[Octave-bug-tracker] [bug #47741] The scanf family of functions cannot parse 64bit hex numbers on Windows and 32bit Linux

[Markus Mützel]

Follow-up Comment #7, bug #47741 (project octave):

I tried an mxe-build with your patch (and your patch for bug #47759) on
Windows 10 with the following results:

>> sscanf('3000000000', '%d')
ans =  2147483647
>> sscanf('3000000000', '%ld')
ans =  3000000000
>> sscanf('ffffffffffffffff', '%lx')
ans =   1.84467440737096e+019


So that issue seems to be resolved on Windows, too.

With those two patches the examples from comment #4 give

>> sscanf('1000000000', '%d')
ans =   1.0000e+009
>> class(ans)
ans = double
>> sscanf('3000000000', '%d')
ans =   2.1475e+009
>> class(ans)
ans = double
>> sscanf('6000000000', '%d')
ans =   2.1475e+009
>> class(ans)
ans = double
>> sscanf('6000000000', '%ld')
ans =   6.0000e+009
>> class(ans)
ans = double
>> sscanf('ffff', '%x')
ans =  65535
>> class(ans)
ans = double
>> sscanf('ffff', '%lx')
ans =  65535
>> class(ans)
ans = double
>> sscanf('6000000000 6000000000', '%ld %d')
ans =

  6.0000e+009
  2.1475e+009

>> class(ans)
ans = double
>> sscanf('6000000000 ffff', '%ld %lx')
ans =

  6.0000e+009
  6.5535e+004

>> class(ans)
ans = double


So the only remaining difference to Matlab is the class for conversions with
only "%l[oux]" that should be uint64 and for only "%l[di]" that should be
int64.

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?47741>

_______________________________________________
  Nachricht gesendet von/durch Savannah
  http://savannah.gnu.org/