TLA Line data Source code
1 : //
2 : // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
3 : //
4 : // Distributed under the Boost Software License, Version 1.0. (See accompanying
5 : // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 : //
7 : // Official repository: https://github.com/boostorg/json
8 : //
9 :
10 : #ifndef BOOST_JSON_DETAIL_CONFIG_HPP
11 : #define BOOST_JSON_DETAIL_CONFIG_HPP
12 :
13 : #include <boost/config.hpp>
14 : #include <boost/config/pragma_message.hpp>
15 : #include <boost/assert.hpp>
16 : #include <boost/throw_exception.hpp>
17 : #include <cstdint>
18 : #include <type_traits>
19 : #include <utility>
20 :
21 : // detect 32/64 bit
22 : #if UINTPTR_MAX == UINT64_MAX
23 : # define BOOST_JSON_ARCH 64
24 : #elif UINTPTR_MAX == UINT32_MAX
25 : # define BOOST_JSON_ARCH 32
26 : #else
27 : # error Unknown or unsupported architecture, please open an issue
28 : #endif
29 :
30 : #ifndef BOOST_JSON_REQUIRE_CONST_INIT
31 : # define BOOST_JSON_REQUIRE_CONST_INIT
32 : # if __cpp_constinit >= 201907L
33 : # undef BOOST_JSON_REQUIRE_CONST_INIT
34 : # define BOOST_JSON_REQUIRE_CONST_INIT constinit
35 : # elif defined(__clang__) && defined(__has_cpp_attribute)
36 : # if __has_cpp_attribute(clang::require_constant_initialization)
37 : # undef BOOST_JSON_REQUIRE_CONST_INIT
38 : # define BOOST_JSON_REQUIRE_CONST_INIT [[clang::require_constant_initialization]]
39 : # endif
40 : # endif
41 : #endif
42 :
43 : #ifndef BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
44 : // clang, but not clang-cl
45 : # if defined(__clang__) && !defined(_MSC_VER) && defined(__has_cpp_attribute)
46 : # if __has_cpp_attribute(clang::no_destroy)
47 : # define BOOST_JSON_ATTRIBUTE_NO_DESTROY [[clang::no_destroy]]
48 : # else
49 : # define BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
50 : # endif
51 : # else
52 : # define BOOST_JSON_NO_ATTRIBUTE_NO_DESTROY
53 : # endif
54 : #endif
55 :
56 : #if ! defined(BOOST_JSON_NO_SSE2) && \
57 : ! defined(BOOST_JSON_USE_SSE2)
58 : # if (defined(_M_IX86) && _M_IX86_FP == 2) || \
59 : defined(_M_X64) || defined(__SSE2__)
60 : # define BOOST_JSON_USE_SSE2
61 : # endif
62 : #endif
63 :
64 : #if defined(BOOST_JSON_DOCS)
65 : # define BOOST_JSON_DECL
66 : #else
67 : # if (defined(BOOST_JSON_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_JSON_STATIC_LINK)
68 : # if defined(BOOST_JSON_SOURCE)
69 : # define BOOST_JSON_DECL BOOST_SYMBOL_EXPORT
70 : # else
71 : # define BOOST_JSON_DECL BOOST_SYMBOL_IMPORT
72 : # endif
73 : # endif // shared lib
74 : # ifndef BOOST_JSON_DECL
75 : # define BOOST_JSON_DECL
76 : # endif
77 : # if !defined(BOOST_JSON_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_JSON_NO_LIB)
78 : # define BOOST_LIB_NAME boost_json
79 : # if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_JSON_DYN_LINK)
80 : # define BOOST_DYN_LINK
81 : # endif
82 : # include <boost/config/auto_link.hpp>
83 : # endif
84 : #endif
85 :
86 : #ifndef BOOST_JSON_LIKELY
87 : # define BOOST_JSON_LIKELY(x) BOOST_LIKELY( !!(x) )
88 : #endif
89 :
90 : #ifndef BOOST_JSON_UNLIKELY
91 : # define BOOST_JSON_UNLIKELY(x) BOOST_UNLIKELY( !!(x) )
92 : #endif
93 :
94 : #ifndef BOOST_JSON_UNREACHABLE
95 : # ifdef _MSC_VER
96 : # define BOOST_JSON_UNREACHABLE() __assume(0)
97 : # elif defined(__GNUC__) || defined(__clang__)
98 : # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
99 : # elif defined(__has_builtin)
100 : # if __has_builtin(__builtin_unreachable)
101 : # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
102 : # endif
103 : # else
104 : # define BOOST_JSON_UNREACHABLE() static_cast<void>(0)
105 : # endif
106 : #endif
107 :
108 : #ifndef BOOST_JSON_ASSUME
109 : # define BOOST_JSON_ASSUME(x) (!!(x) ? void() : BOOST_JSON_UNREACHABLE())
110 : # ifdef _MSC_VER
111 : # undef BOOST_JSON_ASSUME
112 : # define BOOST_JSON_ASSUME(x) __assume(!!(x))
113 : # elif defined(__has_builtin)
114 : # if __has_builtin(__builtin_assume)
115 : # undef BOOST_JSON_ASSUME
116 : # define BOOST_JSON_ASSUME(x) __builtin_assume(!!(x))
117 : # endif
118 : # endif
119 : #endif
120 :
121 : // older versions of msvc and clang don't always
122 : // constant initialize when they are supposed to
123 : #ifndef BOOST_JSON_WEAK_CONSTINIT
124 : # if defined(_MSC_VER) && ! defined(__clang__) && _MSC_VER < 1920
125 : # define BOOST_JSON_WEAK_CONSTINIT
126 : # elif defined(__clang__) && __clang_major__ < 4
127 : # define BOOST_JSON_WEAK_CONSTINIT
128 : # endif
129 : #endif
130 :
131 : // These macros are private, for tests, do not change
132 : // them or else previously built libraries won't match.
