Struct template throw_

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## Struct template throw_

boost::xpressive::op::throw_

## Synopsis

    template<typename Except>
    struct throw_ {
      // types
      typedef void result_type;

      // public member functions
      void operator()() const;
      template<typename A0> void operator()(A0 const &) const;
      template<typename A0, typename A1>
        void operator()(A0 const &, A1 const &) const;
      template<typename A0, typename A1, typename A2>
        void operator()(A0 const &, A1 const &, A2 const &) const;
    };

## Description

### `throw_` public member functions

1.     void operator()() const;

2.     template<typename A0> void operator()(A0 const & a0) const;

3.     template<typename A0, typename A1>
         void operator()(A0 const & a0, A1 const & a1) const;

4.     template<typename A0, typename A1, typename A2>
         void operator()(A0 const & a0, A1 const & a1, A2 const & a2) const;