From f0510d2f90467de8e8f260b47d79a9baaf9bef17 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 17 Sep 2009 07:15:29 +0200
Subject: Start tracking XSD with git

---
 libxsd/xsd/cxx/tree/serialization/float.hxx | 94 +++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 libxsd/xsd/cxx/tree/serialization/float.hxx

(limited to 'libxsd/xsd/cxx/tree/serialization/float.hxx')

diff --git a/libxsd/xsd/cxx/tree/serialization/float.hxx b/libxsd/xsd/cxx/tree/serialization/float.hxx
new file mode 100644
index 0000000..f5d8a1f
--- /dev/null
+++ b/libxsd/xsd/cxx/tree/serialization/float.hxx
@@ -0,0 +1,94 @@
+// file      : xsd/cxx/tree/serialization/float.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSD_CXX_TREE_SERIALIZATION_FLOAT_HXX
+#define XSD_CXX_TREE_SERIALIZATION_FLOAT_HXX
+
+#include <limits> // std::numeric_limits
+#include <locale>
+#include <sstream>
+
+#include <xsd/cxx/tree/bits/literals.hxx>
+
+namespace xsd
+{
+  namespace cxx
+  {
+    namespace tree
+    {
+      namespace bits
+      {
+        // The formula for the number of decimla digits required is given in:
+        //
+        // http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1822.pdf
+        //
+        template <typename C>
+        std::basic_string<C>
+        insert (float f)
+        {
+          std::basic_string<C> r;
+
+          if (f == std::numeric_limits<float>::infinity ())
+            r = bits::positive_inf<C> ();
+          else if (f == -std::numeric_limits<float>::infinity ())
+            r = bits::negative_inf<C> ();
+          else if (!(f == f))
+            r = bits::nan<C> ();
+          else
+          {
+            std::basic_ostringstream<C> os;
+            os.imbue (std::locale::classic ());
+
+            // Precision.
+            //
+#if defined (XSD_CXX_TREE_FLOAT_PRECISION_MAX)
+            os.precision (2 + std::numeric_limits<float>::digits * 301/1000);
+#elif defined (XSD_CXX_TREE_FLOAT_PRECISION)
+            os.precision (XSD_CXX_TREE_FLOAT_PRECISION);
+#else
+            os.precision (std::numeric_limits<float>::digits10);
+#endif
+            // Format.
+            //
+#if defined (XSD_CXX_TREE_FLOAT_FIXED)
+            os << std::fixed << f;
+#elif defined (XSD_CXX_TREE_FLOAT_SCIENTIFIC)
+            os << std::scientific << f;
+#else
+            os << f;
+#endif
+            r = os.str ();
+          }
+
+          return r;
+        }
+      }
+
+      template <typename C>
+      inline void
+      operator<< (list_stream<C>& ls, float f)
+      {
+        ls.os_ << bits::insert<C> (f);
+      }
+    }
+  }
+}
+
+namespace XERCES_CPP_NAMESPACE
+{
+  inline void
+  operator<< (xercesc::DOMElement& e, float f)
+  {
+    e << xsd::cxx::tree::bits::insert<char> (f);
+  }
+
+  inline void
+  operator<< (xercesc::DOMAttr& a, float f)
+  {
+    a << xsd::cxx::tree::bits::insert<char> (f);
+  }
+}
+
+#endif // XSD_CXX_TREE_SERIALIZATION_FLOAT_HXX
-- 
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