diff --git a/algo/ca/core/data/CaDataManager.h b/algo/ca/core/data/CaDataManager.h
index a95b7383f8e667612b5092cb045d4663e9144a43..ccf124a53d8159438865043f3a027fec8b298789 100644
--- a/algo/ca/core/data/CaDataManager.h
+++ b/algo/ca/core/data/CaDataManager.h
@@ -7,8 +7,7 @@
 /// \since  05.08.2022
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaDataManager_h
-#define CaDataManager_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include "CaConstants.h"
 #include "CaInputData.h"
@@ -159,4 +158,3 @@ namespace cbm::algo::ca
   }
 }  // namespace cbm::algo::ca
 
-#endif  // CaDataManager_h
diff --git a/algo/ca/core/data/CaGrid.h b/algo/ca/core/data/CaGrid.h
index 01f193c1da9a5e667f1996fe6def8f31816b16a3..eca4cd70b64e0fbfba6d361248dfca51f688b5ef 100644
--- a/algo/ca/core/data/CaGrid.h
+++ b/algo/ca/core/data/CaGrid.h
@@ -8,8 +8,7 @@
 /// This code is based on the code of the ALICE HLT Project
 ///
 
-#ifndef CaGrid_h
-#define CaGrid_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include "CaGridEntry.h"
 #include "CaHit.h"
@@ -193,4 +192,3 @@ namespace cbm::algo::ca
 
 }  // namespace cbm::algo::ca
 
-#endif
diff --git a/algo/ca/core/data/CaGridArea.h b/algo/ca/core/data/CaGridArea.h
index 5ec34be08fa490ed9ee533e3c68392b9d678d260..a0c2efca09a5a8061d6b56a1d0ef1f8306bcd479 100644
--- a/algo/ca/core/data/CaGridArea.h
+++ b/algo/ca/core/data/CaGridArea.h
@@ -4,8 +4,7 @@
 
 /// \file CaGrid.h
 
-#ifndef CaGridArea_H
-#define CaGridArea_H 1
+#pragma once  // include this header only once per compilation unit
 
 #include "CaGrid.h"
 #include "CaHit.h"
@@ -114,6 +113,4 @@ namespace cbm::algo::ca
     fAreaCurrentBinY = 0;
   }
 
-
 }  // namespace cbm::algo::ca
-#endif
diff --git a/algo/ca/core/data/CaGridEntry.h b/algo/ca/core/data/CaGridEntry.h
index 5fa81820fbc8ee0d65ce08cd9d0ab079ba06149b..67502b1c6c619d6392f5e810e0803beaf38cc2a5 100644
--- a/algo/ca/core/data/CaGridEntry.h
+++ b/algo/ca/core/data/CaGridEntry.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Valentina Akishina, Igor Kulakov [committer], Maksym Zyzak */
 
-#ifndef CaGridEntry_h
-#define CaGridEntry_h
+#pragma once  // include this header only once per compilation unit
 
 #include "CaConstants.h"
 #include "CaHit.h"
@@ -58,4 +57,3 @@ namespace cbm::algo::ca
 
 }  // namespace cbm::algo::ca
 
-#endif
diff --git a/algo/ca/core/data/CaHit.h b/algo/ca/core/data/CaHit.h
index ff7fb114ca61db9526320285c745ffd9ec207888..6273d38a0db1a7d5676c758b2b16f1ace773474c 100644
--- a/algo/ca/core/data/CaHit.h
+++ b/algo/ca/core/data/CaHit.h
@@ -6,8 +6,7 @@
 /// \brief ca::Hit class describes a generic hit for the CA tracker
 /// \date 2007-2023
 
-#ifndef CaHit_h
-#define CaHit_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 
@@ -20,7 +19,7 @@ namespace cbm::algo::ca
 
