Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit ee0095311b.

boost/config/compiler/codegear.hpp

//  (C) Copyright John Maddock 2001 - 2003.
//  (C) Copyright David Abrahams 2002 - 2003.
//  (C) Copyright Aleksey Gurtovoy 2002.
//  Use, modification and distribution are subject to the
//  Boost Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org for most recent version.

//  CodeGear C++ compiler setup:

//
// versions check:
// last known and checked version is 0x740
#if (__CODEGEARC__ > 0x740)
#  if defined(BOOST_ASSERT_CONFIG)
#     error "boost: Unknown compiler version - please run the configure tests and report the results"
#  else
#     pragma message( "boost: Unknown compiler version - please run the configure tests and report the results")
#  endif
#endif

#ifdef __clang__ // Clang enhanced Windows compiler

#  include "clang.hpp"
#  define BOOST_NO_CXX11_THREAD_LOCAL
#  define BOOST_NO_CXX11_ATOMIC_SMART_PTR

// This bug has been reported to Embarcadero

#if defined(BOOST_HAS_INT128)
#undef BOOST_HAS_INT128
#endif
#if defined(BOOST_HAS_FLOAT128)
#undef BOOST_HAS_FLOAT128
#endif

// The clang-based compilers can not do 128 atomic exchanges

#define BOOST_ATOMIC_NO_CMPXCHG16B

// 32 functions are missing from the current RTL in cwchar, so it really can not be used even if it exists

#  define BOOST_NO_CWCHAR

#  ifndef __MT__  /* If compiling in single-threaded mode, assume there is no CXX11_HDR_ATOMIC */
#    define BOOST_NO_CXX11_HDR_ATOMIC
#  endif

/* temporarily disable this until we can link against fegetround fesetround feholdexcept */

#define BOOST_NO_FENV_H

/* Reported this bug to Embarcadero with the latest C++ Builder Rio release */

#define BOOST_NO_CXX11_HDR_EXCEPTION

//
// check for exception handling support:
//
#if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
#  define BOOST_NO_EXCEPTIONS
#endif

/*

// On non-Win32 platforms let the platform config figure this out:
#ifdef _WIN32
#  define BOOST_HAS_STDINT_H
#endif

//
// __int64:
//
#if !defined(__STRICT_ANSI__)
#  define BOOST_HAS_MS_INT64
#endif
//
// all versions have a <dirent.h>:
//
#if !defined(__STRICT_ANSI__)
#  define BOOST_HAS_DIRENT_H
#endif
//
// Disable Win32 support in ANSI mode:
//
#  pragma defineonoption BOOST_DISABLE_WIN32 -A
//
// MSVC compatibility mode does some nasty things:
// TODO: look up if this doesn't apply to the whole 12xx range
//
#if defined(_MSC_VER) && (_MSC_VER <= 1200)
#  define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
#  define BOOST_NO_VOID_RETURNS
#endif
//

*/

// Specific settings for Embarcadero drivers
#  define BOOST_EMBTC          __CODEGEARC__
#  define BOOST_EMBTC_FULL_VER ((__clang_major__      << 16) | \
                                (__clang_minor__      <<  8) | \
                                 __clang_patchlevel__         )

// Detecting which Embarcadero driver is being used
#if defined(BOOST_EMBTC)
#  if defined(_WIN64)
#    define BOOST_EMBTC_WIN64 1
#    define BOOST_EMBTC_WINDOWS 1
#    ifndef BOOST_USE_WINDOWS_H
#      define BOOST_USE_WINDOWS_H
#    endif
#  elif defined(_WIN32)
#    define BOOST_EMBTC_WIN32C 1
#    define BOOST_EMBTC_WINDOWS 1
#    ifndef BOOST_USE_WINDOWS_H
#      define BOOST_USE_WINDOWS_H
#    endif
#  elif defined(__APPLE__) && defined(__arm__)
#    define BOOST_EMBTC_IOSARM 1
#    define BOOST_EMBTC_IOS 1
#  elif defined(__APPLE__) && defined(__aarch64__)
#    define BOOST_EMBTC_IOSARM64 1
#    define BOOST_EMBTC_IOS 1
#  elif defined(__ANDROID__) && defined(__arm__)
#    define BOOST_EMBTC_AARM 1
#    define BOOST_EMBTC_ANDROID 1
#  elif
#    if defined(BOOST_ASSERT_CONFIG)
#       error "Unknown Embarcadero driver"
#    else
#       warning "Unknown Embarcadero driver"
#    endif /* defined(BOOST_ASSERT_CONFIG) */
#  endif
#endif /* defined(BOOST_EMBTC) */

