[Mingw-notify] [ mingw-Bugs-1124898 ] ifstream.read() error

[SourceForge.net <no...@so...>]

Bugs item #1124898, was opened at 2005-02-18 06:13
Message generated for change (Comment added) made by dannysmith
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=1124898&group_id=2435

Category: gcc
Group: Known bugs
Status: Open
Resolution: None
Priority: 5
Submitted By: Dr. Bernhard Friedrichs (bfriedr)
Assigned to: Nobody/Anonymous (nobody)
Summary: ifstream.read() error

Initial Comment:
With gcc 3.3.1 and gcc 3.4.2  (both mingw) I get errors if:


        if (storagebits == 32) {
          for (i = 0; i < this->samples; i++ ) {
              ifs.read(static_cast<char *>
(static_cast<void *>(&idata32)), sizeof( int));

              ddata[i] = (double) (idata32 -
adc_dcoffset) * lsbval * adc_factor;
              cout << i << "  " << idata32 << "  " <<
ddata[i] << "  " << ifs.tellg() << endl;

after reading around 300 binary 32 bit values (casted
from char)  I see that tellg() doe not increment with 4
bytes and the niumvbers I get are almost constant
(ddata[i]).

Ps.: The rouitine works fine since 3 years with linux
(Suse 7.2, 8.2, 9.2)

----------------------------------------------------------------------

>Comment By: Danny Smith (dannysmith)
Date: 2005-02-18 09:01

Message:
Logged In: YES 
user_id=11494

Was ifstream opened in binary mode rather than default text 
mode?  In text mode, CTRLZ (0x1A) means EOF.

If this isn't the problem, please provide a self-contained test 
case so that the problem can be reproduced.

Danny

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=1124898&group_id=2435