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venv/lib/python3.10/site-packages/pyarrow/include/arrow/util/visibility.h

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+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+
+#pragma once
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+// Windows
+
+#  if defined(_MSC_VER)
+#    pragma warning(disable : 4251)
+#  else
+#    pragma GCC diagnostic ignored "-Wattributes"
+#  endif
+
+#  if defined(__cplusplus) && defined(__GNUC__) && !defined(__clang__)
+// Use C++ attribute syntax where possible to avoid GCC parser bug
+// (https://stackoverflow.com/questions/57993818/gcc-how-to-combine-attribute-dllexport-and-nodiscard-in-a-struct-de)
+#    define ARROW_DLLEXPORT [[gnu::dllexport]]
+#    define ARROW_DLLIMPORT [[gnu::dllimport]]
+#  else
+#    define ARROW_DLLEXPORT __declspec(dllexport)
+#    define ARROW_DLLIMPORT __declspec(dllimport)
+#  endif
+
+// _declspec(dllexport) even when #included by a non-arrow source
+#  define ARROW_FORCE_EXPORT ARROW_DLLEXPORT
+
+#  ifdef ARROW_STATIC
+#    define ARROW_EXPORT
+#    define ARROW_FRIEND_EXPORT
+#    define ARROW_TEMPLATE_EXPORT
+#  elif defined(ARROW_EXPORTING)
+#    define ARROW_EXPORT ARROW_DLLEXPORT
+// For some reason [[gnu::dllexport]] doesn't work well with friend declarations
+#    define ARROW_FRIEND_EXPORT __declspec(dllexport)
+#    define ARROW_TEMPLATE_EXPORT ARROW_DLLEXPORT
+#  else
+#    define ARROW_EXPORT ARROW_DLLIMPORT
+#    define ARROW_FRIEND_EXPORT __declspec(dllimport)
+#    define ARROW_TEMPLATE_EXPORT ARROW_DLLIMPORT
+#  endif
+
+#  define ARROW_NO_EXPORT
+
+#else
+
+// Non-Windows
+
+#  if defined(__cplusplus) && (defined(__GNUC__) || defined(__clang__))
+#    ifndef ARROW_EXPORT
+#      define ARROW_EXPORT [[gnu::visibility("default")]]
+#    endif
+#    ifndef ARROW_NO_EXPORT
+#      define ARROW_NO_EXPORT [[gnu::visibility("hidden")]]
+#    endif
+// The C++ language does not have clear rules for how to export explicit template
+// instantiations, and clang/gcc have differing syntax. See
+// https://github.com/llvm/llvm-project/issues/29464 and
+// https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0537r0.html
+#    if defined(__clang__)
+#      define ARROW_TEMPLATE_EXPORT
+#    else
+#      define ARROW_TEMPLATE_EXPORT ARROW_EXPORT
+#    endif
+#  else
+// Not C++, or not gcc/clang
+#    ifndef ARROW_EXPORT
+#      define ARROW_EXPORT
+#    endif
+#    ifndef ARROW_NO_EXPORT
+#      define ARROW_NO_EXPORT
+#    endif
+#    define ARROW_TEMPLATE_EXPORT
+#  endif
+
+#  define ARROW_FRIEND_EXPORT
+
+// [[gnu::visibility("default")]] even when #included by a non-arrow source
+#  define ARROW_FORCE_EXPORT [[gnu::visibility("default")]]
+
+#endif  // Non-Windows