Use g++ command to compile a C++ program and build the executable so that you can run the C++ program on the Mac terminal. Below is the syntax of g++ command:
g++ Syntax
g++ programname.cpp -o executablename
Example
Suppose you have written a C++ program in a file named hellow.cpp. Then open the terminal window change the directory to the file location and execute the following g++ command:
g++ hellow.cpp -o hellow ./hellow
The above first command will compile the hellow.cpp and build the executable hellow. The command in the second line above will run the C++ program hellow.
