1 files changed, 32 insertions, 0 deletions
diff --git a/libstudxml/value-traits.txx b/libstudxml/value-traits.txx
new file mode 100644
index 0000000..0e4d4df
--- /dev/null
+++ b/libstudxml/value-traits.txx
@@ -0,0 +1,32 @@
+// file      : libstudxml/value-traits.txx
+// copyright : Copyright (c) 2013-2017 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#include <sstream>
+
+#include <libstudxml/parser.hxx>
+#include <libstudxml/serializer.hxx>
+
+namespace xml
+{
+  template <typename T>
+  T default_value_traits<T>::
+  parse (std::string s, const parser& p)
+  {
+    T r;
+    std::istringstream is (s);
+    if (!(is >> r && is.eof ()) )
+      throw parsing (p, "invalid value '" + s + "'");
+    return r;
+  }
+
+  template <typename T>
+  std::string default_value_traits<T>::
+  serialize (const T& v, const serializer& s)
+  {
+    std::ostringstream os;
+    if (!(os << v))
+      throw serialization (s, "invalid value");
+    return os.str ();
+  }
+}