1 files changed, 38 insertions, 0 deletions
diff --git a/runtimes/contrib/xtrace/src/str.h b/runtimes/contrib/xtrace/src/str.h
new file mode 100644
index 000000000..a6d53a535
--- /dev/null
+++ b/runtimes/contrib/xtrace/src/str.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __STR_H__
+#define __STR_H__
+
+#include <ostream>
+#include <sstream>
+
+template <typename Arg> void _str(std::ostream &os, Arg &&arg) { os << std::forward<Arg>(arg); }
+
+template <typename Arg, typename... Args> void _str(std::ostream &os, Arg &&arg, Args &&... args)
+{
+  _str(os, std::forward<Arg>(arg));
+  _str(os, std::forward<Args>(args)...);
+}
+
+template <typename... Args> std::string str(Args &&... args)
+{
+  std::stringstream ss;
+  _str(ss, std::forward<Args>(args)...);
+  return ss.str();
+}
+
+#endif // __STR_H__