DiscreteUniform::result_type is ambiguous

[Peter]

DiscreteUniform inherits from both Discrete and std::unary_function<unsigned long, unsigned long> and since Discrete has

typedef unsigned long int result_type;

and unary_function is defined as

template <class Arg, class Result>
  struct unary_function {
    typedef Arg argument_type;
    typedef Result result_type;
  };

which means DiscreteUniform::result_type is inherited multiple times. Solution is to cull the inheritance from unary_function and typdef an argument_type

[Peter]

In 3892:

fixes #942

[Peter]

In 3923:

fixes #942; getvector now clears the passed vector<T> before populating it with values from the istream regardless of whether T is string or numeric.