From 2615896faa646e5830abf2c269150e1165c66515 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Fri, 18 Dec 2020 18:48:46 +0300
Subject: Switch to build2

---
 libxsd/libxsd/cxx/tree/parsing/float.hxx | 92 ++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 libxsd/libxsd/cxx/tree/parsing/float.hxx

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

diff --git a/libxsd/libxsd/cxx/tree/parsing/float.hxx b/libxsd/libxsd/cxx/tree/parsing/float.hxx
new file mode 100644
index 0000000..d0187a3
--- /dev/null
+++ b/libxsd/libxsd/cxx/tree/parsing/float.hxx
@@ -0,0 +1,92 @@
+// file      : libxsd/cxx/tree/parsing/float.hxx
+// license   : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef LIBXSD_CXX_TREE_PARSING_FLOAT_HXX
+#define LIBXSD_CXX_TREE_PARSING_FLOAT_HXX
+
+#include <limits>
+#include <locale>
+
+#include <libxsd/cxx/ro-string.hxx>
+#include <libxsd/cxx/zc-istream.hxx>
+
+#include <libxsd/cxx/xml/string.hxx> // xml::transcode
+
+#include <libxsd/cxx/tree/text.hxx>  // text_content
+#include <libxsd/cxx/tree/bits/literals.hxx>
+
+namespace xsd
+{
+  namespace cxx
+  {
+    namespace tree
+    {
+      template <typename C>
+      struct traits<float, C, schema_type::other>
+      {
+        typedef float type;
+
+        static type
+        create (const xercesc::DOMElement& e, flags f, container* c);
+
+        static type
+        create (const xercesc::DOMAttr& a, flags f, container* c);
+
+        static type
+        create (const std::basic_string<C>& s,
+                const xercesc::DOMElement*,
+                flags,
+                container*);
+      };
+
+      template <typename C>
+      float traits<float, C, schema_type::other>::
+      create (const xercesc::DOMElement& e, flags f, container* c)
+      {
+        return create (tree::text_content<C> (e), 0, f, c);
+      }
+
+      template <typename C>
+      float traits<float, C, schema_type::other>::
+      create (const xercesc::DOMAttr& a, flags f, container* c)
+      {
+        return create (xml::transcode<C> (a.getValue ()), 0, f, c);
+      }
+
+      template <typename C>
+      float traits<float, C, schema_type::other>::
+      create (const std::basic_string<C>& s,
+              const xercesc::DOMElement*,
+              flags,
+              container*)
+      {
+        // This type cannot have whitespaces in its values. As result we
+        // don't need to waste time collapsing whitespaces. All we need to
+        // do is trim the string representation which can be done without
+        // copying.
+        //
+        ro_string<C> tmp (s);
+        trim (tmp);
+
+        if (tmp == bits::positive_inf<C> ())
+          return std::numeric_limits<float>::infinity ();
+
+        if (tmp == bits::negative_inf<C> ())
+          return -std::numeric_limits<float>::infinity ();
+
+        if (tmp == bits::nan<C> ())
+          return std::numeric_limits<float>::quiet_NaN ();
+
+        zc_istream<C> is (tmp);
+        is.imbue (std::locale::classic ());
+
+        type t;
+        is >> t;
+
+        return t;
+      }
+    }
+  }
+}
+
+#endif // LIBXSD_CXX_TREE_PARSING_FLOAT_HXX
-- 
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