Naming convention for params of ctors and setters

Question

For those of you who name you member variables with no special notation like m_foo or foo_, how do you name parameters to your ctors and setters?

Answer 1

I'm going with

Obj(int foo) : mFoo(foo) { }
void setFoo(int foo) { mFoo = foo; }

in my programs. For copy constructors and operator=, i tend to call it

Obj(Obj const& that):mFoo(that.mFoo) { }

For operators, i'm going with

Obj operator+(Obj const& lhs, Obj const& rhs) { ... }

Because those are the left hand side and the right hand side of it.