602 lines
18 KiB
C++
602 lines
18 KiB
C++
// Boost config.hpp configuration header file ------------------------------//
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// Copyright (c) 2001-2003 John Maddock
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// Copyright (c) 2001 Darin Adler
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// Copyright (c) 2001 Peter Dimov
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// Copyright (c) 2002 Bill Kempf
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// Copyright (c) 2002 Jens Maurer
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// Copyright (c) 2002-2003 David Abrahams
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// Copyright (c) 2003 Gennaro Prota
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// Copyright (c) 2003 Eric Friedman
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/ for most recent version.
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// Boost config.hpp policy and rationale documentation has been moved to
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// http://www.boost.org/libs/config/
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//
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// This file is intended to be stable, and relatively unchanging.
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// It should contain boilerplate code only - no compiler specific
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// code unless it is unavoidable - no changes unless unavoidable.
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#ifndef BOOST_CONFIG_SUFFIX_HPP
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#define BOOST_CONFIG_SUFFIX_HPP
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//
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// look for long long by looking for the appropriate macros in <limits.h>.
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// Note that we use limits.h rather than climits for maximal portability,
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// remember that since these just declare a bunch of macros, there should be
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// no namespace issues from this.
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//
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#if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG) \
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&& !defined(BOOST_MSVC) && !defined(__BORLANDC__)
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# include <limits.h>
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# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
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# define BOOST_HAS_LONG_LONG
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# else
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# define BOOST_NO_LONG_LONG
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# endif
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#endif
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// GCC 3.x will clean up all of those nasty macro definitions that
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// BOOST_NO_CTYPE_FUNCTIONS is intended to help work around, so undefine
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// it under GCC 3.x.
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#if defined(__GNUC__) && (__GNUC__ >= 3) && defined(BOOST_NO_CTYPE_FUNCTIONS)
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# undef BOOST_NO_CTYPE_FUNCTIONS
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#endif
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//
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// Assume any extensions are in namespace std:: unless stated otherwise:
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//
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# ifndef BOOST_STD_EXTENSION_NAMESPACE
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# define BOOST_STD_EXTENSION_NAMESPACE std
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# endif
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//
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// If cv-qualified specializations are not allowed, then neither are cv-void ones:
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//
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# if defined(BOOST_NO_CV_SPECIALIZATIONS) \
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&& !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
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# define BOOST_NO_CV_VOID_SPECIALIZATIONS
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# endif
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//
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// If there is no numeric_limits template, then it can't have any compile time
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// constants either!
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//
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# if defined(BOOST_NO_LIMITS) \
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&& !defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS)
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# define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
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# define BOOST_NO_MS_INT64_NUMERIC_LIMITS
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# define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
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# endif
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//
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// if there is no long long then there is no specialisation
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// for numeric_limits<long long> either:
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//
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#if !defined(BOOST_HAS_LONG_LONG) && !defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)
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# define BOOST_NO_LONG_LONG_NUMERIC_LIMITS
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#endif
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//
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// if there is no __int64 then there is no specialisation
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// for numeric_limits<__int64> either:
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//
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#if !defined(BOOST_HAS_MS_INT64) && !defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS)
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# define BOOST_NO_MS_INT64_NUMERIC_LIMITS
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#endif
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//
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// if member templates are supported then so is the
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// VC6 subset of member templates:
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//
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# if !defined(BOOST_NO_MEMBER_TEMPLATES) \
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&& !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
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# define BOOST_MSVC6_MEMBER_TEMPLATES
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# endif
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//
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// Without partial specialization, can't test for partial specialisation bugs:
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//
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# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
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&& !defined(BOOST_BCB_PARTIAL_SPECIALIZATION_BUG)
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# define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
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# endif
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//
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// Without partial specialization, we can't have array-type partial specialisations:
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//
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# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
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&& !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
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# define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS
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# endif
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//
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// Without partial specialization, std::iterator_traits can't work:
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//
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# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
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&& !defined(BOOST_NO_STD_ITERATOR_TRAITS)
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# define BOOST_NO_STD_ITERATOR_TRAITS
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# endif
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//
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// Without partial specialization, partial
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// specialization with default args won't work either:
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//
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# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
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&& !defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
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# define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
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# endif
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//
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// Without member template support, we can't have template constructors
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// in the standard library either:
