Re: libstdc++/6238: ifstream::getline(...) has problems reading file after long line.

Re: libstdc++/6238: ifstream::getline(...) has problems reading file after long line.

[bkoz]

Synopsis: ifstream::getline(...) has problems reading file after long line.

Responsible-Changed-From-To: unassigned->bkoz
Responsible-Changed-By: bkoz
Responsible-Changed-When: Tue Apr  9 11:50:40 2002
Responsible-Changed-Why:
    Mine.
State-Changed-From-To: open->analyzed
State-Changed-By: bkoz
State-Changed-When: Tue Apr  9 11:50:40 2002
State-Changed-Why:
    Thanks for the clear description, well-designed test case. I've reproduced this on linux. More shortly.....
    
    -benjamin

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6238

Re: libstdc++/6238: ifstream::getline(...) has problems reading file after long line.

[bkoz]

Synopsis: ifstream::getline(...) has problems reading file after long line.

State-Changed-From-To: analyzed->closed
State-Changed-By: bkoz
State-Changed-When: Tue Apr  9 12:16:21 2002
State-Changed-Why:
    This isn't a bug. The specification for getline says that failbit will be set if n items are read without hitting the delimiter. That's what is happening here.
    
    If you change
    
      while(!infile.eof() && record_count < 200)
    
    to
    
      while(infile.good())
    
    You'll get the results you expect. 
    
    -benjamin

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6238

libstdc++/6238: ifstream::getline(...) has problems reading file after long line.

[tabrunn]

>Number:         6238
>Category:       libstdc++
>Synopsis:       ifstream::getline(...) has problems reading file after long line.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 09 08:16:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Tom Brunner
>Release:        all stdlib++'s that I've tested
>Organization:
>Environment:
Redhat 7.2, gcc 2.96 20000731 (Red Hat Linux 7.1 2.96-98), gcc 3.0.2 20010905 (Red Hat Linux 7.1 3.0.1-3), gcc version 3.1 20020325 (prerelease)
>Description:
When attempting to read a long line with
ifstream::getline(), the fist part of the line, up to the 
limit specified in the call, is correct.  Subsequent calls
to getline return nothing.  The attached source code exposes
this bug on all gcc versions that I have tried it on on
my Linux box.  On other compilers (on Irix, OSF1, HP-UX,
and AIX), this program runs as expected.
(Returns chunks of the line until the file is finished.)
>How-To-Repeat:
Compile the attached code with g++ (one of the versions
listed above).  Run the executable.  The input file name
can be changed to any file with long lines.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/x-c++src; name="ifstreamtest.C"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="ifstreamtest.C"

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