boost/filesystem/config.hpp

0001 //  boost/filesystem/v3/config.hpp  ----------------------------------------------------//
0002
0003 //  Copyright Beman Dawes 2003
0004 //  Copyright Andrey Semashev 2021-2023
0005
0006 //  Distributed under the Boost Software License, Version 1.0.
0007 //  See http://www.boost.org/LICENSE_1_0.txt
0008
0009 //  Library home page: http://www.boost.org/libs/filesystem
0010
0011 //--------------------------------------------------------------------------------------//
0012
0013 #ifndef BOOST_FILESYSTEM_CONFIG_HPP
0014 #define BOOST_FILESYSTEM_CONFIG_HPP
0015
0016 // This header implements separate compilation features as described in
0017 // http://www.boost.org/more/separate_compilation.html
0018
0019 #include <boost/config.hpp>
0020 #include <boost/system/api_config.hpp> // for BOOST_POSIX_API or BOOST_WINDOWS_API
0021 #include <boost/detail/workaround.hpp>
0022
0023 #if defined(BOOST_FILESYSTEM_VERSION) && BOOST_FILESYSTEM_VERSION != 3 && BOOST_FILESYSTEM_VERSION != 4
0024 #error Compiling Boost.Filesystem file with BOOST_FILESYSTEM_VERSION defined != 3 or 4
0025 #endif
0026
0027 #if defined(BOOST_FILESYSTEM_SOURCE)
0028 #undef BOOST_FILESYSTEM_VERSION
0029 #define BOOST_FILESYSTEM_VERSION 4
0030 #elif !defined(BOOST_FILESYSTEM_VERSION)
0031 #define BOOST_FILESYSTEM_VERSION 3
0032 #endif
0033
0034 #define BOOST_FILESYSTEM_VERSIONED_SYM(sym) BOOST_JOIN(sym, BOOST_JOIN(_v, BOOST_FILESYSTEM_VERSION))
0035 #define BOOST_FILESYSTEM_VERSION_NAMESPACE BOOST_JOIN(v, BOOST_FILESYSTEM_VERSION)
0036
0037 #if BOOST_FILESYSTEM_VERSION == 4
0038 #undef BOOST_FILESYSTEM_DEPRECATED
0039 #if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
0040 #define BOOST_FILESYSTEM_NO_DEPRECATED
0041 #endif
0042 #endif
0043
0044 #define BOOST_FILESYSTEM_I18N // aid users wishing to compile several versions
0045
0046 //  BOOST_FILESYSTEM_DEPRECATED needed for source compiles -----------------------------//
0047
0048 #ifdef BOOST_FILESYSTEM_SOURCE
0049 #define BOOST_FILESYSTEM_DEPRECATED
0050 #undef BOOST_FILESYSTEM_NO_DEPRECATED // fixes #9454, src bld fails if NO_DEP defined
0051 #endif
0052
0053 #if defined(BOOST_FILESYSTEM_DEPRECATED) && defined(BOOST_FILESYSTEM_NO_DEPRECATED)
0054 #error Both BOOST_FILESYSTEM_DEPRECATED and BOOST_FILESYSTEM_NO_DEPRECATED are defined
0055 #endif
0056
0057 //  throw an exception  ----------------------------------------------------------------//
0058 //
0059 //  Exceptions were originally thrown via boost::throw_exception().
0060 //  As throw_exception() became more complex, it caused user error reporting
0061 //  to be harder to interpret, since the exception reported became much more complex.
0062 //  The immediate fix was to throw directly, wrapped in a macro to make any later change
0063 //  easier.
