get_ptr(mapOfMaps, key, key...)

[folly.git] / folly / Portability.h

diff --git a/folly/Portability.h b/folly/Portability.h
index 12cff605f58128841d4a8f6967ca7f6037bc4905..07426f0533a3456a15f5659fc15cca6afad7c0a2 100644 (file)
--- a/folly/Portability.h
+++ b/folly/Portability.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,10 +24,6 @@
 
 #include <folly/CPortability.h>
 
-#if FOLLY_HAVE_SCHED_H
- #include <sched.h>
-#endif
-
 // Unaligned loads and stores
 namespace folly {
 #if FOLLY_HAVE_UNALIGNED_ACCESS
@@ -74,24 +70,6 @@ constexpr bool kHasUnalignedAccess = false;
 # define FOLLY_DEPRECATED(msg)
 #endif
 
-// noinline
-#ifdef _MSC_VER
-# define FOLLY_NOINLINE __declspec(noinline)
-#elif defined(__clang__) || defined(__GNUC__)
-# define FOLLY_NOINLINE __attribute__((__noinline__))
-#else
-# define FOLLY_NOINLINE
-#endif
-
-// always inline
-#ifdef _MSC_VER
-# define FOLLY_ALWAYS_INLINE __forceinline
-#elif defined(__clang__) || defined(__GNUC__)
-# define FOLLY_ALWAYS_INLINE inline __attribute__((__always_inline__))
-#else
-# define FOLLY_ALWAYS_INLINE inline
-#endif
-
 // warn unused result
 #if defined(_MSC_VER) && (_MSC_VER >= 1700)
 #define FOLLY_WARN_UNUSED_RESULT _Check_return_
@@ -127,6 +105,12 @@ constexpr bool kHasUnalignedAccess = false;
 # define FOLLY_PPC64 0
 #endif
 
+namespace folly {
+constexpr bool kIsArchAmd64 = FOLLY_X64 == 1;
+constexpr bool kIsArchAArch64 = FOLLY_A64 == 1;
+constexpr bool kIsArchPPC64 = FOLLY_PPC64 == 1;
+}
+
 // packing is very ugly in msvc
 #ifdef _MSC_VER
 # define FOLLY_PACK_ATTR /**/
@@ -167,16 +151,12 @@ constexpr bool kHasUnalignedAccess = false;
 # define FOLLY_MSVC_DISABLE_WARNING(warningNumber)
 #endif
 
-// portable version check
-#ifndef __GNUC_PREREQ
-# if defined __GNUC__ && defined __GNUC_MINOR__
-/* nolint */
-#  define __GNUC_PREREQ(maj, min) ((__GNUC__ << 16) + __GNUC_MINOR__ >= \
-                                   ((maj) << 16) + (min))
-# else
-/* nolint */
-#  define __GNUC_PREREQ(maj, min) 0
-# endif
+#ifdef HAVE_SHADOW_LOCAL_WARNINGS
+#define FOLLY_GCC_DISABLE_NEW_SHADOW_WARNINGS        \
+  FOLLY_GCC_DISABLE_WARNING(shadow-compatible-local) \
+  FOLLY_GCC_DISABLE_WARNING(shadow-local)
+#else
+#define FOLLY_GCC_DISABLE_NEW_SHADOW_WARNINGS /* empty */
 #endif
 
 #if defined(__GNUC__) && !defined(__APPLE__) && !__GNUC_PREREQ(4,9)
@@ -231,7 +211,8 @@ namespace std { typedef ::max_align_t max_align_t; }
 // If the new c++ ABI is used, __cxx11 inline namespace needs to be added to
 // some types, e.g. std::list.
 #if _GLIBCXX_USE_CXX11_ABI
-# define FOLLY_GLIBCXX_NAMESPACE_CXX11_BEGIN _GLIBCXX_BEGIN_NAMESPACE_CXX11
+#define FOLLY_GLIBCXX_NAMESPACE_CXX11_BEGIN \
+  inline _GLIBCXX_BEGIN_NAMESPACE_CXX11
 # define FOLLY_GLIBCXX_NAMESPACE_CXX11_END   _GLIBCXX_END_NAMESPACE_CXX11
 #else
 # define FOLLY_GLIBCXX_NAMESPACE_CXX11_BEGIN
@@ -342,4 +323,10 @@ constexpr auto kIsLinux = true;
 #else
 constexpr auto kIsLinux = false;
 #endif
+
+#if defined(_WIN32)
+constexpr auto kIsWindows = true;
+#else
+constexpr auto kIsWindows = false;
+#endif
 }