i have a little problem compiling a c++ program:

#include <fstream>
#include <iostream>
using namespace std;

int main() {
char datei[128];
ifstream test;
cout <<"Dateiname: "<<flush;
cin.getline(datei,127,'*');
test.open(datei, ios_base::in);
if (test.good())
cout<<"Datei existiert!" << endl;
else
cout <<"Datei ist nicht da!"<<endl;
return 0;
}

The error-message it gives me is:
'ios_base' undeclared
The strange thing is that i ran the program successfully on my old box. i took the code from a book. are there any libraries missing? any explanations or advices?
thanks a lot!
jens

Try this version: note that i just removed the std namespace stuff, and added the .h to the headers, it should compile fine

Hano


#include <fstream.h>
#include <iostream.h>

int main() {
char datei[128];
ifstream test;
cout <<"Dateiname: "<<flush;
cin.getline(datei,127,'*');
test.open(datei, ios_base::in);
if (test.good())
cout<<"Datei existiert!" << endl;
else
cout <<"Datei ist nicht da!"<<endl;
return 0;
}

thank you, hano
unfortunately - the error remains the same: 'ios_base' undeclared, parse error before::

what compiler are u using?

Hano

g++ version 2.95.3

Ok, i reproduced your error with g++ 2.96.2, it's shouldn't be happening, I compiled it with the intel compiler icc v6.0 and i hadn't errors


Hano

i made a couple tests with other programs and everything compiles fine but: ios_base. Well, i guess i can live with that and get myself another compiler in the next days. do you happen to have a recommendation where to obtain that? muchissimas gracias

search in google:
intel icc compiler
there will show up the link to download it


no hay problema.


Hano

try using ios::in rather than ios_base::in

That might work.

would have been nice but this ios::in trick doesn't work. it compiles well but hangs.
cheers jens