From 68ca8ec3227d447c6898b7c75d8ea0fb82a4af36 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 9 Dec 2010 10:36:15 +0200
Subject: Add lazy pointer support

Built-in support is provided for raw, auto, and tr1 shared/weak pointers.
New test: common/lazy-ptr.
---
 common/lazy-ptr/tr1-memory.hxx | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 common/lazy-ptr/tr1-memory.hxx

(limited to 'common/lazy-ptr/tr1-memory.hxx')

diff --git a/common/lazy-ptr/tr1-memory.hxx b/common/lazy-ptr/tr1-memory.hxx
new file mode 100644
index 0000000..8965861
--- /dev/null
+++ b/common/lazy-ptr/tr1-memory.hxx
@@ -0,0 +1,41 @@
+// file      : common/lazy-ptr/tr1-memory.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#ifndef TR1_MEMORY_HXX
+#define TR1_MEMORY_HXX
+
+//@@ tmp
+#define HAVE_TR1_MEMORY
+
+//
+// Try to include TR1 <memory> in a compiler-specific manner. Fall-back
+// on the Boost TR1 implementation if the compiler does not support TR1.
+//
+
+#include <cstddef> // __GLIBCXX__, _HAS_TR1
+
+// GNU C++ or Intel C++ using libstd++.
+//
+#if defined (__GNUC__) && __GNUC__ >= 4 && defined (__GLIBCXX__)
+#  include <tr1/memory>
+//
+// IBM XL C++.
+//
+#elif defined (__xlC__) && __xlC__ >= 0x0900
+#  define __IBMCPP_TR1__
+#  include <memory>
+//
+// VC++ or Intel C++ using VC++ standard library.
+//
+#elif defined (_MSC_VER) && \
+  (_MSC_VER == 1500 && defined (_HAS_TR1) || _MSC_VER > 1500)
+#  include <memory>
+//
+// Boost fall-back.
+//
+#else
+#  include <boost/tr1/memory.hpp>
+#endif
+
+#endif // TR1_MEMORY_HXX
-- 
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