#if defined(BOOST_EMBTC_WINDOWS)

#if !defined(_chdir)
#define _chdir(x) chdir(x)
#endif

#if !defined(_dup2)
#define _dup2(x,y) dup2(x,y)
#endif

#endif

#  undef BOOST_COMPILER
#  define BOOST_COMPILER "Embarcadero-Clang C++ version " BOOST_STRINGIZE(__CODEGEARC__) " clang: " __clang_version__
// #  define __CODEGEARC_CLANG__ __CODEGEARC__
// #  define __EMBARCADERO_CLANG__ __CODEGEARC__
// #  define __BORLANDC_CLANG__ __BORLANDC__

#else // #if !defined(__clang__)

# define BOOST_CODEGEARC  __CODEGEARC__
# define BOOST_BORLANDC   __BORLANDC__

#if !defined( BOOST_WITH_CODEGEAR_WARNINGS )
// these warnings occur frequently in optimized template code
# pragma warn -8004 // var assigned value, but never used
# pragma warn -8008 // condition always true/false
# pragma warn -8066 // dead code can never execute
# pragma warn -8104 // static members with ctors not threadsafe
# pragma warn -8105 // reference member in class without ctors
#endif

// CodeGear C++ Builder 2009
#if (__CODEGEARC__ <= 0x613)
#  define BOOST_NO_INTEGRAL_INT64_T
#  define BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
#  define BOOST_NO_PRIVATE_IN_AGGREGATE
#  define BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE
   // we shouldn't really need this - but too many things choke
   // without it, this needs more investigation:
#  define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
#  define BOOST_SP_NO_SP_CONVERTIBLE
#endif

// CodeGear C++ Builder 2010
#if (__CODEGEARC__ <= 0x621)
#  define BOOST_NO_TYPENAME_WITH_CTOR    // Cannot use typename keyword when making temporaries of a dependant type
#  define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
#  define BOOST_NO_NESTED_FRIENDSHIP     // TC1 gives nested classes access rights as any other member
#  define BOOST_NO_USING_TEMPLATE
#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
// Temporary hack, until specific MPL preprocessed headers are generated
#  define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS

// CodeGear has not yet completely implemented value-initialization, for
// example for array types, as I reported in 2010: Embarcadero Report 83751,
// "Value-initialization: arrays should have each element value-initialized",
// http://qc.embarcadero.com/wc/qcmain.aspx?d=83751
// Last checked version: Embarcadero C++ 6.21
// See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
// (Niels Dekker, LKEB, April 2010)
#  define BOOST_NO_COMPLETE_VALUE_INITIALIZATION

#  if defined(NDEBUG) && defined(__cplusplus)
      // fix broken <cstring> so that Boost.test works:
#     include <cstring>
#     undef strcmp
#  endif
   // fix broken errno declaration:
#  include <errno.h>
#  ifndef errno
#     define errno errno
#  endif

#endif

// Reportedly, #pragma once is supported since C++ Builder 2010
#if (__CODEGEARC__ >= 0x620)
#  define BOOST_HAS_PRAGMA_ONCE
#endif

#define BOOST_NO_FENV_H

//
// C++0x macros:
//
#if (__CODEGEARC__ <= 0x620)
#define BOOST_NO_CXX11_STATIC_ASSERT
#else
#define BOOST_HAS_STATIC_ASSERT
#endif
#define BOOST_HAS_CHAR16_T
#define BOOST_HAS_CHAR32_T
#define BOOST_HAS_LONG_LONG
// #define BOOST_HAS_ALIGNOF
#define BOOST_HAS_DECLTYPE
#define BOOST_HAS_EXPLICIT_CONVERSION_OPS
// #define BOOST_HAS_RVALUE_REFS
#define BOOST_HAS_SCOPED_ENUM
// #define BOOST_HAS_STATIC_ASSERT
#define BOOST_HAS_STD_TYPE_TRAITS

