fN() trips on numbers beyond integer range

[mbojan]

The following test based on http://users.cecs.anu.edu.au/~bdm/data/formats.txt (now turned-off) fails:

for(n in round(seq(258048, 68719476735, length=10))) {
  test_that(
    paste0("fN(n) for n=", n), {
      r <- fN(n)
      expect_length(r, 8)
      expect_true(all(unlist(r) >= 63))
      expect_true(all(unlist(r) <= 126))
    })
}

Apparently goes beyond the integer range. Graphs of size up to 128 do work though.

[schochastics]

I'll have a look at the c++ code. Should be fixable with some "long long" formats. Worst case I have some d2b code that uses string representation

Edit: Ok fixed it in my fork. I'll put it in the next pull request later today