am 601ea30c: am acf0a8b3: Merge "Revert "Add commonly used C++ macros to libbase.""
* commit '601ea30c0b4a760b8b5a89a3aa78ecf2442bc98d':
Revert "Add commonly used C++ macros to libbase."
diff --git a/base/file.cpp b/base/file.cpp
index 118071e..773f33b 100644
--- a/base/file.cpp
+++ b/base/file.cpp
@@ -23,9 +23,9 @@
#include <string>
-#include "base/macros.h" // For TEMP_FAILURE_RETRY on Darwin.
#define LOG_TAG "base.file"
#include "cutils/log.h"
+#include "utils/Compat.h" // For TEMP_FAILURE_RETRY on Darwin.
namespace android {
namespace base {
diff --git a/base/include/base/macros.h b/base/include/base/macros.h
deleted file mode 100644
index b1ce7c6..0000000
--- a/base/include/base/macros.h
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-#ifndef UTILS_MACROS_H
-#define UTILS_MACROS_H
-
-#include <stddef.h> // for size_t
-#include <unistd.h> // for TEMP_FAILURE_RETRY
-
-// bionic and glibc both have TEMP_FAILURE_RETRY, but eg Mac OS' libc doesn't.
-#ifndef TEMP_FAILURE_RETRY
-#define TEMP_FAILURE_RETRY(exp) \
- ({ \
- decltype(exp) _rc; \
- do { \
- _rc = (exp); \
- } while (_rc == -1 && errno == EINTR); \
- _rc; \
- })
-#endif
-
-// A macro to disallow the copy constructor and operator= functions
-// This must be placed in the private: declarations for a class.
-//
-// For disallowing only assign or copy, delete the relevant operator or
-// constructor, for example:
-// void operator=(const TypeName&) = delete;
-// Note, that most uses of DISALLOW_ASSIGN and DISALLOW_COPY are broken
-// semantically, one should either use disallow both or neither. Try to
-// avoid these in new code.
-//
-// When building with C++11 toolchains, just use the language support
-// for explicitly deleted methods.
-#if __cplusplus >= 201103L
-#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&) = delete; \
- void operator=(const TypeName&) = delete
-#else
-#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&); \
- void operator=(const TypeName&)
-#endif
-
-// A macro to disallow all the implicit constructors, namely the
-// default constructor, copy constructor and operator= functions.
-//
-// This should be used in the private: declarations for a class
-// that wants to prevent anyone from instantiating it. This is
-// especially useful for classes containing only static methods.
-#define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
- TypeName(); \
- DISALLOW_COPY_AND_ASSIGN(TypeName)
-
-// The arraysize(arr) macro returns the # of elements in an array arr.
-// The expression is a compile-time constant, and therefore can be
-// used in defining new arrays, for example. If you use arraysize on
-// a pointer by mistake, you will get a compile-time error.
-//
-// One caveat is that arraysize() doesn't accept any array of an
-// anonymous type or a type defined inside a function. In these rare
-// cases, you have to use the unsafe ARRAYSIZE_UNSAFE() macro below. This is
-// due to a limitation in C++'s template system. The limitation might
-// eventually be removed, but it hasn't happened yet.
-
-// This template function declaration is used in defining arraysize.
-// Note that the function doesn't need an implementation, as we only
-// use its type.
-template <typename T, size_t N>
-char(&ArraySizeHelper(T(&array)[N]))[N]; // NOLINT(readability/casting)
-
-#define arraysize(array) (sizeof(ArraySizeHelper(array)))
-
-// ARRAYSIZE_UNSAFE performs essentially the same calculation as arraysize,
-// but can be used on anonymous types or types defined inside
-// functions. It's less safe than arraysize as it accepts some
-// (although not all) pointers. Therefore, you should use arraysize
-// whenever possible.
-//
-// The expression ARRAYSIZE_UNSAFE(a) is a compile-time constant of type
-// size_t.