   /// \brief ca::Hit class describes a generic hit for the CA tracker
   ///
-  struct Hit {
+  class Hit {
     friend class boost::serialization::access;
 
   public:
@@ -86,5 +85,3 @@ namespace cbm::algo::ca
   };
 
 }  // namespace cbm::algo::ca
-
-#endif
diff --git a/algo/ca/core/data/CaInputData.h b/algo/ca/core/data/CaInputData.h
index 22ddec7f0a360a6f8f21567f3fe6379f542578da..2172ad8b4346896fd344f86657a19dd162dd4fe4 100644
--- a/algo/ca/core/data/CaInputData.h
+++ b/algo/ca/core/data/CaInputData.h
@@ -7,8 +7,7 @@
 /// \since  08.08.2022
 /// \author Sergei Zharko <s.zharko@gsi.de>
 
-#ifndef CaInputData_h
-#define CaInputData_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 #include <boost/serialization/array.hpp>
@@ -125,5 +124,3 @@ namespace cbm::algo::ca
   }
 
 }  // namespace cbm::algo::ca
-
-#endif  // InputData_h
diff --git a/algo/ca/core/data/CaTrack.h b/algo/ca/core/data/CaTrack.h
index 37f919c345fb7550a9c397f88ab614d782bc6bea..647f7f18fad7c956aaacd01115dd0399c88ef0f0 100644
--- a/algo/ca/core/data/CaTrack.h
+++ b/algo/ca/core/data/CaTrack.h
@@ -7,8 +7,7 @@
 /// \since  02.06.2022
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaTrack_h
-#define CaTrack_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 
@@ -48,5 +47,3 @@ namespace cbm::algo::ca
   };
 
 }  // namespace cbm::algo::ca
-
-#endif  // CaTrack_h
diff --git a/algo/ca/core/data/CaTrackParam.h b/algo/ca/core/data/CaTrackParam.h
index 1902b044af7027a14ce1ec184f0f9d4810ffb5a6..eb2b4e33b2d6e213447ca8545f1e49e4808ea23e 100644
--- a/algo/ca/core/data/CaTrackParam.h
+++ b/algo/ca/core/data/CaTrackParam.h
@@ -8,8 +8,7 @@
 /// \since  02.06.2022
 /// \author Sergey Gorbunov
 
-#ifndef CaTrackParam_h
-#define CaTrackParam_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 
@@ -720,4 +719,3 @@ namespace cbm::algo::ca
 
 }  // namespace cbm::algo::ca
 
-#endif  // CaTrackParam_h
diff --git a/algo/ca/core/pars/CaConfigReader.h b/algo/ca/core/pars/CaConfigReader.h
index 2bbba170d216886a6e2f26e8dba01570366db03d..7f3006eb4be9abbb5b0134e5cb7819e5edea837a 100644
--- a/algo/ca/core/pars/CaConfigReader.h
+++ b/algo/ca/core/pars/CaConfigReader.h
@@ -7,8 +7,7 @@
 /// \author S.Zharko <s.zharko@gsi.de>
 /// \since  18.07.2022
 
-#ifndef CaConfigRW_h
-#define CaConfigRW_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <string>
 #include <unordered_map>
@@ -101,4 +100,3 @@ namespace cbm::algo::ca
     YAML::Node fUserConfigNode {YAML::NodeType::Undefined};  ///< User configuration node
   };
 }  // namespace cbm::algo::ca
-#endif  // CaConfigRW_h
diff --git a/algo/ca/core/pars/CaConstants.h b/algo/ca/core/pars/CaConstants.h
index 2c1b7f8650089b7c83814bb34ba2a899f3e74144..cff4ad0baf9ab06bced23723975976e77643f9cf 100644
--- a/algo/ca/core/pars/CaConstants.h
+++ b/algo/ca/core/pars/CaConstants.h
@@ -7,8 +7,7 @@
 /// \since  02.06.2022
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaConstants_h
-#define CaConstants_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <limits>
 
