Okay here are the conventions for this project.

macros   - all caps (MY_MACRO)
enum     - same as macros

classes  - cap each word lower others (Signal)
private classes - same as class with underscore or trailing _ (BasicSignal_)

function - lowercase with underscore (foo_bar())
methods  - lowercase with underscore (m.foo_bar())
data     - lowercase (m.mydata)
private data - lowercase with trailing underscore (m.mydata_)

Namespaces are used where possible.  

Format is GNU or modified GNU (indent first bracket)

class MyClass
  { 
    MyClass();
  }