1 files changed, 31 insertions, 0 deletions
diff --git a/interface/opt_io.hpp b/interface/opt_io.hpp
new file mode 100644
index 0000000..f7b68d8
--- /dev/null
+++ b/interface/opt_io.hpp
@@ -0,0 +1,31 @@
+#ifndef OPT_IO
+#define OPT_IO
+#include <iostream>
+#include <cmath>
+#include "core/fitter.hpp"
+
+
+namespace std
+{
+  template <typename Ty,typename Tx>
+  std::ostream& operator<<(std::ostream& os,const opt_utilities::data<Ty,Tx>& d)
+  {
+    os<<d.get_x()<<"("<<-std::abs(d.get_x_lower_err())<<",+"<<std::abs(d.get_x_upper_err())<<") "<<d.get_y()<<"("<<-std::abs(d.get_y_lower_err())<<",+"<<std::abs(d.get_y_upper_err())<<") ";
+    return os;
+  }
+  
+  template <typename Ty,typename Tx>
+  std::ostream& operator<<(std::ostream& os,const opt_utilities::data_set<Ty,Tx>& ds)
+  {
+    os<<"data set with size of "<<ds.size()<<"\n"
+      <<"[\n";
+    int s=5>ds.size()?ds.size():5;
+    for(int i=0;i<s;++i)
+      {
+	os<<ds.get_data(i)<<"\n";
+      }
+    os<<"]";
+    return os;
+  }
+}
+#endif