c++ question regarding tellg()

Subject: c++ question regarding tellg()
From: John Schmidt (jas@netbrick.com)
Date: Wed Jan 09 2002 - 17:39:50 MST

Hi,

I am wondering why the tellg() is only declared in iostream.h in the following
rpms:

gcc-2.95.4-4h
gcc-c++-2.95.4-4h
gcc-g77-2.95.4-4h

Using gcc on an SGI, things appear to work but not on my ydl 2.1 version with
the latest g++ compiler.

Here is the sample code stream_test.cc

#include <iostream>
#include <sstream>
#include <string>

using namespace std;

int main()
{
        string name("John");
        istringstream instream(name);
        instream.seekg(1);
        cout << "tellg() " << instream.tellg() << endl;
        cout << "string buf = " << instream.rdbuf()->str() << endl;
        cout << "length of buf = " << instream.rdbuf()->str().size() << endl;
        cout << name << endl;
        return 0;
}

compiling with: c++ -o stream_test stream_test.cc

and running: ./stream_test results in the following:

[jas@retriever jas]$ ./stream_test
tellg() 268526225
string buf =
length of buf = 0
John

This is clearly not right. Am I missing some development rpms or is the g++
compiler for ppc not complete in this regard.

Thanks,

John Schmidt
jas@netbrick.com

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