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50 lines
2.0 KiB
C
50 lines
2.0 KiB
C
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _BIONIC_MACROS_H_
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#define _BIONIC_MACROS_H_
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// Frameworks OpenGL code currently leaks this header and allows
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// collisions with other declarations, e.g., from libnativehelper.
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// TODO: Remove once cleaned up. b/18334516
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#if !defined(DISALLOW_COPY_AND_ASSIGN)
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// DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions.
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// It goes in the private: declarations in a class.
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#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
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TypeName(const TypeName&) = delete; \
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void operator=(const TypeName&) = delete
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#endif // !defined(DISALLOW_COPY_AND_ASSIGN)
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// A macro to disallow all the implicit constructors, namely the
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// default constructor, copy constructor and operator= functions.
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//
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// This should be used in the private: declarations for a class
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// that wants to prevent anyone from instantiating it. This is
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// especially useful for classes containing only static methods.
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#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
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TypeName() = delete; \
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DISALLOW_COPY_AND_ASSIGN(TypeName)
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#define BIONIC_ALIGN(value, alignment) \
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(((value) + (alignment) - 1) & ~((alignment) - 1))
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#define BIONIC_ROUND_UP_POWER_OF_2(value) \
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((sizeof(value) == 8) \
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? (1UL << (64 - __builtin_clzl(static_cast<unsigned long>(value)))) \
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: (1UL << (32 - __builtin_clz(static_cast<unsigned int>(value)))))
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#endif // _BIONIC_MACROS_H_
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