18eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes/*
28eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * Copyright (C) 2010 The Android Open Source Project
38eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes *
48eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License");
58eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * you may not use this file except in compliance with the License.
68eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * You may obtain a copy of the License at
78eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes *
88eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes *      http://www.apache.org/licenses/LICENSE-2.0
98eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes *
108eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * Unless required by applicable law or agreed to in writing, software
118eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS,
128eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
138eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * See the License for the specific language governing permissions and
148eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes * limitations under the License.
158eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes */
168eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes
178eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes#ifndef _BIONIC_MACROS_H_
188eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes#define _BIONIC_MACROS_H_
198eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes
2000bbc7f69f8b3fc2c37cc0f991a3ce03d801150fAndreas Gampe// Frameworks OpenGL code currently leaks this header and allows
2100bbc7f69f8b3fc2c37cc0f991a3ce03d801150fAndreas Gampe// collisions with other declarations, e.g., from libnativehelper.
2200bbc7f69f8b3fc2c37cc0f991a3ce03d801150fAndreas Gampe// TODO: Remove once cleaned up. b/18334516
2300bbc7f69f8b3fc2c37cc0f991a3ce03d801150fAndreas Gampe#if !defined(DISALLOW_COPY_AND_ASSIGN)
248eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions.
258eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// It goes in the private: declarations in a class.
268eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
27d9ff7226613014056c9edd79a68dc5af939107a0Dmitriy Ivanov  TypeName(const TypeName&) = delete;      \
28d9ff7226613014056c9edd79a68dc5af939107a0Dmitriy Ivanov  void operator=(const TypeName&) = delete
2900bbc7f69f8b3fc2c37cc0f991a3ce03d801150fAndreas Gampe#endif  // !defined(DISALLOW_COPY_AND_ASSIGN)
308eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes
318eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// A macro to disallow all the implicit constructors, namely the
328eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// default constructor, copy constructor and operator= functions.
338eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes//
348eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// This should be used in the private: declarations for a class
358eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// that wants to prevent anyone from instantiating it. This is
368eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes// especially useful for classes containing only static methods.
378eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
38d9ff7226613014056c9edd79a68dc5af939107a0Dmitriy Ivanov  TypeName() = delete;                           \
398eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes  DISALLOW_COPY_AND_ASSIGN(TypeName)
408eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes
4103eebcb6e8762e668a0d3af6bb303cccb88c5b81Christopher Ferris#define BIONIC_ALIGN(value, alignment) \
4203eebcb6e8762e668a0d3af6bb303cccb88c5b81Christopher Ferris  (((value) + (alignment) - 1) & ~((alignment) - 1))
4303eebcb6e8762e668a0d3af6bb303cccb88c5b81Christopher Ferris
4403eebcb6e8762e668a0d3af6bb303cccb88c5b81Christopher Ferris#define BIONIC_ROUND_UP_POWER_OF_2(value) \
450b13f29b2cc88e389bb85378c81ccc352361466dChristopher Ferris  ((sizeof(value) == 8) \
4627047faf283cb9d3d025a984cd9934fd2c404407Christopher Ferris    ? (1UL << (64 - __builtin_clzl(static_cast<unsigned long>(value)))) \
470b13f29b2cc88e389bb85378c81ccc352361466dChristopher Ferris    : (1UL << (32 - __builtin_clz(static_cast<unsigned int>(value)))))
4803eebcb6e8762e668a0d3af6bb303cccb88c5b81Christopher Ferris
498eac9af24ea7e570e0b297bcd6ac8a46ba3ecc39Elliott Hughes#endif // _BIONIC_MACROS_H_
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