1 files changed, 80 insertions, 0 deletions
diff --git a/libcult/cult/mm/buffer.hxx b/libcult/cult/mm/buffer.hxx
new file mode 100644
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--- /dev/null
+++ b/libcult/cult/mm/buffer.hxx
@@ -0,0 +1,80 @@
+// file      : cult/mm/buffer.hxx
+// author    : Boris Kolpackov <boris@kolpackov.net>
+// copyright : Copyright (c) 2005-2010 Boris Kolpackov
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef CULT_MM_BUFFER_HXX
+#define CULT_MM_BUFFER_HXX
+
+#include <cult/types/fundamental.hxx>
+
+#include <cult/mm/exception.hxx>
+
+namespace Cult
+{
+  namespace MM
+  {
+    //@@ why can't capacity be zero?
+    //
+
+    class Buffer
+    {
+    public:
+      struct Bounds: virtual Exception {};
+      struct ZeroCapacity: virtual Exception {};
+
+    public:
+      virtual
+      ~Buffer ();
+
+      Buffer (Size capacity, Size size = 0)
+        throw (ZeroCapacity, Bounds, BadAlloc);
+
+      Buffer (Void const*, Size size);
+
+      Buffer (Buffer const& other);
+
+    private:
+      Buffer&
+      operator= (Buffer const&);
+
+    public:
+      Size
+      capacity () const throw ();
+
+      // Returns true if the underlying buffer has been moved.
+      //
+      Boolean
+      capacity (Size capacity) throw (ZeroCapacity, Bounds, BadAlloc);
+
+    public:
+      Size
+      size () const throw ();
+
+      Void
+      size (Size size) throw (Bounds);
+
+    public:
+      Index
+      position () const throw ();
+
+      Void
+      position (Index) throw (Bounds);
+
+    public:
+      Char const*
+      data () const;
+
+      Char*
+      data ();
+
+    private:
+      Void* b_;
+      Size c_, s_, p_;
+    };
+  }
+
+  using MM::Buffer;
+}
+
+#endif  // CULT_MM_BUFFER_HXX