Accept negative inputs to -2^63 for dec2bin and dec2hex (bug #63089) dec2bin.m: Accept negative inputs lower than -flintmax down to -2^63 Return 64-bit string in certain cases for Matlab compatibility Activate BISTs commented out earlier dec2hex.m: Remove repeated code and call dec2bin instead Accept negative inputs lower than -flintmax down to -2^63 Update and activate BISTs commented out earlier

## recursive_nest2.m
function x = recursive_nest2 ()
  x = B (20);
  function v = B (n)
    Y = 0;
    BB (n);
    C;
    v = Y;
    function BB (m)
      if (m > 0)
        Y = Y + 1;
        BB(m - 1);
        C;
      end
    endfunction
  endfunction

  function C
    Y = 0;
  endfunction
endfunction