--- /dev/null
+/*************************************************************************
+ *
+ * Copyright 2016 Realm Inc.
+ *
+ * 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 REALM_UTIL_FEATURES_H
+#define REALM_UTIL_FEATURES_H
+
+#ifdef _MSC_VER
+#pragma warning(disable : 4800) // Visual Studio int->bool performance warnings
+#endif
+
+#if defined(_WIN32) && !defined(NOMINMAX)
+#define NOMINMAX
+#endif
+
+#include <realm/util/config.h>
+
+/* The maximum number of elements in a B+-tree node. Applies to inner nodes and
+ * to leaves. The minimum allowable value is 2.
+ */
+#ifndef REALM_MAX_BPNODE_SIZE
+#define REALM_MAX_BPNODE_SIZE 1000
+#endif
+
+
+#define REALM_QUOTE_2(x) #x
+#define REALM_QUOTE(x) REALM_QUOTE_2(x)
+
+/* See these links for information about feature check macroes in GCC,
+ * Clang, and MSVC:
+ *
+ * http://gcc.gnu.org/projects/cxx0x.html
+ * http://clang.llvm.org/cxx_status.html
+ * http://clang.llvm.org/docs/LanguageExtensions.html#checks-for-standard-language-features
+ * http://msdn.microsoft.com/en-us/library/vstudio/hh567368.aspx
+ * http://sourceforge.net/p/predef/wiki/Compilers
+ */
+
+
+/* Compiler is GCC and version is greater than or equal to the specified version */
+#define REALM_HAVE_AT_LEAST_GCC(maj, min) \
+ (__GNUC__ > (maj) || __GNUC__ == (maj) && __GNUC_MINOR__ >= (min))
+
+#if defined(__clang__)
+#define REALM_HAVE_CLANG_FEATURE(feature) __has_feature(feature)
+#define REALM_HAVE_CLANG_WARNING(warning) __has_warning(warning)
+#else
+#define REALM_HAVE_CLANG_FEATURE(feature) 0
+#define REALM_HAVE_CLANG_WARNING(warning) 0
+#endif
+
+#ifdef __has_cpp_attribute
+#define REALM_HAS_CPP_ATTRIBUTE(attr) __has_cpp_attribute(attr)
+#else
+#define REALM_HAS_CPP_ATTRIBUTE(attr) 0
+#endif
+
+#if REALM_HAS_CPP_ATTRIBUTE(clang::fallthrough)
+#define REALM_FALLTHROUGH [[clang::fallthrough]]
+#elif REALM_HAS_CPP_ATTRIBUTE(fallthrough)
+#define REALM_FALLTHROUGH [[fallthrough]]
+#else
+#define REALM_FALLTHROUGH
+#endif
+
+// This should be renamed to REALM_UNREACHABLE as soon as REALM_UNREACHABLE is renamed to
+// REALM_ASSERT_NOT_REACHED which will better reflect its nature
+#if defined(__GNUC__) || defined(__clang__)
+#define REALM_COMPILER_HINT_UNREACHABLE __builtin_unreachable
+#else
+#define REALM_COMPILER_HINT_UNREACHABLE abort
+#endif
+
+#if defined(__GNUC__) // clang or GCC
+#define REALM_PRAGMA(v) _Pragma(REALM_QUOTE_2(v))
+#elif defined(_MSC_VER) // VS
+#define REALM_PRAGMA(v) __pragma(v)
+#else
+#define REALM_PRAGMA(v)
+#endif
+
+#if defined(__clang__)
+#define REALM_DIAG(v) REALM_PRAGMA(clang diagnostic v)
+#elif defined(__GNUC__)
+#define REALM_DIAG(v) REALM_PRAGMA(GCC diagnostic v)
+#else
+#define REALM_DIAG(v)
+#endif
+
+#define REALM_DIAG_PUSH() REALM_DIAG(push)
+#define REALM_DIAG_POP() REALM_DIAG(pop)
