Error when running a C code in eclipse

Question

I was trying my first c program in eclipse. Now after installing the c/c++ plugin i have c/c++ perspective.

But when I tried to run this simple C code, a window pops up titled "Application

Launcher", and it contains the following message: "Launch failed.Binary not found".

Please let me know if the mistake in the c code I wrote or in any something else.

C code:

#include <iostream.h>

main() {
    cout<<"Hello world!\n";
}

http://stackoverflow.com/questions/9407430/launch-failed-binary-not-found-eclipse-for-c-in-windows — Maroun, May 07 '13 at 08:53
You have a couple of errors in your code (if you named your file with the proper extension, otherwise you have a lot of errors). Because of this it will not build, and no program will be generated, leading to the failed launch because no program was found. — Some programmer dude, May 07 '13 at 08:55
Eclipse IDE for C/C++ Developers does not contain a compiler or debugger; if your system does not have one, you need to download and install one. — Leo Chapiro, May 07 '13 at 08:56

score 0 · Answer 1 · answered May 07 '13 at 09:19

the code you put is C++ code and not C code.

with Eclipse you have first to create new project:

File --> New --> C++ Project --> Executable --> Emptyproject

Give a name to your project and then continue the setting till finish the creation of the project

Edit your C++ source code and then build your project with

Project --> Build All

And then run your binary with the famous green button. or with:

Run --> Run

score 0 · Answer 2 · answered May 07 '13 at 09:25

Correct C++ code is

#include <iostream>

int main() {
    std::cout<<"Hello world!\n";
}

Note it's <iostream> not <iostream.h>, std::cout not cout, and int main not main. These mistakes seem to indicate you are learning C++ from a very out of date source.

score 0 · Answer 3 · edited May 23 '17 at 11:49

That's not C; it's an ancient dialect of C++, which a modern compiler will probably reject even if you don't try to build it as C.

A "hello world" in C might look like:

#include <stdio.h>

int main() {
    printf("Hello world!\n");
}

and in this century's dialects of C++:

#include <iostream>

int main() {
    std::cout << "Hello world!\n";
}

Now you should decide whether to learn C or C++ (which are very different languages), and find a good book on the subject. For C++, start here.

Error when running a C code in eclipse

3 Answers3