| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Define macros to indicate C++ standard / platform / etc we use. |
| |
| #ifndef LIBTEXTCLASSIFIER_UTIL_BASE_CONFIG_H_ |
| #define LIBTEXTCLASSIFIER_UTIL_BASE_CONFIG_H_ |
| |
| namespace libtextclassifier2 { |
| |
| // Define LANG_CXX11 to 1 if current compiler supports C++11. |
| // |
| // GXX_EXPERIMENTAL_CXX0X is defined by gcc and clang up to at least |
| // gcc-4.7 and clang-3.1 (2011-12-13). __cplusplus was defined to 1 |
| // in gcc before 4.7 (Crosstool 16) and clang before 3.1, but is |
| // defined according to the language version in effect thereafter. |
| // Microsoft Visual Studio 14 (2015) sets __cplusplus==199711 despite |
| // reasonably good C++11 support, so we set LANG_CXX for it and |
| // newer versions (_MSC_VER >= 1900). |
| #if (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L || \ |
| (defined(_MSC_VER) && _MSC_VER >= 1900)) |
| // Define this to 1 if the code is compiled in C++11 mode; leave it |
| // undefined otherwise. Do NOT define it to 0 -- that causes |
| // '#ifdef LANG_CXX11' to behave differently from '#if LANG_CXX11'. |
| #define LANG_CXX11 1 |
| #endif |
| |
| } // namespace libtextclassifier2 |
| |
| #endif // LIBTEXTCLASSIFIER_UTIL_BASE_CONFIG_H_ |