1 /*
2  * Copyright (C) 2011 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 #ifndef __CUTILS_BITOPS_H
18 #define __CUTILS_BITOPS_H
19 
20 #include <stdbool.h>
21 #include <string.h>
22 #include <strings.h>
23 #include <sys/cdefs.h>
24 
25 __BEGIN_DECLS
26 
popcount(unsigned int x)27 static inline int popcount(unsigned int x) {
28     return __builtin_popcount(x);
29 }
30 
popcountl(unsigned long x)31 static inline int popcountl(unsigned long x) {
32     return __builtin_popcountl(x);
33 }
34 
popcountll(unsigned long long x)35 static inline int popcountll(unsigned long long x) {
36     return __builtin_popcountll(x);
37 }
38 
39 __END_DECLS
40 
41 #endif /* __CUTILS_BITOPS_H */
42