (0 vs 1 in the refs field). I think I prefer #undef. :-p

[quinnj]

Ok, if I keep running it over and over, I eventually get the undefref error, so yeah, some kind of randomness there.