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//
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# if defined(BOOST_NO_MEMBER_TEMPLATES) \
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&& !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
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&& !defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
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# define BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS
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# endif
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//
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// Without member template support, we can't have a conforming
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// std::allocator template either:
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//
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# if defined(BOOST_NO_MEMBER_TEMPLATES) \
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&& !defined(BOOST_MSVC6_MEMBER_TEMPLATES) \
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&& !defined(BOOST_NO_STD_ALLOCATOR)
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# define BOOST_NO_STD_ALLOCATOR
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# endif
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//
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// without ADL support then using declarations will break ADL as well:
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//
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#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
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# define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
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#endif
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//
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// Without typeid support we have no dynamic RTTI either:
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//
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#if defined(BOOST_NO_TYPEID) && !defined(BOOST_NO_RTTI)
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# define BOOST_NO_RTTI
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#endif
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//
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// If we have a standard allocator, then we have a partial one as well:
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//
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#if !defined(BOOST_NO_STD_ALLOCATOR)
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# define BOOST_HAS_PARTIAL_STD_ALLOCATOR
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#endif
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//
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// We can't have a working std::use_facet if there is no std::locale:
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//
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# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_USE_FACET)
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# define BOOST_NO_STD_USE_FACET
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# endif
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//
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// We can't have a std::messages facet if there is no std::locale:
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//
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# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_MESSAGES)
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# define BOOST_NO_STD_MESSAGES
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# endif
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//
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// We can't have a working std::wstreambuf if there is no std::locale:
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//
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# if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF)
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# define BOOST_NO_STD_WSTREAMBUF
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# endif
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//
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// We can't have a <cwctype> if there is no <cwchar>:
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//
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# if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_CWCTYPE)
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# define BOOST_NO_CWCTYPE
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# endif
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//
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// We can't have a swprintf if there is no <cwchar>:
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//
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# if defined(BOOST_NO_CWCHAR) && !defined(BOOST_NO_SWPRINTF)
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# define BOOST_NO_SWPRINTF
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# endif
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//
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// If Win32 support is turned off, then we must turn off
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// threading support also, unless there is some other
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// thread API enabled:
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//
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#if defined(BOOST_DISABLE_WIN32) && defined(_WIN32) \
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&& !defined(BOOST_DISABLE_THREADS) && !defined(BOOST_HAS_PTHREADS)
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# define BOOST_DISABLE_THREADS
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#endif
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//
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// Turn on threading support if the compiler thinks that it's in
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// multithreaded mode. We put this here because there are only a
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// limited number of macros that identify this (if there's any missing
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// from here then add to the appropriate compiler section):
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//
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#if (defined(__MT__) || defined(_MT) || defined(_REENTRANT) \
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|| defined(_PTHREADS) || defined(__APPLE__) || defined(__DragonFly__)) \
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&& !defined(BOOST_HAS_THREADS)
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# define BOOST_HAS_THREADS
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#endif
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//
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// Turn threading support off if BOOST_DISABLE_THREADS is defined:
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//
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#if defined(BOOST_DISABLE_THREADS) && defined(BOOST_HAS_THREADS)
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# undef BOOST_HAS_THREADS
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#endif
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//
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// Turn threading support off if we don't recognise the threading API:
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//
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#if defined(BOOST_HAS_THREADS) && !defined(BOOST_HAS_PTHREADS)\
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&& !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_BETHREADS)\
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&& !defined(BOOST_HAS_MPTASKS)
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# undef BOOST_HAS_THREADS
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#endif
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//
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// Turn threading detail macros off if we don't (want to) use threading
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//
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#ifndef BOOST_HAS_THREADS
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# undef BOOST_HAS_PTHREADS
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# undef BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
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# undef BOOST_HAS_PTHREAD_YIELD
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# undef BOOST_HAS_PTHREAD_DELAY_NP
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# undef BOOST_HAS_WINTHREADS
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# undef BOOST_HAS_BETHREADS
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# undef BOOST_HAS_MPTASKS
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#endif
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//
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// If the compiler claims to be C99 conformant, then it had better
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// have a <stdint.h>:
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//
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# if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901)
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# define BOOST_HAS_STDINT_H
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# ifndef BOOST_HAS_LOG1P
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# define BOOST_HAS_LOG1P
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# endif
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# ifndef BOOST_HAS_EXPM1
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# define BOOST_HAS_EXPM1
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# endif
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# endif
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//
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// Define BOOST_NO_SLIST and BOOST_NO_HASH if required.
