visibility_control.hpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015, Open Source Robotics Foundation, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * * Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * * Neither the name of the Open Source Robotics Foundation, Inc. nor the
14  * names of its contributors may be used to endorse or promote products
15  * derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  * POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef CLASS_LOADER__VISIBILITY_CONTROL_HPP_
31 #define CLASS_LOADER__VISIBILITY_CONTROL_HPP_
32 
33 // This logic was borrowed (then namespaced) from the examples on the gcc wiki:
34 // https://gcc.gnu.org/wiki/Visibility
35 
36 #if defined _WIN32 || defined __CYGWIN__
37  #ifdef __GNUC__
38  #define CLASS_LOADER_EXPORT __attribute__ ((dllexport))
39  #define CLASS_LOADER_IMPORT __attribute__ ((dllimport))
40  #else
41  #define CLASS_LOADER_EXPORT __declspec(dllexport)
42  #define CLASS_LOADER_IMPORT __declspec(dllimport)
43  #endif
44  #ifdef CLASS_LOADER_BUILDING_DLL
45  #define CLASS_LOADER_PUBLIC CLASS_LOADER_EXPORT
46  #else
47  #define CLASS_LOADER_PUBLIC CLASS_LOADER_IMPORT
48  #endif
49  #define CLASS_LOADER_PUBLIC_TYPE CLASS_LOADER_PUBLIC
50  #define CLASS_LOADER_LOCAL
51 #else
52  #define CLASS_LOADER_EXPORT __attribute__ ((visibility("default")))
53  #define CLASS_LOADER_IMPORT
54  #if __GNUC__ >= 4
55  #define CLASS_LOADER_PUBLIC __attribute__ ((visibility("default")))
56  #define CLASS_LOADER_LOCAL __attribute__ ((visibility("hidden")))
57  #else
58  #define CLASS_LOADER_PUBLIC
59  #define CLASS_LOADER_LOCAL
60  #endif
61  #define CLASS_LOADER_PUBLIC_TYPE
62 #endif
63 
64 // based on wiki.ros.org: http://wiki.ros.org/win_ros/Contributing/Dll%20Exports
65 // Ignore warnings about import/exports when deriving from std classes.
66 // https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4251
67 // https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4275
68 #ifdef _MSC_VER
69  #pragma warning(disable: 4251)
70  #pragma warning(disable: 4275)
71 #endif
72 
73 #endif // CLASS_LOADER__VISIBILITY_CONTROL_HPP_


class_loader
Author(s): Mirza Shah
autogenerated on Sat Feb 8 2020 03:20:57