stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/thread/detail/nullary_function.hpp

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+// Copyright (C) 2013 Vicente J. Botet Escriba
+//
+//  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)
+//
+// 2013/09 Vicente J. Botet Escriba
+//    Adapt to boost from CCIA C++11 implementation
+//    Make use of Boost.Move
+
+#ifndef BOOST_THREAD_DETAIL_NULLARY_FUNCTION_HPP
+#define BOOST_THREAD_DETAIL_NULLARY_FUNCTION_HPP
+
+#include <boost/config.hpp>
+#include <boost/thread/detail/memory.hpp>
+#include <boost/thread/detail/move.hpp>
+#include <boost/thread/csbl/memory/shared_ptr.hpp>
+#include <boost/type_traits/decay.hpp>
+
+namespace boost
+{
+  namespace detail
+  {
+
+    template <typename F>
+    class nullary_function;
+    template <>
+    class nullary_function<void()>
+    {
+      struct impl_base
+      {
+        virtual void call()=0;
+        virtual ~impl_base()
+        {
+        }
+      };
+      csbl::shared_ptr<impl_base> impl;
+      template <typename F>
+      struct impl_type: impl_base
+      {
+        F f;
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+        impl_type(F &f_)
+          : f(f_)
+        {}
+#endif
+        impl_type(BOOST_THREAD_RV_REF(F) f_)
+          : f(boost::move(f_))
+        {}
+
+        void call()
+        {
+          f();
+        }
+      };
+      struct impl_type_ptr: impl_base
+      {
+        void (*f)();
+        impl_type_ptr(void (*f_)())
+          : f(f_)
+        {}
+        void call()
+        {
+          f();
+        }
+      };
+    public:
+      BOOST_THREAD_COPYABLE_AND_MOVABLE(nullary_function)
+
+      explicit nullary_function(void (*f)()):
+      impl(new impl_type_ptr(f))
+      {}
+
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+      template<typename F>
+      explicit nullary_function(F& f):
+      impl(new impl_type<F>(f))
+      {}
+#endif
+      template<typename F>
+      nullary_function(BOOST_THREAD_RV_REF(F) f):
+      impl(new impl_type<typename decay<F>::type>(thread_detail::decay_copy(boost::forward<F>(f))))
+      {}
+
+      nullary_function()
+        : impl()
+      {
+      }
+      nullary_function(nullary_function const& other) BOOST_NOEXCEPT :
+      impl(other.impl)
+      {
+      }
+      nullary_function(BOOST_THREAD_RV_REF(nullary_function) other) BOOST_NOEXCEPT :
+#if defined BOOST_NO_CXX11_SMART_PTR
+      impl(BOOST_THREAD_RV(other).impl)
+      {
+        BOOST_THREAD_RV(other).impl.reset();
+      }
+#else
+      impl(boost::move(other.impl))
+      {
+      }
+#endif
+      ~nullary_function()
+      {
+      }
+
+      nullary_function& operator=(BOOST_THREAD_COPY_ASSIGN_REF(nullary_function) other) BOOST_NOEXCEPT
+      {
+        impl=other.impl;
+        return *this;
+      }
+      nullary_function& operator=(BOOST_THREAD_RV_REF(nullary_function) other) BOOST_NOEXCEPT
+      {
+#if defined BOOST_NO_CXX11_SMART_PTR
+        impl=BOOST_THREAD_RV(other).impl;
+        BOOST_THREAD_RV(other).impl.reset();
+#else
+        impl = boost::move(other.impl);
+#endif
+        return *this;
+      }
+
+
+      void operator()()
+      { if (impl) impl->call();}
+
+    };
+
+    template <typename R>
+    class nullary_function<R()>
+    {
+      struct impl_base
+      {
+        virtual R call()=0;
+        virtual ~impl_base()
+        {
+        }
+      };
+      csbl::shared_ptr<impl_base> impl;
+      template <typename F>
+      struct impl_type: impl_base
+      {
+        F f;
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+        impl_type(F &f_)
+          : f(f_)
+        {}
+#endif
+        impl_type(BOOST_THREAD_RV_REF(F) f_)
+          : f(boost::move(f_))
+        {}
+
+        R call()
+        {
+          return f();
+        }
+      };
+      struct impl_type_ptr: impl_base
+      {
+        R (*f)();
+        impl_type_ptr(R (*f_)())
+          : f(f_)
+        {}
+
+        R call()
+        {
+          return f();
+        }
+      };
+    public:
+      BOOST_THREAD_COPYABLE_AND_MOVABLE(nullary_function)
+
+      nullary_function(R (*f)()):
+      impl(new impl_type_ptr(f))
+      {}
+#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
+      template<typename F>
+      nullary_function(F& f):
+      impl(new impl_type<F>(f))
+      {}
+#endif
+      template<typename F>
+      nullary_function(BOOST_THREAD_RV_REF(F) f):
+      impl(new impl_type<typename decay<F>::type>(thread_detail::decay_copy(boost::forward<F>(f))))
+      {}
+
+      nullary_function(nullary_function const& other) BOOST_NOEXCEPT :
+      impl(other.impl)
+      {
+      }
+      nullary_function(BOOST_THREAD_RV_REF(nullary_function) other) BOOST_NOEXCEPT :
+#if defined BOOST_NO_CXX11_SMART_PTR
+      impl(BOOST_THREAD_RV(other).impl)
+      {
+        BOOST_THREAD_RV(other).impl.reset();
+      }
+#else
+      impl(boost::move(other.impl))
+      {
+      }
+#endif
+      nullary_function()
+        : impl()
+      {
+      }
+      ~nullary_function()
+      {
+      }
+
+      nullary_function& operator=(BOOST_THREAD_COPY_ASSIGN_REF(nullary_function) other) BOOST_NOEXCEPT
+      {
+        impl=other.impl;
+        return *this;
+      }
+      nullary_function& operator=(BOOST_THREAD_RV_REF(nullary_function) other) BOOST_NOEXCEPT
+      {
+#if defined BOOST_NO_CXX11_SMART_PTR
+        impl=BOOST_THREAD_RV(other).impl;
+        BOOST_THREAD_RV(other).impl.reset();
+#else
+        impl = boost::move(other.impl);
+#endif
+        return *this;
+      }
+
+      R operator()()
+      { if (impl) return impl->call(); else return R();}
+
+    };
+  }
+  BOOST_THREAD_DCL_MOVABLE_BEG(F) detail::nullary_function<F> BOOST_THREAD_DCL_MOVABLE_END
+}
+
+#endif // header