thread_local.h

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#ifndef CLHEP_THREAD_LOCAL_H
#define CLHEP_THREAD_LOCAL_H
 
// ======================================================================
//
// Use thread_local when the compiler declares it uses the C++11 standard
//
// ======================================================================
 
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 7) || __clang__ || WIN32
  #define CLHEP_THREAD_LOCAL thread_local
#else
  #define CLHEP_THREAD_LOCAL
#endif
 
#endif