libcxx/include/__config

// -*- C++ -*-
//===--------------------------- __config ---------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP_CONFIG
#define _LIBCPP_CONFIG

#pragma GCC system_header

#define _LIBCPP_VERSION 1000

#define _LIBCPP_ABI_VERSION 1

#define _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_X##_LIBCPP_Y
#define _LIBCPP_CONCAT(_LIBCPP_X,_LIBCPP_Y) _LIBCPP_CONCAT1(_LIBCPP_X,_LIBCPP_Y)

#define _LIBCPP_NAMESPACE _LIBCPP_CONCAT(__,_LIBCPP_ABI_VERSION)

#ifdef __LITTLE_ENDIAN__
#if __LITTLE_ENDIAN__
#define _LIBCPP_LITTLE_ENDIAN 1
#define _LIBCPP_BIG_ENDIAN    0
#endif
#endif

#ifdef __BIG_ENDIAN__
#if __BIG_ENDIAN__
#define _LIBCPP_LITTLE_ENDIAN 0
#define _LIBCPP_BIG_ENDIAN    1
#endif
#endif

#if !defined(_LIBCPP_LITTLE_ENDIAN) || !defined(_LIBCPP_BIG_ENDIAN)
# include <endian.h>
# if __BYTE_ORDER == __LITTLE_ENDIAN
#  define _LIBCPP_LITTLE_ENDIAN 1
#  define _LIBCPP_BIG_ENDIAN    0
# elif __BYTE_ORDER == __BIG_ENDIAN
#  define _LIBCPP_LITTLE_ENDIAN 0
#  define _LIBCPP_BIG_ENDIAN    1
# else
#  error unable to determine endian
# endif
#endif

#ifndef _LIBCPP_VISIBILITY_TAG
#define _LIBCPP_VISIBILITY_TAG 1
#endif

#if _LIBCPP_VISIBILITY_TAG
#define _LIBCPP_HIDDEN __attribute__ ((__visibility__("hidden")))
#define _LIBCPP_VISIBLE __attribute__ ((__visibility__("default")))
#else
#define _LIBCPP_HIDDEN
#define _LIBCPP_VISIBLE
#endif

#ifndef _LIBCPP_INLINE_VISIBILITY
#define _LIBCPP_INLINE_VISIBILITY __attribute__ ((__visibility__("hidden"), __always_inline__))
#endif

#ifndef _LIBCPP_EXCEPTION_ABI
#define _LIBCPP_EXCEPTION_ABI __attribute__ ((__visibility__("default")))
#endif

#define _LIBCPP_CANTTHROW __attribute__ ((__nothrow__))

#define _LIBCPP_ALWAYS_INLINE  __attribute__((__always_inline__))

#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3
#define _LIBCPP_MOVE
#endif

#if !(__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
#define _LIBCPP_HAS_NO_STATIC_ASSERT
#endif

#define _LIBCPP_HAS_NO_NULLPTR

#if !(__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
#define _LIBCPP_HAS_NO_VARIADICS
#define _LIBCPP_HAS_NO_DECLTYPE
#endif

#if !(__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
#define _LIBCPP_HAS_NO_UNICODE_CHARS
#define _LIBCPP_HAS_NO_ADVANCED_SFINAE
#endif

#if defined(__clang__)
#define _LIBCPP_HAS_NO_STRONG_USING
#endif

#define _LIBCPP_HAS_NO_TEMPLATE_ALIASES

#ifdef _LIBCPP_HAS_NO_STRONG_USING
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std {
#define _LIBCPP_END_NAMESPACE_STD }
#define _STD std
#else
#define _LIBCPP_BEGIN_NAMESPACE_STD namespace std { namespace _LIBCPP_NAMESPACE {
#define _LIBCPP_END_NAMESPACE_STD  } }

namespace std {
namespace _LIBCPP_NAMESPACE {
}
using namespace _LIBCPP_NAMESPACE __attribute__((__strong__));
}

#define _STD std::_LIBCPP_NAMESPACE
#endif

#ifdef _LIBCPP_HAS_NO_UNICODE_CHARS
    typedef unsigned short char16_t;
    typedef unsigned int   char32_t;
#endif

#ifdef _LIBCPP_HAS_NO_STATIC_ASSERT

template <bool> struct __static_assert_test;
template <> struct __static_assert_test<true> {};
template <unsigned> struct __static_assert_check {};
#define static_assert(__b, __m) \
    typedef __static_assert_check<sizeof(__static_assert_test<(__b)>)> \
    _LIBCPP_CONCAT(__t, __LINE__)

#endif

#ifdef _LIBCPP_HAS_NO_DECLTYPE

#define decltype(x) __typeof__(x)

#endif

#if !__EXCEPTIONS
#define _LIBCPP_NO_EXCEPTIONS
#endif

#endif  // _LIBCPP_CONFIG