util/base/port.h

/*
 * 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.
 */

// Various portability macros, type definitions, and inline functions.

#ifndef LIBTEXTCLASSIFIER_UTIL_BASE_PORT_H_
#define LIBTEXTCLASSIFIER_UTIL_BASE_PORT_H_

namespace libtextclassifier {

#if defined(__GNUC__) && \
    (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))

// For functions we want to force inline.
// Introduced in gcc 3.1.
#define TC_ATTRIBUTE_ALWAYS_INLINE __attribute__((always_inline))

// For functions we don't want to inline, e.g., to keep code size small.
#define TC_ATTRIBUTE_NOINLINE __attribute__((noinline))

#elif defined(_MSC_VER)
#define TC_ATTRIBUTE_ALWAYS_INLINE __forceinline
#else

// Other compilers will have to figure it out for themselves.
#define TC_ATTRIBUTE_ALWAYS_INLINE
#define TC_ATTRIBUTE_NOINLINE
#endif

}  // namespace libtextclassifier

#endif  // LIBTEXTCLASSIFIER_UTIL_BASE_PORT_H_