@@ -246,5 +245,3 @@ namespace cbm::algo::ca::constants
 
 
 }  // namespace cbm::algo::ca::constants
-
-#endif  // CaConstants_h
diff --git a/algo/ca/core/pars/CaField.h b/algo/ca/core/pars/CaField.h
index 0e56f96e03e1e102b1ea7f07b2de88a98613d76a..39e93a59d575e78ce7145be064c608c6dd2b5e40 100644
--- a/algo/ca/core/pars/CaField.h
+++ b/algo/ca/core/pars/CaField.h
@@ -2,8 +2,8 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Sergey Gorbunov [committer], Igor Kulakov, Maksym Zyzak, Sergei Zharko */
 
-#ifndef CaField_h
-#define CaField_h 1
+#pragma once  // include this header only once per compilation unit
+
 
 #include <boost/serialization/access.hpp>
 
@@ -229,4 +229,3 @@ namespace cbm::algo::ca
   } _fvecalignment;
 
 }  // namespace cbm::algo::ca
-#endif
diff --git a/algo/ca/core/pars/CaInitManager.h b/algo/ca/core/pars/CaInitManager.h
index 1b836d09fa0e48cf7edf8e6e9e8259cc64ab4f57..b75ac7cdc06f59f2ea33d1ad89f96a900af75d97 100644
--- a/algo/ca/core/pars/CaInitManager.h
+++ b/algo/ca/core/pars/CaInitManager.h
@@ -7,8 +7,7 @@
 /// \since  24.12.2021
 /// \author Sergei Zharko <s.zharko@gsi.de>
 
-#ifndef CaInitManager_h
-#define CaInitManager_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <array>
 #include <bitset>
@@ -305,5 +304,3 @@ namespace cbm::algo::ca
     std::string fConfigOutputName = "";  ///< name for the output configuration file
   };
 }  // namespace cbm::algo::ca
-
-#endif
diff --git a/algo/ca/core/pars/CaIteration.h b/algo/ca/core/pars/CaIteration.h
index 5198ecff6f9e4b7a64ae4ae2e0f45d3f98ee1bd7..f3b06c3563f449d63dc4eba4a63917b795831fd6 100644
--- a/algo/ca/core/pars/CaIteration.h
+++ b/algo/ca/core/pars/CaIteration.h
@@ -9,8 +9,7 @@
  * @author S.Zharko <s.zharko@gsi.de>
  ***************************************************************************************************/
 
-#ifndef CaIteration_h
-#define CaIteration_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 #include <boost/serialization/string.hpp>
@@ -280,6 +279,3 @@ namespace cbm::algo::ca
     }
   };
 }  // namespace cbm::algo::ca
-
-
-#endif  // L1CAIteration_h
diff --git a/algo/ca/core/pars/CaMaterialMap.h b/algo/ca/core/pars/CaMaterialMap.h
index e12c6a2d8dc5c86ba5950af2423ba6670d499400..af77e37874485c120db324dd09568c267273013b 100644
--- a/algo/ca/core/pars/CaMaterialMap.h
+++ b/algo/ca/core/pars/CaMaterialMap.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Igor Kulakov, Sergey Gorbunov [committer], Andrey Lebedev, Sergei Zharko */
 
-#ifndef CaMaterialMap_h
-#define CaMaterialMap_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/vector.hpp>
 
@@ -130,4 +129,3 @@ namespace cbm::algo::ca
 
 }  // namespace cbm::algo::ca
 
-#endif
diff --git a/algo/ca/core/pars/CaParameters.h b/algo/ca/core/pars/CaParameters.h
index f4faf7d6ec2520eb46f6778f7d1c330e6a4f7ac5..01dfb21c6bbb444fda97563479044bf25021b22b 100644
--- a/algo/ca/core/pars/CaParameters.h
+++ b/algo/ca/core/pars/CaParameters.h
@@ -7,8 +7,7 @@
 /// @since 19.12.2021
 /// @author S.Zharko <s.zharko@gsi.de>
 
