1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2016 Benoit Steiner <benoit.steiner.goog@gmail.com> 5 // 6 // This Source Code Form is subject to the terms of the Mozilla 7 // Public License v. 2.0. If a copy of the MPL was not distributed 8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 9 10 #ifndef EIGEN_CXX11_THREADPOOL_THREAD_LOCAL_H 11 #define EIGEN_CXX11_THREADPOOL_THREAD_LOCAL_H 12 13 // Try to come up with a portable implementation of thread local variables 14 #if EIGEN_COMP_GNUC && EIGEN_GNUC_AT_MOST(4, 7) 15 #define EIGEN_THREAD_LOCAL static __thread 16 #elif EIGEN_COMP_CLANG 17 #define EIGEN_THREAD_LOCAL static __thread 18 #else 19 #define EIGEN_THREAD_LOCAL static thread_local 20 #endif 21 22 #endif // EIGEN_CXX11_THREADPOOL_THREAD_LOCAL_H 23