Squid 3 coding style guidelines.

C source guidelines: As per squid-2.

C++ source formatting guidelines.
format c++ source and header files with 

astyle -cs4 -O --break-blocks -l <foo.cc>

C++ style guidelines

header layout:

class Foo{
public:
  static methods
  member methods
 
  static variables
  member variables

protected:
  static methods
  member methods
 
  static variables
  member variables

private:
  static methods
  member methods
 
  static variables
  member variables
};

mandatory coding rules:
- The Big Three: Every class that has one of (Destructor, copy
constructor,
 assignment operator) must have all three. This includes ABC's, and
 derived
 classes.

suggested coding rules
- No macros unless they are absolutely necessary
- words in class names are capitalized, including the first word
- Global variables, including static data members are capitalized
- non global variables and methods should be capitalized after the first word.

example:
class ClassName {
public:
    static ClassName &Instance();
    bool someMethod() const;

private:
    static ClassName TheInstance;
    bool flagForFoo;
};


file naming: .h files should only declare one class.
Any .h file should be parseable as a single translation unit (ie it 
includes it's dependent headers / forward declares classes as needed).

- No two file names that differ only in capitalization