From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-help-return-18818-listarch-gcc-help=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 16564 invoked by alias); 7 Jan 2005 13:50:32 -0000
Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-help/>
List-Post: <mailto:gcc-help@gcc.gnu.org>
List-Help: <mailto:gcc-help-help@gcc.gnu.org>
Sender: gcc-help-owner@gcc.gnu.org
Received: (qmail 16492 invoked from network); 7 Jan 2005 13:50:22 -0000
Received: from unknown (HELO npri54mai02.npt.nuwc.navy.mil) (164.223.1.101)
  by sourceware.org with SMTP; 7 Jan 2005 13:50:22 -0000
Received: from npri54exc24.npt.nuwc.navy.mil
 (NPRI54EXC24.NPT.NUWC.NAVY.MIL [129.190.70.87])
 by npri54mai02.npt.nuwc.navy.mil (PMDF V6.2-X17 #30632)
 with ESMTP id <DTEW08P8RY5WUD01K4@npri54mai02.npt.nuwc.navy.mil> for
 gcc-help@gcc.gnu.org; Fri, 07 Jan 2005 08:50:18 -0500 (Eastern Standard Time)
Received: from NPRI54EXC24.NPT.NUWC.NAVY.MIL ([129.190.70.87])
 by npri54exc24.npt.nuwc.navy.mil with SMTP
 (Microsoft Exchange Internet Mail Service Version 5.5.2657.72)
	id CN4CFSWH; Fri, 07 Jan 2005 08:50:17 -0500
Received: from 129.190.170.200 by npri54exc24.npt.nuwc.navy.mil
 (InterScan E-Mail VirusWall NT); Fri, 07 Jan 2005 08:50:16 -0500
Date: Fri, 07 Jan 2005 13:50:00 -0000
From: Christian Convey <conveycj@npt.nuwc.navy.mil>
Subject: Re: iostream not visible in g++
In-reply-to: <20050107111733.38991.qmail@web50310.mail.yahoo.com>
To: gcc-help@gcc.gnu.org
Message-id: <41DE9352.3020800@npt.nuwc.navy.mil>
MIME-version: 1.0
Content-type: text/plain; format=flowed; charset=ISO-8859-1
Content-transfer-encoding: 7bit
User-Agent: Mozilla Thunderbird 0.9 (X11/20041124)
References: <20050107111733.38991.qmail@web50310.mail.yahoo.com>
X-SW-Source: 2005-01/txt/msg00033.txt.bz2

Hi,

IIRC, some release of GCC moved objects like "cout" from the global namespace to 
the std:: namespace.

So for code that use to look like this:
    #include <iostream>
    void foo() { cout << "Hello, World!" << endl;}

I now have the code look like this (by adding the 2nd line):
    #include <iostream>
    using namespace std;
    void foo() { cout << "Hello, World!" << endl;}


Alternatively, if I didn't want to use the statement "using namespace std;", I 
could instead write code as follows (by adding the "std::" prefix where necessary):
    #include <iostream>
    void foo() { std::cout << "Hello, World!" << std::endl;}


Hope this helps,
Christian


deepak prabhas soi wrote:
> Hi,
>     I am running the gcc 3.4.2 . The .c files are
> compiling properly but when using g++ for compilation
> of  c++ files,I can't compile even a single line file.
> Infact it gives problem in the inclusion of iostream.h
> file. what can be error. How can i make these standard
> libraries visible to program.I am getting the error as
>   
> 
> iostream: No such file or directory
> /hm/tmp.cpp: In function `int main()':
> /hm/tmp.cpp:17: error: `cout' undeclared (first use
> this function)
> /hm/tmp.cpp:17: error: (Each undeclared identifier is
> reported only once for each function it appears in.)
> /hm/tmp.cpp:17: error: `endl' undeclared (first use
> this function)
> 
> 
> Can anybody please help me, how can i make these
> standard libraries to be visible. I need it urgently.
> 
> regards
> Prabhas
> 
> =====
> If facts don't fit theory, change the facts
>                                                         -Albert Einstein
> 
> 
> 		
> __________________________________ 
> Do you Yahoo!? 
> The all-new My Yahoo! - Get yours free! 
> http://my.yahoo.com 
>  
> 

-- 
Christian Convey
Computer Scientist,
Naval Undersea Warfare Center
Newport, RI