-#ifndef L1Parameters_h
-#define L1Parameters_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/array.hpp>
 #include <boost/serialization/utility.hpp>
@@ -341,4 +340,3 @@ namespace cbm::algo::ca
   };
 }  // namespace cbm::algo::ca
 
-#endif  // L1Parameters_h
diff --git a/algo/ca/core/pars/CaSearchWindow.h b/algo/ca/core/pars/CaSearchWindow.h
index 3fe43fcb6d8ebba553b3c36cdca6197055616c4c..ea7e73c18a846f25df77b3ce4c07bfd0d87f8f6b 100644
--- a/algo/ca/core/pars/CaSearchWindow.h
+++ b/algo/ca/core/pars/CaSearchWindow.h
@@ -7,8 +7,7 @@
 /// \date   08.11.2022
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaSearchWindow_h
-#define CaSearchWindow_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/array.hpp>
 #include <boost/serialization/string.hpp>
@@ -174,5 +173,3 @@ namespace cbm::algo::ca
     }
   };
 }  // namespace cbm::algo::ca
-
-#endif  // L1SearchWindow_h
diff --git a/algo/ca/core/pars/CaStation.h b/algo/ca/core/pars/CaStation.h
index 6f5bdc134cc194a95582b9e78d7aad93e1060f09..3fb76957e9a159dd00b86c5bbc8aa9fa7ba5318f 100644
--- a/algo/ca/core/pars/CaStation.h
+++ b/algo/ca/core/pars/CaStation.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Sergey Gorbunov [committer], Igor Kulakov, Sergei Zharko */
 
-#ifndef CaStation_h
-#define CaStation_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <string>
 
@@ -87,5 +86,3 @@ namespace cbm::algo::ca
   } _fvecalignment;
 
 }  // namespace cbm::algo::ca
-
-#endif  // CaStation_h
diff --git a/algo/ca/core/pars/CaStationInitializer.h b/algo/ca/core/pars/CaStationInitializer.h
index 221438ed0eee281e5a32445d792297a0a4d51ab9..0dc5a80f698da7905d0fa95978bf191e3a394ed9 100644
--- a/algo/ca/core/pars/CaStationInitializer.h
+++ b/algo/ca/core/pars/CaStationInitializer.h
@@ -7,8 +7,7 @@
 /// \since  18.12.2021
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaStationInitializer_h
-#define CaStationInitializer_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <bitset>
 #include <functional>
@@ -216,5 +215,3 @@ namespace cbm::algo::ca
   /// swap function for two StationInitializer objects, expected to be used instead of std::swap
   inline void swap(StationInitializer& a, StationInitializer& b) noexcept { a.Swap(b); }
 }  // namespace cbm::algo::ca
-
-#endif  // CaStationInitializer_h
diff --git a/algo/ca/core/utils/CaDefines.h b/algo/ca/core/utils/CaDefines.h
index d98b0fc592e5d1fc6a01676287b61c7197d4c423..ae101e651f80a85f94ae0543357d13e90c1d4ce7 100644
--- a/algo/ca/core/utils/CaDefines.h
+++ b/algo/ca/core/utils/CaDefines.h
@@ -6,8 +6,7 @@
 /// \brief Macros for the CA tracking algorithm
 /// \details Try to minimize the amount of macros. Try to call this header only from cxx files.
 