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// Note that this is for backwards compatibility only.
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//
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# if !defined(BOOST_HAS_SLIST) && !defined(BOOST_NO_SLIST)
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# define BOOST_NO_SLIST
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# endif
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# if !defined(BOOST_HAS_HASH) && !defined(BOOST_NO_HASH)
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# define BOOST_NO_HASH
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# endif
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//
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// Set BOOST_SLIST_HEADER if not set already:
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//
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#if defined(BOOST_HAS_SLIST) && !defined(BOOST_SLIST_HEADER)
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# define BOOST_SLIST_HEADER <slist>
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#endif
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//
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// Set BOOST_HASH_SET_HEADER if not set already:
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//
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#if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_SET_HEADER)
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# define BOOST_HASH_SET_HEADER <hash_set>
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#endif
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//
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// Set BOOST_HASH_MAP_HEADER if not set already:
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//
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#if defined(BOOST_HAS_HASH) && !defined(BOOST_HASH_MAP_HEADER)
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# define BOOST_HASH_MAP_HEADER <hash_map>
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#endif
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//
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// Set BOOST_NO_INITIALIZER_LISTS if there is no library support.
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//
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#if defined(BOOST_NO_0X_HDR_INITIALIZER_LIST) && !defined(BOOST_NO_INITIALIZER_LISTS)
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# define BOOST_NO_INITIALIZER_LISTS
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#endif
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// BOOST_HAS_ABI_HEADERS
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// This macro gets set if we have headers that fix the ABI,
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// and prevent ODR violations when linking to external libraries:
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#if defined(BOOST_ABI_PREFIX) && defined(BOOST_ABI_SUFFIX) && !defined(BOOST_HAS_ABI_HEADERS)
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# define BOOST_HAS_ABI_HEADERS
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#endif
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#if defined(BOOST_HAS_ABI_HEADERS) && defined(BOOST_DISABLE_ABI_HEADERS)
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# undef BOOST_HAS_ABI_HEADERS
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#endif
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// BOOST_NO_STDC_NAMESPACE workaround --------------------------------------//
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// Because std::size_t usage is so common, even in boost headers which do not
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// otherwise use the C library, the <cstddef> workaround is included here so
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// that ugly workaround code need not appear in many other boost headers.
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// NOTE WELL: This is a workaround for non-conforming compilers; <cstddef>
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// must still be #included in the usual places so that <cstddef> inclusion
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// works as expected with standard conforming compilers. The resulting
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// double inclusion of <cstddef> is harmless.
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# ifdef BOOST_NO_STDC_NAMESPACE
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# include <cstddef>
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namespace std { using ::ptrdiff_t; using ::size_t; }
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# endif
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// Workaround for the unfortunate min/max macros defined by some platform headers
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#define BOOST_PREVENT_MACRO_SUBSTITUTION
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#ifndef BOOST_USING_STD_MIN
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# define BOOST_USING_STD_MIN() using std::min
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#endif
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#ifndef BOOST_USING_STD_MAX
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# define BOOST_USING_STD_MAX() using std::max
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#endif
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// BOOST_NO_STD_MIN_MAX workaround -----------------------------------------//
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# ifdef BOOST_NO_STD_MIN_MAX
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namespace std {
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template <class _Tp>
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inline const _Tp& min BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
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return __b < __a ? __b : __a;
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}
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template <class _Tp>
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inline const _Tp& max BOOST_PREVENT_MACRO_SUBSTITUTION (const _Tp& __a, const _Tp& __b) {
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return __a < __b ? __b : __a;
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}
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}
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# endif
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// BOOST_STATIC_CONSTANT workaround --------------------------------------- //
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// On compilers which don't allow in-class initialization of static integral
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// constant members, we must use enums as a workaround if we want the constants
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// to be available at compile-time. This macro gives us a convenient way to
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// declare such constants.
