/*
- * Copyright 2013 Facebook, Inc.
+ * Copyright 2014 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <features.h>
#endif
+#include "CPortability.h"
#if FOLLY_HAVE_SCHED_H
#include <sched.h>
# endif
#endif
-
-/* Define a convenience macro to test when address sanitizer is being used
- * across the different compilers (e.g. clang, gcc) */
-#if defined(__clang__)
-# if __has_feature(address_sanitizer)
-# define FOLLY_SANITIZE_ADDRESS 1
-# endif
-#elif defined (__GNUC__) && \
- (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ >= 5)) && \
- __SANITIZE_ADDRESS__
-# define FOLLY_SANITIZE_ADDRESS 1
-#endif
-
-/* Define attribute wrapper for function attribute used to disable
- * address sanitizer instrumentation. Unfortunately, this attribute
- * has issues when inlining is used, so disable that as well. */
-#ifdef FOLLY_SANITIZE_ADDRESS
-# if defined(__clang__)
-# if __has_attribute(__no_address_safety_analysis__)
-# define FOLLY_DISABLE_ADDRESS_SANITIZER \
- __attribute__((__no_address_safety_analysis__, __noinline__))
-# elif __has_attribute(__no_sanitize_address__)
-# define FOLLY_DISABLE_ADDRESS_SANITIZER \
- __attribute__((__no_sanitize_address__, __noinline__))
-# endif
-# elif defined(__GNUC__)
-# define FOLLY_DISABLE_ADDRESS_SANITIZER \
- __attribute__((__no_address_safety_analysis__, __noinline__))
-# endif
-#endif
-#ifndef FOLLY_DISABLE_ADDRESS_SANITIZER
-# define FOLLY_DISABLE_ADDRESS_SANITIZER
-#endif
-
// It turns out that GNU libstdc++ and LLVM libc++ differ on how they implement
// the 'std' namespace; the latter uses inline namepsaces. Wrap this decision
// up in a macro to make forward-declarations easier.
-#ifdef _LIBCPP_VERSION
+#if FOLLY_USE_LIBCPP
#define FOLLY_NAMESPACE_STD_BEGIN _LIBCPP_BEGIN_NAMESPACE_STD
#define FOLLY_NAMESPACE_STD_END _LIBCPP_END_NAMESPACE_STD
#else
#include "folly/detail/Clock.h"
#endif
+// Provide our own std::__throw_* wrappers for platforms that don't have them
+#if FOLLY_HAVE_BITS_FUNCTEXCEPT_H
+#include <bits/functexcept.h>
+#else
+#include "folly/detail/FunctionalExcept.h"
+#endif
+
+#if defined(__cplusplus)
+// Unfortunately, boost::has_trivial_copy<T> is broken in libc++ due to its
+// usage of __has_trivial_copy(), so we can't use it as a
+// least-common-denominator for C++11 implementations that don't support
+// std::is_trivially_copyable<T>.
+//
+// http://stackoverflow.com/questions/12754886/has-trivial-copy-behaves-differently-in-clang-and-gcc-whos-right
+//
+// As a result, use std::is_trivially_copyable() where it exists, and fall back
+// to Boost otherwise.
+#if FOLLY_HAVE_STD__IS_TRIVIALLY_COPYABLE
+#include <type_traits>
+#define FOLLY_IS_TRIVIALLY_COPYABLE(T) (std::is_trivially_copyable<T>::value)
+#else
+#include <boost/type_traits.hpp>
+#define FOLLY_IS_TRIVIALLY_COPYABLE(T) (boost::has_trivial_copy<T>::value)
+#endif
+#endif // __cplusplus
+
#endif // FOLLY_PORTABILITY_H_