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diff --git a/src/hh_root.h b/src/hh_root.h
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+/*
+Copyright 2016 Ian Jauslin
+
+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.
+*/
+
+/*
+  wrappers for the functions used to find the desired roots
+*/
+
+#ifndef HH_ROOT_H
+#define HH_ROOT_H
+
+#include "types.h"
+#include <libinum.h>
+
+// the arguments for the integration wrapper
+typedef struct args_integration{
+  array_mpfr abcissa;
+  array_mpfr weights;
+  hh_params params;
+} args_integration;
+
+// wrapper for the integration function, used for the Newton scheme
+int integration_wrapper(mpfr_t* out, mpfr_t in, void* extra_args);
+// wrapper for the derivative of the integration function, used for the Newton scheme
+int d_integration_wrapper(mpfr_t* out, mpfr_t in, void* extra_args);
+
+#endif