title: Visual Studio 2010 multiple cpp files
body: <p>I'm pretty new to Visual Studio and I'm currently working on a project in which I want to use multiple .cpp files. Basically I want to make a function outside main.cpp in function.cpp and that function should be able to change global variables. Then I'd use that function in main.cpp.</p>
  
  <p>I tried making a header named globals.h and putting static variables in it. I included globals.h in both main and function.cpp and it compiled but whenever I call that function in main it does absolutely nothing.
  When I try to include function.cpp in main.cpp I get multiple definition error while compiling.</p>
  
  <p>What am I doing wrong? Thanks in advance!</p>