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# ifdef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
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# define BOOST_STATIC_CONSTANT(type, assignment) enum { assignment }
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# else
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# define BOOST_STATIC_CONSTANT(type, assignment) static const type assignment
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# endif
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// BOOST_USE_FACET / HAS_FACET workaround ----------------------------------//
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// When the standard library does not have a conforming std::use_facet there
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// are various workarounds available, but they differ from library to library.
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// The same problem occurs with has_facet.
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// These macros provide a consistent way to access a locale's facets.
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// Usage:
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// replace
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// std::use_facet<Type>(loc);
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// with
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// BOOST_USE_FACET(Type, loc);
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// Note do not add a std:: prefix to the front of BOOST_USE_FACET!
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// Use for BOOST_HAS_FACET is analogous.
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#if defined(BOOST_NO_STD_USE_FACET)
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# ifdef BOOST_HAS_TWO_ARG_USE_FACET
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# define BOOST_USE_FACET(Type, loc) std::use_facet(loc, static_cast<Type*>(0))
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# define BOOST_HAS_FACET(Type, loc) std::has_facet(loc, static_cast<Type*>(0))
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# elif defined(BOOST_HAS_MACRO_USE_FACET)
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# define BOOST_USE_FACET(Type, loc) std::_USE(loc, Type)
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# define BOOST_HAS_FACET(Type, loc) std::_HAS(loc, Type)
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# elif defined(BOOST_HAS_STLP_USE_FACET)
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# define BOOST_USE_FACET(Type, loc) (*std::_Use_facet<Type >(loc))
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# define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
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# endif
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#else
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# define BOOST_USE_FACET(Type, loc) std::use_facet< Type >(loc)
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# define BOOST_HAS_FACET(Type, loc) std::has_facet< Type >(loc)
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#endif
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// BOOST_NESTED_TEMPLATE workaround ------------------------------------------//
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// Member templates are supported by some compilers even though they can't use
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// the A::template member<U> syntax, as a workaround replace:
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//
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// typedef typename A::template rebind<U> binder;
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//
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// with:
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//
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// typedef typename A::BOOST_NESTED_TEMPLATE rebind<U> binder;
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#ifndef BOOST_NO_MEMBER_TEMPLATE_KEYWORD
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# define BOOST_NESTED_TEMPLATE template
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#else
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# define BOOST_NESTED_TEMPLATE
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#endif
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// BOOST_UNREACHABLE_RETURN(x) workaround -------------------------------------//
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// Normally evaluates to nothing, unless BOOST_NO_UNREACHABLE_RETURN_DETECTION
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// is defined, in which case it evaluates to return x; Use when you have a return
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// statement that can never be reached.
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#ifdef BOOST_NO_UNREACHABLE_RETURN_DETECTION
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# define BOOST_UNREACHABLE_RETURN(x) return x;
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#else
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# define BOOST_UNREACHABLE_RETURN(x)
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#endif
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// BOOST_DEDUCED_TYPENAME workaround ------------------------------------------//
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//
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// Some compilers don't support the use of `typename' for dependent
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// types in deduced contexts, e.g.
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//
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// template <class T> void f(T, typename T::type);
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// ^^^^^^^^
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// Replace these declarations with:
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//
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// template <class T> void f(T, BOOST_DEDUCED_TYPENAME T::type);
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#ifndef BOOST_NO_DEDUCED_TYPENAME
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# define BOOST_DEDUCED_TYPENAME typename
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#else
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# define BOOST_DEDUCED_TYPENAME
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#endif
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#ifndef BOOST_NO_TYPENAME_WITH_CTOR
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# define BOOST_CTOR_TYPENAME typename
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#else
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# define BOOST_CTOR_TYPENAME
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#endif
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// long long workaround ------------------------------------------//
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// On gcc (and maybe other compilers?) long long is alway supported
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// but it's use may generate either warnings (with -ansi), or errors
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// (with -pedantic -ansi) unless it's use is prefixed by __extension__
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//
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#if defined(BOOST_HAS_LONG_LONG)
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namespace boost{
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# ifdef __GNUC__
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__extension__ typedef long long long_long_type;
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__extension__ typedef unsigned long long ulong_long_type;
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# else
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typedef long long long_long_type;
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typedef unsigned long long ulong_long_type;
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# endif
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}
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#endif
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// BOOST_[APPEND_]EXPLICIT_TEMPLATE_[NON_]TYPE macros --------------------------//
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//
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// Some compilers have problems with function templates whose template
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// parameters don't appear in the function parameter list (basically
|
|
// they just link one instantiation of the template in the final
|
|
// executable). These macros provide a uniform way to cope with the
|
|
// problem with no effects on the calling syntax.
