RE: [PLUG] gcc vs cc vs c++

"Bradley Molnar" <brad-current@litech.org> · Wed, 8 Oct 2003 14:03:18 -0400

thanks that clears it up.
For a moment, I thought that I had forgotten how to do c++.
-b
-----Original Message-----
From: plug-admin@lists.phillylinux.org
[mailto:plug-admin@lists.phillylinux.org]On Behalf Of Mental Patient
Sent: Wednesday, October 08, 2003 12:49 PM
To: plug@lists.phillylinux.org
Subject: Re: [PLUG] gcc vs cc vs c++
Kyle R. Burton wrote:
> gcc/cc treats the source code as C, where that syntax involving cout
> means something (very) different (left-shift). g++/c++ treats the
> source code as C++ where operator overloading on the cout object (an
> ostream) makes the left-shift operation mean something completely
> different (equivalent to a function call, like write).
> 
> The link error is related to the default libraries that are linked in,
> for gcc/cc it's just libc (and maybe some others). For g++/c++ it should
> include libstdc++ (which is where cout and other things live).
> 
To follow up on this, its the same compiler. Its just that when you 
invoke gcc as g++, as Kyle points out, it goes into C++ mode. You can 
use gcc as gcc if you specify the language and link with the appropriate 
librarys. For the simple example of:
#include <ostream.h>
int main()
{
 cout << "Hello, World" << endl;
 return 0;
}
You could compile this with either:
g++ foo.cpp
or
gcc -std=gnu++98 -lstdc++ foo.cpp
I'd recomnend not doing the latter. C++ is sufficiently complex that 
there are good reasons for g++ to exist.
-- 
Mental (Mental@NeverLight.com)
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Each claimed as the infallible word of GOD.
Misquoted, misinterpreted, misunderstood, and misapplied.
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