(Beginner) C++ Compilation?
 

I am both a new Linux user and a C++ pogrammer. The tutorial I am reading suggests I use Emacs to compile my programs, if that is what I have. So, I have gotten far enough to have a .cpp file that I made w/ Qt Designer, but when I hit compile in the Emacs, it tells me:


I would appreciate some help.

Not that way
 

Make is for when you have a Makefile, which you don't. To compile in c++ use g++.
Ignacio

Make is only when you have a project with makefile

rather a simple c++ file just go

g++ filename.cpp

All right, this seems to have created "a.out". From there, I am to link it, right? What can I do for that?

a.out is the compilers default executable name.

To run the program type the following:
./a.out

To create an executable with the name of your choosing:
g++ -o app_name source.cpp

app_name will be the name of your program.

Hey, that helps a lot. Thank you very much.

Also, while I am at really humilliating questions, what do I do to run an executable file, that I have created. Is there a terminal command, or an easier way. Clicking at it doesnt seem to do much good. I read that 'Linuxprog' should do it, but it doesnt seem to be Fedora Core 2.

I might also add that ./ is a shortcut for current working directory. Unlike windows, linux only searches the path environment for a command. You can add a directory to the path via your .bash_profile file (assuming your using bash).

What can I do to run this new file, on Fedora Core 2?

i.e in the same terminal console that you compilied the program. Replace a.out with the actual program name.

Great! Thank you.

michaelk
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( post #5)

a.out is the compilers default executable name.

To run the program type the following:
./a.out

To create an executable with the name of your choosing:
g++ -o app_name source.cpp

app_name will be the name of your program.


I have a small doubt, won't this executable you are talking about now, need the installation of gcc in the system running this executable........

if(question is answered)
{
cout<<" thanks!!!!"
}
else
{
cout<<"Maybe you are fed up with such questions"
}


a newbie has many stupid doubts, so please do bear and answer, who knows these newbies may turn out to be goslings in future

Nope
 

1. gcc is just the compiler, so they won't need it
2. It depends on what libraries you used. If only #include s, then they won't need anything.

By the way, I still haven't managed to switch to cout, so I keep using good old printf :P