|
|
|
|
// Example:
|
|
//
|
|
// #include <iostream>
|
|
// #include <ostream>
|
|
// #include <typeinfo>
|
|
//
|
|
// template <int n>
|
|
// void f() { std::cout << n << ' '; }
|
|
//
|
|
// template <typename T>
|
|
// void g() { std::cout << typeid(T).name() << ' '; }
|
|
//
|
|
// int main() {
|
|
// f<1>();
|
|
// f<2>();
|
|
//
|
|
// g<int>();
|
|
// g<double>();
|
|
// }
|
|
//
|
|
// With VC++ 6.0 the output is:
|
|
//
|
|
// 2 2 double double
|
|
//
|
|
// To fix it, write
|
|
//
|
|
// template <int n>
|
|
// void f(BOOST_EXPLICIT_TEMPLATE_NON_TYPE(int, n)) { ... }
|
|
//
|
|
// template <typename T>
|
|
// void g(BOOST_EXPLICIT_TEMPLATE_TYPE(T)) { ... }
|
|
//
|
|
|
|
|
|
#if defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS
|
|
|
|
# include "boost/type.hpp"
|
|
# include "boost/non_type.hpp"
|
|
|
|
# define BOOST_EXPLICIT_TEMPLATE_TYPE(t) boost::type<t>* = 0
|
|
# define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t) boost::type<t>*
|
|
# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v) boost::non_type<t, v>* = 0
|
|
# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) boost::non_type<t, v>*
|
|
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t) \
|
|
, BOOST_EXPLICIT_TEMPLATE_TYPE(t)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t) \
|
|
, BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v) \
|
|
, BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v) \
|
|
, BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
|
|
|
|
#else
|
|
|
|
// no workaround needed: expand to nothing
|
|
|
|
# define BOOST_EXPLICIT_TEMPLATE_TYPE(t)
|
|
# define BOOST_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
|
|
# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
|
|
# define BOOST_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
|
|
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(t)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE_SPEC(t)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE(t, v)
|
|
# define BOOST_APPEND_EXPLICIT_TEMPLATE_NON_TYPE_SPEC(t, v)
|
|
|
|
|
|
#endif // defined BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS
|
|
|
|
|
|
// ---------------------------------------------------------------------------//
|
|
|
|
//
|
|
// Helper macro BOOST_STRINGIZE:
|
|
// Converts the parameter X to a string after macro replacement
|
|
// on X has been performed.
|
|
//
|
|
#define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X)
|
|
#define BOOST_DO_STRINGIZE(X) #X
|
|
|
|
//
|
|
// Helper macro BOOST_JOIN:
|
|
// The following piece of macro magic joins the two
|
|
// arguments together, even when one of the arguments is
|
|
// itself a macro (see 16.3.1 in C++ standard). The key
|
|
// is that macro expansion of macro arguments does not
|
|
// occur in BOOST_DO_JOIN2 but does in BOOST_DO_JOIN.
|
|
//
|
|
#define BOOST_JOIN( X, Y ) BOOST_DO_JOIN( X, Y )
|
|
#define BOOST_DO_JOIN( X, Y ) BOOST_DO_JOIN2(X,Y)
|
|
#define BOOST_DO_JOIN2( X, Y ) X##Y
|
|
|
|
//
|
|
// Set some default values for compiler/library/platform names.
|
|
// These are for debugging config setup only:
|
|
//
|
|
# ifndef BOOST_COMPILER
|
|
# define BOOST_COMPILER "Unknown ISO C++ Compiler"
|
|
# endif
|
|
# ifndef BOOST_STDLIB
|
|
# define BOOST_STDLIB "Unknown ISO standard library"
|
|
# endif
|
|
# ifndef BOOST_PLATFORM
|
|
# if defined(unix) || defined(__unix) || defined(_XOPEN_SOURCE) \
|
|
|| defined(_POSIX_SOURCE)
|
|
# define BOOST_PLATFORM "Generic Unix"
|
|
# else
|
|
# define BOOST_PLATFORM "Unknown"
|
|
# endif
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|