1 // Copyright 2014 The Android Open Source Project
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #pragma once
16 
17 #ifdef __cplusplus
18 #define ANDROID_BEGIN_HEADER extern "C" {
19 #define ANDROID_END_HEADER   }
20 #else
21 #define ANDROID_BEGIN_HEADER /* nothing */
22 #define ANDROID_END_HEADER  /* nothing */
23 #endif
24 
25 // ANDROID_GCC_PREREQ(<major>,<minor>) will evaluate to true
26 // iff the current version of GCC is <major>.<minor> or higher.
27 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
28 # define ANDROID_GCC_PREREQ(maj, min) \
29          ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
30 #else
31 # define ANDROID_GCC_PREREQ(maj, min) 0
32 #endif
33