-//
-// ARRAYSIZE_UNSAFE catches a few type errors. If you see a compiler error
-//
-// "warning: division by zero in ..."
-//
-// when using ARRAYSIZE_UNSAFE, you are (wrongfully) giving it a pointer.
-// You should only use ARRAYSIZE_UNSAFE on statically allocated arrays.
-//
-// The following comments are on the implementation details, and can
-// be ignored by the users.
-//
-// ARRAYSIZE_UNSAFE(arr) works by inspecting sizeof(arr) (the # of bytes in
-// the array) and sizeof(*(arr)) (the # of bytes in one array
-// element). If the former is divisible by the latter, perhaps arr is
-// indeed an array, in which case the division result is the # of
-// elements in the array. Otherwise, arr cannot possibly be an array,
-// and we generate a compiler error to prevent the code from
-// compiling.
-//
-// Since the size of bool is implementation-defined, we need to cast
-// !(sizeof(a) & sizeof(*(a))) to size_t in order to ensure the final
-// result has type size_t.
-//
-// This macro is not perfect as it wrongfully accepts certain
-// pointers, namely where the pointer size is divisible by the pointee
-// size. Since all our code has to go through a 32-bit compiler,
-// where a pointer is 4 bytes, this means all pointers to a type whose
-// size is 3 or greater than 4 will be (righteously) rejected.
-#define ARRAYSIZE_UNSAFE(a) \
- ((sizeof(a) / sizeof(*(a))) / \
- static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))))
-
-#define LIKELY(x) __builtin_expect((x), true)
-#define UNLIKELY(x) __builtin_expect((x), false)
-
-#define WARN_UNUSED __attribute__((warn_unused_result))
-
-// A deprecated function to call to create a false use of the parameter, for
-// example:
-// int foo(int x) { UNUSED(x); return 10; }
-// to avoid compiler warnings. Going forward we prefer ATTRIBUTE_UNUSED.
-template <typename... T>
-void UNUSED(const T&...) {
-}
-
-// An attribute to place on a parameter to a function, for example:
-// int foo(int x ATTRIBUTE_UNUSED) { return 10; }
-// to avoid compiler warnings.
-#define ATTRIBUTE_UNUSED __attribute__((__unused__))
-
-// The FALLTHROUGH_INTENDED macro can be used to annotate implicit fall-through
-// between switch labels:
-// switch (x) {
-// case 40:
-// case 41:
-// if (truth_is_out_there) {
-// ++x;
-// FALLTHROUGH_INTENDED; // Use instead of/along with annotations in
-// // comments.
-// } else {
-// return x;
-// }
-// case 42:
-// ...
-//
-// As shown in the example above, the FALLTHROUGH_INTENDED macro should be
-// followed by a semicolon. It is designed to mimic control-flow statements
-// like 'break;', so it can be placed in most places where 'break;' can, but
-// only if there are no statements on the execution path between it and the
-// next switch label.
-//
-// When compiled with clang in C++11 mode, the FALLTHROUGH_INTENDED macro is
-// expanded to [[clang::fallthrough]] attribute, which is analysed when
-// performing switch labels fall-through diagnostic ('-Wimplicit-fallthrough').
-// See clang documentation on language extensions for details:
-// http://clang.llvm.org/docs/LanguageExtensions.html#clang__fallthrough
-//
-// When used with unsupported compilers, the FALLTHROUGH_INTENDED macro has no
-// effect on diagnostics.
-//
-// In either case this macro has no effect on runtime behavior and performance
-// of code.
-#if defined(__clang__) && __cplusplus >= 201103L && defined(__has_warning)
-#if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough")
-#define FALLTHROUGH_INTENDED [[clang::fallthrough]] // NOLINT
-#endif
-#endif
-
-#ifndef FALLTHROUGH_INTENDED
-#define FALLTHROUGH_INTENDED \
- do { \
- } while (0)
-#endif
-
-#endif // UTILS_MACROS_H