1 /* Copyright (C) 2020 IBM Corp.
2  * This program is Licensed under the Apache License, Version 2.0
3  * (the "License"); you may not use this file except in compliance
4  * with the License. You may obtain a copy of the License at
5  *   http://www.apache.org/licenses/LICENSE-2.0
6  * Unless required by applicable law or agreed to in writing, software
7  * distributed under the License is distributed on an "AS IS" BASIS,
8  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
9  * See the License for the specific language governing permissions and
10  * limitations under the License. See accompanying LICENSE file.
11  */
12 
13 #ifndef HELIB_APIATTRIBUTES_H
14 #define HELIB_APIATTRIBUTES_H
15 
16 /**
17  * @file api_attributes.h
18  * @brief Contains pre-processor macros
19  **/
20 
21 namespace helib {
22 
23 #ifndef UNUSED
24 #if __clang__ || __GNUC__
25 /**
26  * @brief Mark a parameter or function as not used.
27  * This suppresses the -Wunused related warnings.
28  **/
29 #define UNUSED __attribute__((unused))
30 #else
31 #define UNUSED
32 #endif
33 #endif
34 
35 } // namespace helib
36 
37 #endif // ifndef HELIB_APIATTRIBUTES_H
38