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44 lines
1.7 KiB
44 lines
1.7 KiB
4 months ago
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Define macros to indicate C++ standard / platform / etc we use.
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#ifndef LIBTEXTCLASSIFIER_UTILS_BASE_CONFIG_H_
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#define LIBTEXTCLASSIFIER_UTILS_BASE_CONFIG_H_
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namespace libtextclassifier3 {
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// Define LANG_CXX11 to 1 if current compiler supports C++11.
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//
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// GXX_EXPERIMENTAL_CXX0X is defined by gcc and clang up to at least
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// gcc-4.7 and clang-3.1 (2011-12-13). __cplusplus was defined to 1
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// in gcc before 4.7 (Crosstool 16) and clang before 3.1, but is
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// defined according to the language version in effect thereafter.
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// Microsoft Visual Studio 14 (2015) sets __cplusplus==199711 despite
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// reasonably good C++11 support, so we set LANG_CXX for it and
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// newer versions (_MSC_VER >= 1900).
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#if (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L || \
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(defined(_MSC_VER) && _MSC_VER >= 1900))
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// Define this to 1 if the code is compiled in C++11 mode; leave it
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// undefined otherwise. Do NOT define it to 0 -- that causes
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// '#ifdef LANG_CXX11' to behave differently from '#if LANG_CXX11'.
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#define LANG_CXX11 1
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#endif
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} // namespace libtextclassifier3
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#endif // LIBTEXTCLASSIFIER_UTILS_BASE_CONFIG_H_
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