C++ in knoppix

[Manojap]

Give an example of cpp progrm in knoppix, a linux flavor.
Pleas explain..
Compiling
viewing out put

[QwertyManiac]

Let's take a sample code:

#include <iostream> // No .h's for standard libraries anymore

using namespace std;
// 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 std (standard).

int main () // main must always return int now on ...
{
    cout<<"Hello"<<" "<<"World"<<endl;
    return 0;
}

// Save as file.cpp

Now to compile this:

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

To finally run out compiled binary:

./outfile # or use: sh outfile

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

[ambika]

Originally Posted by QwertyManiac

Let's take a sample code:

#include <iostream> // No .h's for standard libraries anymore

using namespace std;
// 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 std (standard).

int main () // main must always return int now on ...
{
    cout<<"Hello"<<" "<<"World"<<endl;
    return 0;
}

// Save as file.cpp

Now to compile this:

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

To finally run out compiled binary:

./outfile # or use: sh outfile

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

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

[QwertyManiac]

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

[Garbage]

Originally Posted by QwertyManiac

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

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