From: anthony AT prairienet DOT org (Anthony)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Trouble Compiling C++ with DJGPP
Date: 17 May 2003 02:58:15 -0700
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Martin Ambuhl <mambuhl AT earthlink DOT net> wrote in message news:<3EC5615B DOT 6000704 AT earthlink DOT net>...
> Anthony wrote:
> 
> > --Snippet--
> > #include <iostream>
> > 
> > int main()
> > {
> >     cout << "Hello world.\n";
> >     return(0);
> > }
> > -----------
> > 
> > --Error--
> > hello.cc: In function 'int main()':
> > hello.cc:5: 'cout' undeclared (first use this function)
> > hello.cc:5: (each identifier reported only once)
> > ---------
> 
> [Description of much wasted effort]
> 
> cout is part of the std namespace in C++.  You must say so, in any 
> implementation of the real language C++, including g++.  One way of 
> doing so is:
> 
> #include <iostream>
> 
> int main()
> {
>      std::cout << "Hello world.\n";
>      return 0;
> }

Thanks. This works perfectly with g++. I still wonder why I was able to
compile the snippet in the past without the std:: though. It is an exact
quote out of a recent book on C++.