- 1 year ago
How to compile on Windows with the g++ compiler and the Eigen library
To compile a C++ program on Windows using the g++ compiler and the Eigen library, you can follow these steps:
Install MinGW: Download and install the MinGW (Minimalist GNU for Windows) toolset, which includes the g++ compiler. Make sure to add MinGW's
bin
directory to your system's PATH environment variable.Download Eigen: Visit the Eigen website (http://eigen.tuxfamily.org) and download the latest stable version of the library. Extract the contents of the downloaded archive to a convenient location on your system.
Write your C++ code: Create a new C++ source file with your preferred text editor. Write your code that includes Eigen library headers and uses Eigen functionality.
Compile the code: Open a command prompt and navigate to the directory where your C++ source file is located. Use the following command to compile the code:
bashg++ -I /path/to/eigen your_code.cpp -o output.exe
Replace
/path/to/eigen
with the actual path to the directory where you extracted the Eigen library.This command tells the g++ compiler to include the Eigen headers using the
-I
option, specifies your C++ source fileyour_code.cpp
, and outputs the compiled executable tooutput.exe
.Run the program: After successful compilation, you can run the program by executing the generated
output.exe
file.
Make sure you have the g++ compiler and Eigen library correctly installed and that the necessary paths are set up properly. Adjust the commands and paths as per your specific configuration.
Note: The above instructions assume you are using the g++ compiler from MinGW. If you are using a different version or distribution of g++ on Windows, adjust the commands accordingly.