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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 // Various portability macros, type definitions, and inline functions.
     18 
     19 #ifndef LIBTEXTCLASSIFIER_UTILS_BASE_PORT_H_
     20 #define LIBTEXTCLASSIFIER_UTILS_BASE_PORT_H_
     21 
     22 namespace libtextclassifier3 {
     23 
     24 #if defined(__GNUC__) && \
     25     (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
     26 
     27 // For functions we want to force inline.
     28 // Introduced in gcc 3.1.
     29 #define TC3_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))
     30 
     31 // For functions we don't want to inline, e.g., to keep code size small.
     32 #define TC3_ATTRIBUTE_NOINLINE __attribute__((noinline))
     33 
     34 #elif defined(_MSC_VER)
     35 #define TC3_ATTRIBUTE_ALWAYS_INLINE __forceinline
     36 #else
     37 
     38 // Other compilers will have to figure it out for themselves.
     39 #define TC3_ATTRIBUTE_ALWAYS_INLINE
     40 #define TC3_ATTRIBUTE_NOINLINE
     41 #endif
     42 
     43 }  // namespace libtextclassifier3
     44 
     45 #endif  // LIBTEXTCLASSIFIER_UTILS_BASE_PORT_H_
     46