using namespace std; declaration syntax error

[junaidsherief]

I am using Turbo C++ version 3.0, see the following code,
when compiled, causes declaration syntax error


#include<iostream.h>
#include<conio.h>
#include<fstream.h>
using namespace std;
int main()
{
//using namespace std;
ofstream f;
clrscr();
f.open ("ittuz.txt");
cout<<"Created";
f<<"This is a file generated by c++ pgm \n ";
f<<"by /n /t Ajmal thagha Muhammed";
cout<<"Wrted to file";
f.close();
cout<<"closed";
getch();
return 0;
}

[Paul McKenzie]

I am using Turbo C++ version 3.0, see the following code,

The reason for your error is that you are using an old, outdated, obsolete compiler. It is totally useless if you want to learn C++ as it stands today in the year 2010.

C++ was standardized in 1998. That compiler goes back to 1992! You can't get anywhere using that dinosaur.

There are many free, modern ANSI C++ compilers available. Visual Studio Express, gcc/mingw, etc. Please get one of these compilers, and then start over.

As to your code, the correct headers are <iostream> and <fstream>, not <iostream.h> and <fstream.h>.

Regards,

Paul McKenzie

[tyranthacker]

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

are technically correct but are old code from C, use it without the .h

[monarch_dodra]

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

are technically correct but are old code from C, use it without the .h

Except for conio, those are neither "technically correct", nor from C.

[Zaccheus]

When were namespaces introduced to C++ anyway?

[Paul McKenzie]

When were namespaces introduced to C++ anyway?

I believe they were in the original ARM (Annotated Reference Manual) before standardization in 1998, but no compiler was forced to implement them until 1998.

Regards,

Paul McKenzie

[junaidsherief]

Thanks to all, solved