-#ifndef CaDefines_h
-#define CaDefines_h
+#pragma once  // include this header only once per compilation unit
 
 #include <iostream>
 
@@ -27,6 +26,3 @@
 #define CBMCA_DEBUG_ASSERT(v)
 
 #endif  // CBMCA_DEBUG_MODE
-
-
-#endif  // CaDefines_h
diff --git a/algo/ca/core/utils/CaEnumArray.h b/algo/ca/core/utils/CaEnumArray.h
index 25ec11a725d0a58c44c927ab47452377fceb56ec..bcf5a270e6b916f668d156460775f281cb2531a5 100644
--- a/algo/ca/core/utils/CaEnumArray.h
+++ b/algo/ca/core/utils/CaEnumArray.h
@@ -7,8 +7,7 @@
 /// @since  02.05.2023
 /// @author Sergei Zharko <s.zharko@gsi.de>
 
-#ifndef CaEnumArray_h
-#define CaEnumArray_h 1
+#pragma once  // include this header only once per compilation unit
 
 #include <array>
 
@@ -49,5 +48,3 @@ namespace cbm::algo::ca
     operator Arr&() const { return *this; }
   };
 }  // namespace cbm::algo::ca
-
-#endif  // L1EArray_h
diff --git a/algo/ca/core/utils/CaMonitor.h b/algo/ca/core/utils/CaMonitor.h
index 39d3209b75081d34725e89e9173ad3697863a532..5ba1711a4071a8375ca6b12d0ae1b5e0a51ce16e 100644
--- a/algo/ca/core/utils/CaMonitor.h
+++ b/algo/ca/core/utils/CaMonitor.h
@@ -7,8 +7,8 @@
 /// @since  25.08.2023
 /// @author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaMonitor_h
-#define CaMonitor_h 1
+#pragma once  // include this header only once per compilation unit
+
 
 #include <iomanip>
 #include <sstream>
@@ -110,5 +110,3 @@ namespace cbm::algo::ca
     return msg.str();
   }
 }  // namespace cbm::algo::ca
-
-#endif  // CaMonitor_h
diff --git a/algo/ca/core/utils/CaObjectInitController.h b/algo/ca/core/utils/CaObjectInitController.h
index 31a88feb1b9ab78bd21c81ebf980e3d210de83da..45b5f7db3d4f2260872bb63fea3291ade8488dac 100644
--- a/algo/ca/core/utils/CaObjectInitController.h
+++ b/algo/ca/core/utils/CaObjectInitController.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Sergey Gorbunov, Sergei Zharko [committer] */
 
-#ifndef CaObjectInitController_h
-#define CaObjectInitController_h 1
+#pragma once  // include this header only once per compilation unit
 
 /// @file   CaObjectInitController.h
 /// @author Sergei Zharko
@@ -97,5 +96,3 @@ namespace cbm::algo::ca
   }
 
 }  // namespace cbm::algo::ca
-
-#endif  // CaObjectInitController_h
diff --git a/algo/ca/core/utils/CaSimd.h b/algo/ca/core/utils/CaSimd.h
index 4c5406445d1067be6884bfca8f58ee76e7625096..06f4017fdc1a623ec9ee4bcf61c073110f9f0c58 100644
--- a/algo/ca/core/utils/CaSimd.h
+++ b/algo/ca/core/utils/CaSimd.h
@@ -2,10 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Sergey Gorbunov [committer]*/
 
-#ifndef Ca_CaSimd_H
-#define Ca_CaSimd_H 1
+#pragma once  // include this header only once per compilation unit
 
 #include "CaSimdVc.h"
 //#include "CaSimdPseudo.h"
-
-#endif
diff --git a/algo/ca/core/utils/CaSimdPseudo.h b/algo/ca/core/utils/CaSimdPseudo.h
index 9bbd745d58ebc7dd5f89e67a38b984c17acfe39e..5bd20718e080cdc5ad5feae76e39ee9d2d85a122 100644
--- a/algo/ca/core/utils/CaSimdPseudo.h
+++ b/algo/ca/core/utils/CaSimdPseudo.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Igor Kulakov [committer] */
 
-#ifndef Ca_CaSimdPseudo_H
-#define Ca_CaSimdPseudo_H 1
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 
@@ -279,5 +278,3 @@ namespace cbm::algo::ca
 #define _fvecalignment __attribute__((aligned(fvec::size() * sizeof(fscal))))
 
