Added thirdparty: boost library

thirdparty/include/boost/iterator/function_output_iterator.hpp

@@ -0,0 +1,95 @@
+// (C) Copyright Jeremy Siek 2001.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// Revision History:
+
+// 27 Feb 2001   Jeremy Siek
+//      Initial checkin.
+
+#ifndef BOOST_ITERATOR_FUNCTION_OUTPUT_ITERATOR_HPP
+#define BOOST_ITERATOR_FUNCTION_OUTPUT_ITERATOR_HPP
+
+#include <iterator>
+#include <boost/config.hpp>
+#include <boost/core/enable_if.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+#include <boost/type_traits/remove_reference.hpp>
+#endif
+
+namespace boost {
+namespace iterators {
+
+  template <class UnaryFunction>
+  class function_output_iterator {
+  private:
+    typedef function_output_iterator self;
+
+    class output_proxy {
+    public:
+      explicit output_proxy(UnaryFunction& f) BOOST_NOEXCEPT : m_f(f) { }
+
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+      template <class T>
+      typename boost::disable_if_c<
+        boost::is_same< typename boost::remove_cv< T >::type, output_proxy >::value,
+        output_proxy&
+      >::type operator=(const T& value) {
+        m_f(value);
+        return *this;
+      }
+#else
+      template <class T>
+      typename boost::disable_if_c<
+        boost::is_same< typename boost::remove_cv< typename boost::remove_reference< T >::type >::type, output_proxy >::value,
+        output_proxy&
+      >::type operator=(T&& value) {
+        m_f(static_cast< T&& >(value));
+        return *this;
+      }
+#endif
+
+      BOOST_DEFAULTED_FUNCTION(output_proxy(output_proxy const& that), BOOST_NOEXCEPT : m_f(that.m_f) {})
+      BOOST_DELETED_FUNCTION(output_proxy& operator=(output_proxy const&))
+
+    private:
+      UnaryFunction& m_f;
+    };
+
+  public:
+    typedef std::output_iterator_tag iterator_category;
+    typedef void                value_type;
+    typedef void                difference_type;
+    typedef void                pointer;
+    typedef void                reference;
+
+    explicit function_output_iterator() {}
+
+    explicit function_output_iterator(const UnaryFunction& f)
+      : m_f(f) {}
+
+    output_proxy operator*() { return output_proxy(m_f); }
+    self& operator++() { return *this; }
+    self& operator++(int) { return *this; }
+
+  private:
+    UnaryFunction m_f;
+  };
+
+  template <class UnaryFunction>
+  inline function_output_iterator<UnaryFunction>
+  make_function_output_iterator(const UnaryFunction& f = UnaryFunction()) {
+    return function_output_iterator<UnaryFunction>(f);
+  }
+
+} // namespace iterators
+
+using iterators::function_output_iterator;
+using iterators::make_function_output_iterator;
+
+} // namespace boost
+
+#endif // BOOST_ITERATOR_FUNCTION_OUTPUT_ITERATOR_HPP