Unclear convention for input variable names

[pomerlef]

For now, we use the same input variable name as the member name, especially in the constructor. This might causes some problem on the the long run.

Problematic example:

class foo
{
  int variableName;

  //constructor
  foo(int variableName);
};

foo::foo(int variableName):
  variableName(variableName)
{}

Possible solution: add the suffix _in to the input variables:

foo::foo(int variableName_in):
  variableName(variableName_in)
{}

[pomerlef]

We need an opinion on that...