Program Listing for File visibility_control.hpp

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// Copyright (c) 2009, Willow Garage, Inc.
// All rights reserved.
//
// Software License Agreement (BSD License 2.0)
//
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// modification, are permitted provided that the following conditions
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//
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//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above
//    copyright notice, this list of conditions and the following
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//    with the distribution.
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//    contributors may be used to endorse or promote products derived
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#ifndef CONTROL_TOOLBOX__VISIBILITY_CONTROL_HPP_
#define CONTROL_TOOLBOX__VISIBILITY_CONTROL_HPP_

// This logic was borrowed (then namespaced) from the examples on the gcc wiki:
//     https://gcc.gnu.org/wiki/Visibility

#if defined _WIN32 || defined __CYGWIN__
#ifdef __GNUC__
#define CONTROL_TOOLBOX_EXPORT __attribute__((dllexport))
#define CONTROL_TOOLBOX_IMPORT __attribute__((dllimport))
#else
#define CONTROL_TOOLBOX_EXPORT __declspec(dllexport)
#define CONTROL_TOOLBOX_IMPORT __declspec(dllimport)
#endif
#ifdef CONTROL_TOOLBOX_BUILDING_LIBRARY
#define CONTROL_TOOLBOX_PUBLIC CONTROL_TOOLBOX_EXPORT
#else
#define CONTROL_TOOLBOX_PUBLIC CONTROL_TOOLBOX_IMPORT
#endif
#define CONTROL_TOOLBOX_PUBLIC_TYPE CONTROL_TOOLBOX_PUBLIC
#define CONTROL_TOOLBOX_LOCAL
#else
#define CONTROL_TOOLBOX_EXPORT __attribute__((visibility("default")))
#define CONTROL_TOOLBOX_IMPORT
#if __GNUC__ >= 4
#define CONTROL_TOOLBOX_PUBLIC __attribute__((visibility("default")))
#define CONTROL_TOOLBOX_LOCAL __attribute__((visibility("hidden")))
#else
#define CONTROL_TOOLBOX_PUBLIC
#define CONTROL_TOOLBOX_LOCAL
#endif
#define CONTROL_TOOLBOX_PUBLIC_TYPE
#endif

#endif  // CONTROL_TOOLBOX__VISIBILITY_CONTROL_HPP_