visibility_control.h

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#ifndef NROS_VISIBILITY_H
#define NROS_VISIBILITY_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
// Visibility macros for shared library support
#if defined(_WIN32)
#if defined(NROS_BUILDING_DLL)
#define NROS_PUBLIC __declspec(dllexport)
#elif defined(NROS_USING_DLL)
#define NROS_PUBLIC __declspec(dllimport)
#else
#define NROS_PUBLIC
#endif
#define NROS_LOCAL
#else
#if __GNUC__ >= 4
#define NROS_PUBLIC __attribute__((visibility("default")))
#define NROS_LOCAL __attribute__((visibility("hidden")))
#else
#define NROS_PUBLIC
#define NROS_LOCAL
#endif
#endif
 
// Warn unused result
#if defined(__GNUC__) || defined(__clang__)
#define NROS_WARN_UNUSED __attribute__((warn_unused_result))
#else
#define NROS_WARN_UNUSED
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif // NROS_VISIBILITY_H