+
+#ifdef _MSC_VER
+#define REALM_VS_WARNING_DISABLE #pragma warning (default: 4297)
+#endif
+
+#if REALM_HAVE_CLANG_WARNING("-Wtautological-compare") || REALM_HAVE_AT_LEAST_GCC(6, 0)
+#define REALM_DIAG_IGNORE_TAUTOLOGICAL_COMPARE() REALM_DIAG(ignored "-Wtautological-compare")
+#else
+#define REALM_DIAG_IGNORE_TAUTOLOGICAL_COMPARE()
+#endif
+
+#ifdef _MSC_VER
+# define REALM_DIAG_IGNORE_UNSIGNED_MINUS() REALM_PRAGMA(warning(disable:4146))
+#else
+#define REALM_DIAG_IGNORE_UNSIGNED_MINUS()
+#endif
+
+/* Compiler is MSVC (Microsoft Visual C++) */
+#if defined(_MSC_VER) && _MSC_VER >= 1600
+#define REALM_HAVE_AT_LEAST_MSVC_10_2010 1
+#endif
+#if defined(_MSC_VER) && _MSC_VER >= 1700
+#define REALM_HAVE_AT_LEAST_MSVC_11_2012 1
+#endif
+#if defined(_MSC_VER) && _MSC_VER >= 1800
+#define REALM_HAVE_AT_LEAST_MSVC_12_2013 1
+#endif
+
+
+/* The way to specify that a function never returns. */
+#if REALM_HAVE_AT_LEAST_GCC(4, 8) || REALM_HAVE_CLANG_FEATURE(cxx_attributes)
+#define REALM_NORETURN [[noreturn]]
+#elif __GNUC__
+#define REALM_NORETURN __attribute__((noreturn))
+#elif defined(_MSC_VER)
+#define REALM_NORETURN __declspec(noreturn)
+#else
+#define REALM_NORETURN
+#endif
+
+
+/* The way to specify that a variable or type is intended to possibly
+ * not be used. Use it to suppress a warning from the compiler. */
+#if __GNUC__
+#define REALM_UNUSED __attribute__((unused))
+#else
+#define REALM_UNUSED
+#endif
+
+/* The way to specify that a function is deprecated
+ * not be used. Use it to suppress a warning from the compiler. */
+#if __GNUC__
+#define REALM_DEPRECATED(x) [[deprecated(x)]]
+#else
+#define REALM_DEPRECATED(x) __declspec(deprecated(x))
+#endif
+
+
+#if __GNUC__ || defined __INTEL_COMPILER
+#define REALM_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
+#define REALM_LIKELY(expr) __builtin_expect(!!(expr), 1)
+#else
+#define REALM_UNLIKELY(expr) (expr)
+#define REALM_LIKELY(expr) (expr)
+#endif
+
+
+#if defined(__GNUC__) || defined(__HP_aCC)
+#define REALM_FORCEINLINE inline __attribute__((always_inline))
+#elif defined(_MSC_VER)
+#define REALM_FORCEINLINE __forceinline
+#else
+#define REALM_FORCEINLINE inline
+#endif
+
+
+#if defined(__GNUC__) || defined(__HP_aCC)
+#define REALM_NOINLINE __attribute__((noinline))
+#elif defined(_MSC_VER)
+#define REALM_NOINLINE __declspec(noinline)
+#else
+#define REALM_NOINLINE
+#endif
+
+
+/* Thread specific data (only for POD types) */
+#if defined __clang__
+#define REALM_THREAD_LOCAL __thread
+#else
+#define REALM_THREAD_LOCAL thread_local
+#endif
+
+
+#if defined ANDROID
+#define REALM_ANDROID 1
+#else
+#define REALM_ANDROID 0
+#endif
+
+#if defined _WIN32
+# include <winapifamily.h>
+# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
+# define REALM_WINDOWS 1
+# define REALM_UWP 0
+# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+# define REALM_WINDOWS 0
+# define REALM_UWP 1
+# endif
+#else
+#define REALM_WINDOWS 0
+#define REALM_UWP 0
+#endif
+
+// Some documentation of the defines provided by Apple:
+// http://developer.apple.com/library/mac/documentation/Porting/Conceptual/PortingUnix/compiling/compiling.html#//apple_ref/doc/uid/TP40002850-SW13
+#if defined __APPLE__ && defined __MACH__
+#define REALM_PLATFORM_APPLE 1
+/* Apple OSX and iOS (Darwin). */
+#include <Availability.h>
+#include <TargetConditionals.h>
+#if TARGET_OS_IPHONE == 1
+/* Device (iPhone or iPad) or simulator. */
+#define REALM_IOS 1
+#else
+#define REALM_IOS 0
+#endif
+#if TARGET_OS_WATCH == 1
+/* Device (Apple Watch) or simulator. */
+#define REALM_WATCHOS 1
+#else
+#define REALM_WATCHOS 0
+#endif
+#if TARGET_OS_TV
+/* Device (Apple TV) or simulator. */
+#define REALM_TVOS 1
+#else
+#define REALM_TVOS 0
+#endif
+#else
+#define REALM_PLATFORM_APPLE 0
+#define REALM_IOS 0
+#define REALM_WATCHOS 0
+#define REALM_TVOS 0
+#endif
+
+// asl_log is deprecated in favor of os_log as of the following versions:
+// macos(10.12), ios(10.0), watchos(3.0), tvos(10.0)
+// versions are defined in /usr/include/Availability.h
+// __MAC_10_12 101200
+// __IPHONE_10_0 100000
+// __WATCHOS_3_0 30000
+// __TVOS_10_0 100000
+#if REALM_PLATFORM_APPLE \
+ && ( \
+ (REALM_IOS && defined(__IPHONE_OS_VERSION_MIN_REQUIRED) \
+ && __IPHONE_OS_VERSION_MIN_REQUIRED >= 100000) \
+ || (REALM_TVOS && defined(__TV_OS_VERSION_MIN_REQUIRED) \
+ && __TV_OS_VERSION_MIN_REQUIRED >= 100000) \
+ || (REALM_WATCHOS && defined(__WATCH_OS_VERSION_MIN_REQUIRED) \
+ && __WATCH_OS_VERSION_MIN_REQUIRED >= 30000) \
+ || (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) \
+ && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) \
+ )
+#define REALM_APPLE_OS_LOG 1
+#else
+#define REALM_APPLE_OS_LOG 0
+#endif
+
+#if REALM_ANDROID || REALM_IOS || REALM_WATCHOS || REALM_TVOS || REALM_UWP
+#define REALM_MOBILE 1
+#else
+#define REALM_MOBILE 0
+#endif
+
+
+#if defined(REALM_DEBUG) && !defined(REALM_COOKIE_CHECK)
+#define REALM_COOKIE_CHECK
+#endif
+
+#if !REALM_IOS && !REALM_WATCHOS && !REALM_TVOS && !defined(_WIN32) && !REALM_ANDROID
+#define REALM_ASYNC_DAEMON
+#endif
+
+// We're in i686 mode
+#if defined(__i386) || defined(__i386__) || defined(__i686__) || defined(_M_I86) || defined(_M_IX86)
+#define REALM_ARCHITECTURE_X86_32 1
+#else
+#define REALM_ARCHITECTURE_X86_32 0
+#endif
+
+// We're in amd64 mode
+#if defined(__amd64) || defined(__amd64__) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || \
+ defined(_M_AMD64)
+#define REALM_ARCHITECTURE_X86_64 1
+#else
+#define REALM_ARCHITECTURE_X86_64 0
+#endif
+
+#endif /* REALM_UTIL_FEATURES_H */
fnp / wl-app.git / blobdiff