Step-by-Step Guide for Installing the GCC Compiler on Your Raspberry Pi

Learn how to install the GCC compiler and use it to compile and run C++ programs on your Raspberry Pi. This article will walk you through the process from start to finish, providing clear instructions …

Updated August 18, 2023

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Open a terminal window by clicking on the “Terminal” icon in the top menu or pressing Ctrl+Alt+T.
Update the package lists with the following command:
```
sudo apt update
```
Install the GCC compiler with this command:
```
sudo apt install g++
```
Verify that the installation was successful by checking the version of the compiler:
```
g++ --version
```
This should output something like g++ (Raspbian 8.3.0-6+rpi1) 8.3.0.

Now you have the GCC compiler installed on your Raspberry Pi, and can start writing and compiling C++ programs! Here’s a quick example to get started:

Create a new file called hello.cpp using your favorite text editor (e.g., nano):
```
nano hello.cpp
```

Add the following code to the file and save it:

#include <iostream>

int main() {
    std::cout << "Hello, world!" << std::endl;
    return 0;
}

Compile the program using g++:
```
g++ hello.cpp -o hello
```
Run the compiled program:
```
./hello
```
This should output Hello, world! in your terminal window. Congratulations, you’ve just written and run your first C++ program on a Raspberry Pi!

If you encounter any issues during installation or compilation, make sure that your Raspberry Pi is connected to the internet and check for updates using:

sudo apt upgrade

Also, if you prefer an integrated development environment (IDE) to write and run C++ programs on your Raspberry Pi, there are several options available, such as Code::Blocks or Eclipse CDT. You can install them by following the instructions provided in their respective documentation.