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C++ Template

#ifndef FOO_BAR_BAZ_H_
#define FOO_BAR_BAZ_H_

namespace mynamespace {

// All declarations are within the namespace scope.
// Notice the lack of indentation.
class MyClass {
 public:
  ...
  void Foo();
};

}  // namespace mynamespace

#endif  // FOO_BAR_BAZ_H_
// In the .cc file
namespace mynamespace {

// Definition of functions is within scope of the namespace.
void MyClass::Foo() {
  ...
}

}  // namespace mynamespace

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