From 146cd9dc8796944391b919e7add8da9463eea20a Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 2 Jul 2015 11:46:06 +0200
Subject: Specialize container traits for std::vector<bool>

Since we cannot access elements directly.
---
 odb/std-vector-traits.hxx | 54 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/odb/std-vector-traits.hxx b/odb/std-vector-traits.hxx
index e967b09..4c83497 100644
--- a/odb/std-vector-traits.hxx
+++ b/odb/std-vector-traits.hxx
@@ -63,6 +63,60 @@ namespace odb
       f.delete_ ();
     }
   };
+
+  // std::vector<bool> is special.
+  //
+  template <typename A>
+  class access::container_traits<std::vector<bool, A> >
+  {
+  public:
+    static const container_kind kind = ck_ordered;
+    static const bool smart = false;
+
+    typedef std::vector<bool, A> container_type;
+
+    typedef bool value_type;
+    typedef typename container_type::size_type index_type;
+
+    typedef ordered_functions<index_type, value_type> functions;
+
+  public:
+    static void
+    persist (const container_type& c, const functions& f)
+    {
+      for (index_type i (0), n (c.size ()); i < n; ++i)
+        f.insert (i, c[i]);
+    }
+
+    static void
+    load (container_type& c, bool more, const functions& f)
+    {
+      c.clear ();
+
+      while (more)
+      {
+        index_type dummy;
+        value_type value;
+        more = f.select (dummy, value);
+        c.push_back (value);
+      }
+    }
+
+    static void
+    update (const container_type& c, const functions& f)
+    {
+      f.delete_ ();
+
+      for (index_type i (0), n (c.size ()); i < n; ++i)
+        f.insert (i, c[i]);
+    }
+
+    static void
+    erase (const functions& f)
+    {
+      f.delete_ ();
+    }
+  };
 }
 
 #include <odb/post.hxx>
-- 
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