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Mail Archives: djgpp/2002/08/10/08:15:20

From: "Alex Vinokur" <alexvn AT bigfoot DOT com>
Newsgroups: comp.os.msdos.djgpp,comp.lang.c++
Subject: istream_iterator, ostream_iterator and gcc/gpp-3.1
Date: 10 Aug 2002 12:06:13 GMT
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============
Windows 2000
DJGPP 2.03
gcc/gpp 3.1
============


The code below has no problem with gcc/gpp 3.0.4.

However it does have a problem with gcc/gpp 3.1.

What has been changed concerning istream_iterator and ostream_iterator ?

######### C++ code : BEGIN #########
// File t1.cpp

#include <string>
#include <vector>
#include <sstream>
#include <iostream>
#include <fstream>
using namespace std;

// ==============================
int main (int argc, char** argv)
{
string file_line;

  if (!(argc > 1))
  {
    cout << "FATAL ERROR !"
         << endl;

    cout << "   Usage : "
         << argv[0]
         << " "
         << "<Data-File-Name>"
         << endl;
    return 1;
  }
  assert (argc > 1);

  ifstream fin (argv[1]);
  assert (fin);


  cout << endl;
  cout << "\t-----------------------" << endl;
  cout << "\t--- File " << argv[1] << endl;
  cout << "\t-----------------------" << endl;

  for (int i = 1; getline (fin, file_line); i++)
  {
    vector<string> file_vline;
    istringstream isstr (file_line.c_str ());

    copy(
         istream_iterator<string>(isstr),
         istream_iterator<string> (),
         back_inserter (file_vline)
        );

    cout << "\t  Line#" << i << " ---> ";
    copy (
          file_vline.begin (),
          file_vline.end (),
          ostream_iterator<string> (cout, " # ")
         );
    cout << endl;


  } // while

  cout << "\t-----------------------" << endl;

}


######### C++ code : END ###########


######### Compilation : BEGIN #########

%gpp t1.cpp

T1.CPP: In function `int main(int, char**)':
T1.CPP:43: `istream_iterator' undeclared (first use this function)
T1.CPP:43: (Each undeclared identifier is reported only once for each function
   it appears in.)
T1.CPP:43: parse error before `>' token
T1.CPP:52: `ostream_iterator' undeclared (first use this function)
T1.CPP:52: parse error before `>' token


######### Compilation : END ###########


   ==================
   Alex Vinokur
   mailto:alexvn AT go DOT to
   http://up.to/alexvn
   ==================


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