visibility_control.hpp
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1 /*
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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, Steven! Ragnarök
autogenerated on Mon Feb 28 2022 22:02:03