Note: This problem was fixed in Matlab ≥ R2015a.

Matlab R2013 cannot handle uint64 seek offsets. Octave ≥ 3.6 works with uint64 offsets.

offs = uint64(0); %or any number
fid = fopen(tempname);
fser = fseek(fid,offs,'bof');

• fser == -1 for Matlab R2013a/R2013b (error)
• fser == 0 for Octave (correct)