C++ in knoppix

Let's take a sample code:

Now to compile this:

To finally run out compiled binary:

Do all this in the terminal. If any other problem persists, do report here.

QwertyManiac said:

Let's take a sample code:

Code:

[COLOR=#bc7a00]#include <iostream> [/COLOR][COLOR=#408080][I]// No .h's for standard libraries anymore
[/I][/COLOR]
[COLOR=#008000][B]using[/B][/COLOR] [COLOR=#008000][B]namespace[/B][/COLOR] std;
[COLOR=#408080][I]// All the standard headers use this namespace,
// so lets make it common. 
// Else we type std::cout and std::endl, and so on.
// Just think of it as,
// cout, endl, cin, etc default functions
// belong to this large class
// (actually name-space) called [B]std[/B] (standard).
[/I][/COLOR]
[COLOR=#b00040]int[/COLOR] main () [COLOR=#408080][I]// main must always return int now on ...
[/I][/COLOR]{
    cout[COLOR=#666666]<<[/COLOR][COLOR=#ba2121]"Hello"[/COLOR][COLOR=#666666]<<[/COLOR][COLOR=#ba2121]" "[/COLOR][COLOR=#666666]<<[/COLOR][COLOR=#ba2121]"World"[/COLOR][COLOR=#666666]<<[/COLOR]endl;
    [COLOR=#008000][B]return[/B][/COLOR] [COLOR=#666666]0[/COLOR];
}

[COLOR=#408080][I]// Save as file.cpp[/I][/COLOR]

Now to compile this:

Code:

[COLOR=#408080][I]# Use g++, the default GNU C++ compiler.
[/I][/COLOR]g++ file.cpp -o outfile
[COLOR=#408080][I]# Outfile is the output (binary, executable) file name. By default it is a.out (Assembler.output)
[/I][/COLOR]

To finally run out compiled binary:

Code:

./outfile [COLOR=#408080][I]# or use: sh outfile[/I][/COLOR]

Do all this in the terminal. If any other problem persists, do report here.

Click to expand...

Nice explaination QWERTY ......can u please ......assign me same for the c language.
only conio.h not works in gcc .....?any other differences ....??

I guess that's about it. The main() must return int, and can't be void.

QwertyManiac said:

I guess that's about it. The main() must return int, and can't be void.

Click to expand...

Thats because ANSI C - 99 standards. Not because of gcc.