#define BOOST_NO_CXX11_AUTO_DECLARATIONS
#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
#define BOOST_NO_CXX11_CONSTEXPR
#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
#define BOOST_NO_CXX11_DELETED_FUNCTIONS
#define BOOST_NO_CXX11_EXTERN_TEMPLATE
#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
#define BOOST_NO_CXX11_LAMBDAS
#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
#define BOOST_NO_CXX11_NOEXCEPT
#define BOOST_NO_CXX11_NULLPTR
#define BOOST_NO_CXX11_RANGE_BASED_FOR
#define BOOST_NO_CXX11_RAW_LITERALS
#define BOOST_NO_CXX11_RVALUE_REFERENCES
#define BOOST_NO_SFINAE_EXPR
#define BOOST_NO_CXX11_SFINAE_EXPR
#define BOOST_NO_CXX11_TEMPLATE_ALIASES
#define BOOST_NO_CXX11_UNICODE_LITERALS
#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
#define BOOST_NO_CXX11_ALIGNAS
#define BOOST_NO_CXX11_ALIGNOF
#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
#define BOOST_NO_CXX11_INLINE_NAMESPACES
#define BOOST_NO_CXX11_REF_QUALIFIERS
#define BOOST_NO_CXX11_FINAL
#define BOOST_NO_CXX11_OVERRIDE
#define BOOST_NO_CXX11_THREAD_LOCAL
#define BOOST_NO_CXX11_DECLTYPE_N3276
#define BOOST_NO_CXX11_UNRESTRICTED_UNION

// C++ 14:
#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
#endif
#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
#  define BOOST_NO_CXX14_BINARY_LITERALS
#endif
#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
#  define BOOST_NO_CXX14_CONSTEXPR
#endif
#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
#  define BOOST_NO_CXX14_DECLTYPE_AUTO
#endif
#if (__cplusplus < 201304) // There's no SD6 check for this....
#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
#endif
#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
#endif
#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
#endif
#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
#endif
#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
#endif

// C++17
#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
#endif

#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
#  define BOOST_NO_CXX17_INLINE_VARIABLES
#endif

#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
#endif

#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
#  define BOOST_NO_CXX17_IF_CONSTEXPR
#endif

#if !defined(__cpp_nontype_template_parameter_auto) || (__cpp_nontype_template_parameter_auto < 201606)
#  define BOOST_NO_CXX17_AUTO_NONTYPE_TEMPLATE_PARAMS
#endif

//
// TR1 macros:
//
#define BOOST_HAS_TR1_HASH
#define BOOST_HAS_TR1_TYPE_TRAITS
#define BOOST_HAS_TR1_UNORDERED_MAP
#define BOOST_HAS_TR1_UNORDERED_SET

#define BOOST_HAS_MACRO_USE_FACET

#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST

// On non-Win32 platforms let the platform config figure this out:
#ifdef _WIN32
#  define BOOST_HAS_STDINT_H
#endif

//
// __int64:
//
#if !defined(__STRICT_ANSI__)
#  define BOOST_HAS_MS_INT64
#endif
//
// check for exception handling support:
//
#if !defined(_CPPUNWIND) && !defined(BOOST_CPPUNWIND) && !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
#  define BOOST_NO_EXCEPTIONS
#endif
//
// all versions have a <dirent.h>:
//
#if !defined(__STRICT_ANSI__)
#  define BOOST_HAS_DIRENT_H
#endif
//
// all versions support __declspec:
//
#if defined(__STRICT_ANSI__)
// config/platform/win32.hpp will define BOOST_SYMBOL_EXPORT, etc., unless already defined
#  define BOOST_SYMBOL_EXPORT
#endif
//
// ABI fixing headers:
//
#ifndef BOOST_ABI_PREFIX
#  define BOOST_ABI_PREFIX "boost/config/abi/borland_prefix.hpp"
#endif
#ifndef BOOST_ABI_SUFFIX
#  define BOOST_ABI_SUFFIX "boost/config/abi/borland_suffix.hpp"
#endif
//
// Disable Win32 support in ANSI mode:
//
#  pragma defineonoption BOOST_DISABLE_WIN32 -A
//
// MSVC compatibility mode does some nasty things:
// TODO: look up if this doesn't apply to the whole 12xx range
//
#if defined(_MSC_VER) && (_MSC_VER <= 1200)
#  define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
#  define BOOST_NO_VOID_RETURNS
#endif

#define BOOST_COMPILER "CodeGear C++ version " BOOST_STRINGIZE(__CODEGEARC__)

#endif // #if !defined(__clang__)