 }  // namespace cbm::algo::ca
-
-#endif
diff --git a/algo/ca/core/utils/CaSimdVc.h b/algo/ca/core/utils/CaSimdVc.h
index f8b22b5d1cdafe63a7a9ec68b31766f1232fd5bc..656de918e833101f2b73d868a0ed8f3c6d960eb3 100644
--- a/algo/ca/core/utils/CaSimdVc.h
+++ b/algo/ca/core/utils/CaSimdVc.h
@@ -2,8 +2,7 @@
    SPDX-License-Identifier: GPL-3.0-only
    Authors: Igor Kulakov [committer], Maksym Zyzak */
 
-#ifndef Ca_CaSimdVc_H
-#define Ca_CaSimdVc_H
+#pragma once  // include this header only once per compilation unit
 
 #include <boost/serialization/access.hpp>
 #include <boost/serialization/array.hpp>
@@ -53,6 +52,3 @@ namespace boost::serialization
     split_free(ar, vect, version);
   }
 }  // namespace boost::serialization
-
-
-#endif
diff --git a/algo/ca/core/utils/CaUtils.h b/algo/ca/core/utils/CaUtils.h
index a3e7cc079436344151428929fafdb01a4ab5544f..6a0fa0ee70977c912caf1d70c6646ce7cdafb7ca 100644
--- a/algo/ca/core/utils/CaUtils.h
+++ b/algo/ca/core/utils/CaUtils.h
@@ -7,8 +7,8 @@
 /// \since  02.06.2022
 /// \author S.Zharko <s.zharko@gsi.de>
 
-#ifndef CaUtils_h
-#define CaUtils_h 1
+#pragma once  // include this header only once per compilation unit
+
 
 #include <sstream>
 
@@ -37,24 +37,13 @@ namespace cbm::algo::ca::utils
   }
 
   /// tell the CPU that the bool condition is likely to be true
-  __always_inline bool IsLikely(bool b)
-  {
 #if defined(__GNUC__) && __GNUC__ - 0 >= 3
-    return __builtin_expect(!!(b), 1);
+  __attribute__((always_inline)) inline bool IsLikely(bool b) { return __builtin_expect(!!(b), 1); }
+  __attribute__((always_inline)) inline bool IsUnlikely(bool b) { return __builtin_expect(!!(b), 0); }
 #else
-    return b;
+  inline bool IsLikely(bool b) { return b; }
+  inline bool IsUnlikely(bool b) { return b; }
 #endif
-  }
-
-  /// tell the CPU that the bool condition is unlikely to be true
-  __always_inline bool IsUnlikely(bool b)
-  {
-#if defined(__GNUC__) && __GNUC__ - 0 >= 3
-    return __builtin_expect(!!(b), 0);
-#else
-    return b;
-#endif
-  }
 
   /// \brief Checks whether a variable of a particular type defined
   /// \param val Value to be checked
@@ -137,6 +126,3 @@ namespace cbm::algo::ca::utils
     }
   };
 }  // namespace cbm::algo::ca::utils
-
-
-#endif  // CaUtils_h
diff --git a/algo/ca/core/utils/CaVector.h b/algo/ca/core/utils/CaVector.h
index 8fa8245a6b0e3ef2e39d58704b04531dc66029b7..5630dfbdf46973e9dd39b020e86f5bb5a9d566a1 100644
--- a/algo/ca/core/utils/CaVector.h
+++ b/algo/ca/core/utils/CaVector.h
@@ -6,8 +6,7 @@
 /// \author Sergey Gorbunov
 /// \date 2021-06-16
 
-#ifndef Ca_CaVector_H
-#define Ca_CaVector_H
+#pragma once  // include this header only once per compilation unit
 
 
 #ifndef FAST_CODE
@@ -293,4 +292,3 @@ namespace cbm::algo::ca
   class Vector<bool> {
   };
 }  // namespace cbm::algo::ca
-#endif