Example works now with fix for bug #47517.

When told to read a certain number of elements matching the format specifier and its input is a file descriptor, textscan is supposed to stop reading the input file at the last character that matched a conversion. Instead, the new textscan reads the entire file up to EOF.

Example:

>> str = "1 2 3 4 5 6";
>> [t, pos] = textscan (str, "%d", 1)
t =
{
  [1,1] = 1
}
pos =  2
>> fid = tmpfile;
>> fprintf (fid, str);
>> frewind (fid);
>> [t, pos] = textscan (fid, "%d", 1);
>> ftell (fid)
ans =  11
>> fclose (fid);
>> t, pos
t =
{
  [1,1] = 1
}
pos = -1

I think in this case the results for both pos and ftell should be 2.

It would be helpful if someone could confirm these in Matlab.