run a program with more than one source files in GNU c++ compiler

Question

I am using DEV GNU c++ compiler on windows 7 OS. I need to know how a program with more than one source file can be compiled. here is example,

#FILE1
void f1()
{
   printf("this is another file under same program");
}

#FILE2

int main()
{
   f1();
   return 0;
}

Actually I need this to test how static, extern class specifier works with more than one file. So only I have to learn now how works with more than one files in a single program in C..

Thanks advance

Answer 1

The technical term for 'multiple files' would be translation units:

g++ file1.cpp file2.cpp -o program

Or you separate compilation and linking

g++ -c file1.cpp -o file1.o
g++ -c file2.cpp -o file2.o

# linking
g++ file1.o file2.o -o program   

But that usually doesn't make sense unless you have a larger project (e.g. with make) and want to reduce build times.