CheckRootVersion.cxx

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 
 
 
//
// includes
//
 
#include <RootCoreUtils/CheckRootVersion.h>
 
#include <cstdlib>
#include <iostream>
#include <atomic>
#include <TROOT.h>
#include <RootCoreUtils/Assert.h>
 
//
// method implementations
//
 
namespace RCU
{
  namespace
  {
    std::atomic<bool> checked = false;
  }
 
  void check_root_version ()
  {
    if (checked)
      return;
    if (gROOT->GetVersionCode() != Int_t(ROOT_VERSION_CODE))
    {
      std::cout
    << "root version used is not compatible with the one used for\n"
    << "compilation.  please load either the correct root version, or\n"
    << "recompile with the new version\n\n"
    << "alternatively deactivate this check using:\n"
    << "#include <RootCoreUtils/CheckRootVersion.hh>\n"
    << "  RCU::disable_root_version_check()\n"
    << std::flush;
      std::abort ();
    }
    checked = true;
  }
 
 
 
  void disable_root_version_check ()
  {
    checked = true;
  }
}