1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file |
3 | // distributed with this work for additional information |
4 | // regarding copyright ownership. The ASF licenses this file |
5 | // to you under the Apache License, Version 2.0 (the |
6 | // "License"); you may not use this file except in compliance |
7 | // with the License. You may obtain a copy of the License at |
8 | // |
9 | // http://www.apache.org/licenses/LICENSE-2.0 |
10 | // |
11 | // Unless required by applicable law or agreed to in writing, |
12 | // software distributed under the License is distributed on an |
13 | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
14 | // KIND, either express or implied. See the License for the |
15 | // specific language governing permissions and limitations |
16 | // under the License. |
17 | |
18 | #ifndef PARQUET_UTIL_VISIBILITY_H |
19 | #define PARQUET_UTIL_VISIBILITY_H |
20 | |
21 | #if defined(_WIN32) || defined(__CYGWIN__) |
22 | #ifdef _MSC_VER |
23 | #pragma warning(push) |
24 | // Disable warning for STL types usage in DLL interface |
25 | // https://web.archive.org/web/20130317015847/http://connect.microsoft.com/VisualStudio/feedback/details/696593/vc-10-vs-2010-basic-string-exports |
26 | #pragma warning(disable : 4275 4251) |
27 | // Disable diamond inheritance warnings |
28 | #pragma warning(disable : 4250) |
29 | // Disable macro redefinition warnings |
30 | #pragma warning(disable : 4005) |
31 | // Disable extern before exported template warnings |
32 | #pragma warning(disable : 4910) |
33 | #endif |
34 | #define PARQUET_EXPORT __declspec(dllexport) |
35 | #define PARQUET_NO_EXPORT |
36 | #else // Not Windows |
37 | #ifndef PARQUET_EXPORT |
38 | #define PARQUET_EXPORT __attribute__((visibility("default"))) |
39 | #endif |
40 | #ifndef PARQUET_NO_EXPORT |
41 | #define PARQUET_NO_EXPORT __attribute__((visibility("hidden"))) |
42 | #endif |
43 | #endif // Non-Windows |
44 | |
45 | // gcc and clang disagree about how to handle template visibility when you have |
46 | // explicit specializations https://llvm.org/bugs/show_bug.cgi?id=24815 |
47 | |
48 | #if defined(__clang__) |
49 | #define PARQUET_EXTERN_TEMPLATE extern template class PARQUET_EXPORT |
50 | #else |
51 | #define PARQUET_EXTERN_TEMPLATE extern template class |
52 | #endif |
53 | |
54 | // This is a complicated topic, some reading on it: |
55 | // http://www.codesynthesis.com/~boris/blog/2010/01/18/dll-export-cxx-templates/ |
56 | #if defined(_MSC_VER) || defined(__clang__) |
57 | #define PARQUET_TEMPLATE_CLASS_EXPORT |
58 | #define PARQUET_TEMPLATE_EXPORT PARQUET_EXPORT |
59 | #else |
60 | #define PARQUET_TEMPLATE_CLASS_EXPORT PARQUET_EXPORT |
61 | #define PARQUET_TEMPLATE_EXPORT |
62 | #endif |
63 | |
64 | #endif // PARQUET_UTIL_VISIBILITY_H |
65 | |