#test
 ## Exceptional values (Inf, NaN, NA)
 A = [3.1 Inf NA; -Inf NaN 128];
 fn  = tempname ();
 fid = fopen (fn, "wt");
 fputs (fid, "3.1\tInf\tNA\n-Inf\tNaN\t128");
 fclose (fid);
 [a,d,h] = importdata (fn, '\t');
 unlink (fn);
 assert (a, A);
 assert (d, "\t");
 assert (h, 0);
