To link all the modules together requires running g++ hello.o hello-writer.o -o helloĬreating the program hello. The -c flag skips the linking for the moment.

G++ -c hello-writer.cpp -o hello-writer.o The *.cpp files are converted to object files by g++, using the commands g++ -c hello.cpp -o hello.o You have 3 files, hello.cpp hello-writer.cpp and hello-writer.h, the contents being // hello-writer.h Let's say you want to write a simple 'hello world' application. (If it makes any difference, I am running Mac OS X, with gcc 4.0.1 and make 3.81) I would really like to know the what, how, and why of building C++. What I am looking for, is either an explanation, or link to a tutorial that explains, the workflow for a C++ project, from first writing the code up to running the produced executable. I know what the linker does, but not how to use it. I know what gcc does, but not how to use it. I know what Makefiles are, but not how to write them. The thing is, although IDEs do all this under the hood, making life very easy, I don't really know what is really happening, and feel that I need to get accustomed to building projects the 'old fashioned way': from the command line, using the tool chain explicitly. I also know most projects also use make to streamline the process of compiling and linking multiple source and header files. I understand the process behind building a project: compile source to object code, then link them into an executable that is platform specific (. However, I have only built my projects with IDEs, including VS08 and QtCreator. After all, he’s known me for a loooong time (in nanoseconds).I have been learning C++ in school to create small command-line programs. In the back of my mind I thought “he” (I happen to think of “him” as a guy) might instead give me a solution for a Python version of the initial question - since I provided no additonal context. So I typed that exact phrase into ChatGPT. Basically we had an answer to the question.īut, I thought “Actually, better to do it in Python, right?” #include // Define the struct struct MyStruct

C++ code writer