0064
0065 #define BOOST_FILESYSTEM_THROW(EX) throw EX
0066
0067 #if defined(BOOST_NO_STD_WSTRING)
0068 #error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
0069 #endif
0070
0071 // Deprecated symbols markup -----------------------------------------------------------//
0072
0073 #if !defined(BOOST_FILESYSTEM_ALLOW_DEPRECATED)
0074 #define BOOST_FILESYSTEM_DETAIL_DEPRECATED(msg) BOOST_DEPRECATED(msg)
0075 #else
0076 #define BOOST_FILESYSTEM_DETAIL_DEPRECATED(msg)
0077 #endif
0078
0079
0080 //  This header implements separate compilation features as described in
0081 //  http://www.boost.org/more/separate_compilation.html
0082
0083 //  normalize macros  ------------------------------------------------------------------//
0084
0085 #if !defined(BOOST_FILESYSTEM_DYN_LINK) && !defined(BOOST_FILESYSTEM_STATIC_LINK) && !defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_ALL_STATIC_LINK)
0086 #define BOOST_FILESYSTEM_STATIC_LINK
0087 #endif
0088
0089 #if defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_FILESYSTEM_DYN_LINK)
0090 #define BOOST_FILESYSTEM_DYN_LINK
0091 #elif defined(BOOST_ALL_STATIC_LINK) && !defined(BOOST_FILESYSTEM_STATIC_LINK)
0092 #define BOOST_FILESYSTEM_STATIC_LINK
0093 #endif
0094
0095 #if defined(BOOST_FILESYSTEM_DYN_LINK) && defined(BOOST_FILESYSTEM_STATIC_LINK)
0096 #error Must not define both BOOST_FILESYSTEM_DYN_LINK and BOOST_FILESYSTEM_STATIC_LINK
0097 #endif
0098
0099 #if defined(BOOST_ALL_NO_LIB) && !defined(BOOST_FILESYSTEM_NO_LIB)
0100 #define BOOST_FILESYSTEM_NO_LIB
0101 #endif
0102
0103 //  enable dynamic linking  ------------------------------------------------------------//
0104
0105 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FILESYSTEM_DYN_LINK)
0106 #if defined(BOOST_FILESYSTEM_SOURCE)
0107 #define BOOST_FILESYSTEM_DECL BOOST_SYMBOL_EXPORT
0108 #else
0109 #define BOOST_FILESYSTEM_DECL BOOST_SYMBOL_IMPORT
0110 #endif
0111 #else
0112 #define BOOST_FILESYSTEM_DECL
0113 #endif
0114
0115 //  enable automatic library variant selection  ----------------------------------------//
0116
0117 #if !defined(BOOST_FILESYSTEM_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_FILESYSTEM_NO_LIB)
0118 //
0119 // Set the name of our library, this will get undef'ed by auto_link.hpp
0120 // once it's done with it:
0121 //
0122 #define BOOST_LIB_NAME boost_filesystem
0123 //
0124 // If we're importing code from a dll, then tell auto_link.hpp about it:
0125 //
0126 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_FILESYSTEM_DYN_LINK)
0127 #define BOOST_DYN_LINK
0128 #endif
0129 //
0130 // And include the header that does the work:
0131 //
0132 #include <boost/config/auto_link.hpp>
0133 #endif // auto-linking disabled
0134
0135 #if defined(BOOST_NO_CXX11_RVALUE_REFERENCES) ||\
0136     (defined(BOOST_LIBSTDCXX_VERSION) && (BOOST_LIBSTDCXX_VERSION < 50000)) ||\
0137     (defined(BOOST_MSSTL_VERSION) && (BOOST_MSSTL_VERSION < 100))
0138 // Indicates that the standard library fstream types do not support move constructor/assignment.
0139 #define BOOST_FILESYSTEM_DETAIL_NO_CXX11_MOVABLE_FSTREAMS
0140 #endif
0141
0142 #if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW) && \
0143     (\
0144         (defined(BOOST_DINKUMWARE_STDLIB) && defined(_HAS_CXX23) && (_HAS_CXX23 != 0) && defined(_MSVC_STL_UPDATE) && (_MSVC_STL_UPDATE < 202208L)) || \
0145         (defined(BOOST_LIBSTDCXX_VERSION) && (BOOST_LIBSTDCXX_VERSION < 110400 || (BOOST_LIBSTDCXX_VERSION >= 120000 && BOOST_LIBSTDCXX_VERSION < 120200)) && (BOOST_CXX_VERSION > 202002L))\
0146     )
0147 // Indicates that std::string_view has implicit constructor from ranges that was present in an early C++23 draft (N4892).
0148 // This was later rectified by marking the constructor explicit (https://wg21.link/p2499). Unfortunately, some compilers
0149 // were released with the constructor being implicit.
0150 #define BOOST_FILESYSTEM_DETAIL_CXX23_STRING_VIEW_HAS_IMPLICIT_RANGE_CTOR
0151 #endif
0152
0153 #endif // BOOST_FILESYSTEM_CONFIG_HPP