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From: "Fausto Arinos de A. Barbuto" <barbuto AT ax DOT apc DOT org>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Hello, World!  ==  753 KB
Date: Thu, 21 Feb 2002 21:19:32 -0800
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"A. Sinan Unur" <asu1 AT cornell DOT edu> wrote in message:

> >     That's what I get when I compile the code below with
> >     "gpp -o hello.exe hello.cpp" (gcc version 3.0.3).

> this is a faq so i suggest you check it.

    You're right. I apologize for that.

> > //---------CUT HERE---------
> > #include <iostream.h>

> ^^^ You should use the new style headers so that the compiler
> catch your errors:

    Where could I read about those new style headers?

> C:\DOCUME~1\asu1\LOCALS~1\Temp>gpp t.cc -o t.exe -Wall -O2
> t.cc: In function `int main()':
> t.cc:6: `cout' undeclared (first use this function)
> t.cc:6: (Each undeclared identifier is reported only once for each
> function it appears in.)

    I compiled the program exactly as you indicated above
    and got no error/warning messages. An executable was
    generated and it worked as intended (that is, displaying
    the "Hello, World!" message).

> you will need a using std::cout; to make your code work.

    No, I don't. The program works anyway.

> > #include <math.h>
>
> similarly, use <cmath>.

    The math.h header was included in the code by mistake.
    It shouldn't be there. Thanks for the hint anyway!

    And thanks for taking the time to reply to my note.

---Fausto