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      1 // -*- C++ -*-
      2 //===-- parallel_backend.h ------------------------------------------------===//
      3 //
      4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      5 // See https://llvm.org/LICENSE.txt for license information.
      6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #ifndef _PSTL_PARALLEL_BACKEND_H
     11 #define _PSTL_PARALLEL_BACKEND_H
     12 
     13 #if defined(_PSTL_PAR_BACKEND_SERIAL)
     14 #    include "parallel_backend_serial.h"
     15 namespace __pstl
     16 {
     17 namespace __par_backend = __serial_backend;
     18 }
     19 #elif defined(_PSTL_PAR_BACKEND_TBB)
     20 #    include "parallel_backend_tbb.h"
     21 namespace __pstl
     22 {
     23 namespace __par_backend = __tbb_backend;
     24 }
     25 #elif defined(_PSTL_PAR_BACKEND_OPENMP)
     26 #    include "parallel_backend_omp.h"
     27 namespace __pstl
     28 {
     29 namespace __par_backend = __omp_backend;
     30 }
     31 #else
     32 _PSTL_PRAGMA_MESSAGE("Parallel backend was not specified");
     33 #endif
     34 
     35 #endif /* _PSTL_PARALLEL_BACKEND_H */
     36