C++ compiling in mandrake 10.1

graciejj_82 · 03-07-2006, 09:17 PM

I'm trying to learn c++. I've wrote a small little "Hello Worl" and I'm trying to compile it. I've used the commands "c++" and "g++" but they both say they don't exist.

I can use the command "cpp -o test cpp.cpp" and it tells me
cpp.cpp:4:20: iostream: No such file or directory
cpp.cpp:10:1: warning: no newline at end of file

I wrote the code in kwrite, and it is as follows.
//C++ Program
//Writen by:Michael

#include <iostream.h>

int main()
{
cout << "Hello World"\n<<;
return 0;
}

I just recently switched to mandrake from fedora 2, and I could make it work fine in Fedora, but it doesn't want to cooperate now. Please help.

Thanks alot,
Michael

Nylex · 03-08-2006, 01:33 AM

cpp isn't a compiler, it's the preprocessor. Are you sure you have gcc-c++ (or whatever the package is called under Mandrake) installed?

reddazz · 03-08-2006, 03:21 AM

As mentioned by Nylex, you need gcc-g++ and to compile your app you would do

Code:

$g++ program.cpp -o program

Your code should be something like this

Code:

//C++ Program
//Writen by:Michael

#include <iostream>
using namespace std;
int main()
{
    cout << "Hello World\n";
    return 0;
}

The reason is that declarion of headers has changed slightly in the latest C++ standards.

graciejj_82 · 03-08-2006, 07:46 AM

So if I can get "gcc" or "g++" on my pc, I won't even use "cpp"? And if so, assuming its not on my install cds, where would i get it??

reddazz · 03-08-2006, 09:58 AM

gcc-g++ is on your installation disks so you can install it using the software module in the Mandriva Control Center. You don't use cpp, you use gcc or g++ to compile you apps.

graciejj_82 · 03-08-2006, 04:55 PM

I checked my install cd's, and I don't see them. I did find some stuff for perl, but havn't looked at it.

I do have some fedora 2 cd's, and I know i've used some c++ in fedora, could I install off of those cd's?

reddazz · 03-08-2006, 05:05 PM

GCC and GCC-C++ are on the Mandriva installation discs. You need to install your packages using the Mandriva Control Center's software module i.e. Kmenu -> System -> Configuration -> Configure Your Computer. Enter roots password when prompted, then go to Look at Installable Software and Install Software. Search for gcc and a list of gcc related packages will be shown. Tick those you wish to install and insert your installation disc when prompted.