1 /*
2  * Copyright 2021 Google LLC
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #define RETURN_IF_ERROR(expr, msg)                                             \
20     do                                                                         \
21     {                                                                          \
22         int _ret = (expr);                                                     \
23         if (_ret < 0)                                                          \
24         {                                                                      \
25             std::perror(msg);                                                  \
26             return _ret;                                                       \
27         }                                                                      \
28     } while (0)
29