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diff --git a/src/stlplus/persistence/persistent_float.cpp b/src/stlplus/persistence/persistent_float.cpp
deleted file mode 100644
index 59a6678..0000000
--- a/src/stlplus/persistence/persistent_float.cpp
+++ /dev/null
@@ -1,86 +0,0 @@
-////////////////////////////////////////////////////////////////////////////////
-
-//   Author:    Andy Rushton
-//   Copyright: (c) Southampton University 1999-2004
-//              (c) Andy Rushton           2004-2009
-//   License:   BSD License, see ../docs/license.html
-
-////////////////////////////////////////////////////////////////////////////////
-#include "persistent_float.hpp"
-
-////////////////////////////////////////////////////////////////////////////////
-// Macro for mapping either endian data onto little-endian addressing to make
-// my life easier in writing this code! I think better in little-endian mode
-// so the macro does nothing in that mode but maps little-endian onto
-// big-endian addressing in big-endian mode
-// TODO - make this compile-time configurable
-
-#define INDEX(index) ((context.little_endian()) ? (index) : ((bytes) - (index) - 1))
-
-/////////////////////////////////////////////////////////////////////
-// floating point types
-// format: {size}{byte}*size
-// ordering is msB first
-
-// this uses a similar mechanism to integer dumps. However, it is not clear how
-// the big-endian and little-endian argument applies to multi-word data so
-// this may need reworking by splitting into words and then bytes.
-
-namespace stlplus
-{
-
-  static void dump_float(stlplus::dump_context& context, unsigned bytes, unsigned char* data)
-    throw(stlplus::persistent_dump_failed)
-  {
-    unsigned i = bytes;
-    // put the size
-    context.put((unsigned char)i);
-    // and put the bytes
-    while(i--)
-      context.put(data[INDEX(i)]);
-  }
-
-  static void restore_float(stlplus::restore_context& context, unsigned bytes, unsigned char* data)
-    throw(stlplus::persistent_restore_failed)
-  {
-    // get the dumped size from the file
-    unsigned dumped_bytes = (unsigned)context.get();
-    // get the bytes from the file
-    unsigned i = dumped_bytes;
-    while(i--)
-    {
-      int ch = context.get();
-      if (i < bytes)
-        data[INDEX(i)] = (unsigned char)ch;
-    }
-    // however, if the dumped size was different I don't know how to map the formats, so give an error
-    if (dumped_bytes != bytes)
-      throw stlplus::persistent_restore_failed(std::string("size mismatch"));
-  }
-
-} // end namespace stlplus
-
-  ////////////////////////////////////////////////////////////////////////////////
-  // exported functions which simply call the low-level byte-dump and byte-restore routines above
-
-void stlplus::dump_float(stlplus::dump_context& context, const float& data) throw(stlplus::persistent_dump_failed)
-{
-  stlplus::dump_float(context, sizeof(float), (unsigned char*)&data);
-}
-
-void stlplus::restore_float(restore_context& context, float& data) throw(stlplus::persistent_restore_failed)
-{
-  stlplus::restore_float(context, sizeof(float), (unsigned char*)&data);
-}
-
-void stlplus::dump_double(stlplus::dump_context& context, const double& data) throw(stlplus::persistent_dump_failed)
-{
-  stlplus::dump_float(context, sizeof(double), (unsigned char*)&data);
-}
-
-void stlplus::restore_double(restore_context& context, double& data) throw(stlplus::persistent_restore_failed)
-{
-  stlplus::restore_float(context, sizeof(double), (unsigned char*)&data);
-}
-
-////////////////////////////////////////////////////////////////////////////////