133 : #ifndef BOOST_JSON_MAX_STRING_SIZE
134 : # define BOOST_JSON_NO_MAX_STRING_SIZE
135 : # define BOOST_JSON_MAX_STRING_SIZE 0x7ffffffe
136 : #endif
137 : #ifndef BOOST_JSON_MAX_STRUCTURED_SIZE
138 : # define BOOST_JSON_NO_MAX_STRUCTURED_SIZE
139 : # define BOOST_JSON_MAX_STRUCTURED_SIZE 0x7ffffffe
140 : #endif
141 : #ifndef BOOST_JSON_STACK_BUFFER_SIZE
142 : # define BOOST_JSON_NO_STACK_BUFFER_SIZE
143 : # if defined(__i386__) || defined(__x86_64__) || \
144 : defined(_M_IX86) || defined(_M_X64)
145 : # define BOOST_JSON_STACK_BUFFER_SIZE 4096
146 : # else
147 : // If we are not on Intel, then assume we are on
148 : // embedded and use a smaller stack size. If this
149 : // is not suitable, the user can define the macro
150 : // themselves when building the library or including
151 : // src.hpp.
152 : # define BOOST_JSON_STACK_BUFFER_SIZE 256
153 : # endif
154 : #endif
155 :
156 : #if defined(__cpp_constinit) && __cpp_constinit >= 201907L
157 : # define BOOST_JSON_CONSTINIT constinit
158 : #elif defined(__has_cpp_attribute) && defined(__clang__)
159 : # if __has_cpp_attribute(clang::require_constant_initialization)
160 : # define BOOST_JSON_CONSTINIT [[clang::require_constant_initialization]]
161 : # endif
162 : #elif defined(__GNUC__) && (__GNUC__ >= 10)
163 : # define BOOST_JSON_CONSTINIT __constinit
164 : #endif
165 : #ifndef BOOST_JSON_CONSTINIT
166 : # define BOOST_JSON_CONSTINIT
167 : #endif
168 :
169 : namespace boost {
170 : namespace json {
171 : namespace detail {
172 :
173 : template<class...>
174 : struct make_void
175 : {
176 : using type =void;
177 : };
178 :
179 : template<class... Ts>
180 : using void_t = typename
181 : make_void<Ts...>::type;
182 :
183 : template<class T>
184 : using remove_cvref = typename
185 : std::remove_cv<typename
186 : std::remove_reference<T>::type>::type;
187 :
188 : template<class T, class U>
189 HIT 25058792 : T exchange(T& t, U u) noexcept
190 : {
191 25058792 : T v = std::move(t);
192 25058792 : t = std::move(u);
193 25058792 : return v;
194 : }
195 :
196 : /* This is a derivative work, original copyright:
197 :
198 : Copyright Eric Niebler 2013-present
199 :
200 : Use, modification and distribution is subject to the
201 : Boost Software License, Version 1.0. (See accompanying
202 : file LICENSE_1_0.txt or copy at
203 : http://www.boost.org/LICENSE_1_0.txt)
204 :
205 : Project home: https://github.com/ericniebler/range-v3
206 : */
207 : template<typename T>
208 : struct static_const
209 : {
210 : static constexpr T value {};
211 : };
212 : template<typename T>
213 : constexpr T static_const<T>::value;
214 :
215 : #define BOOST_JSON_INLINE_VARIABLE(name, type) \
216 : namespace { constexpr auto& name = \
217 : ::boost::json::detail::static_const<type>::value; \
218 : } struct _unused_ ## name ## _semicolon_bait_
219 :
220 : } // detail
221 : } // namespace json
222 : } // namespace boost
223 :
224 : #ifndef BOOST_JSON_ALLOW_DEPRECATED
225 : # ifdef BOOST_ALLOW_DEPRECATED
226 : # define BOOST_JSON_ALLOW_DEPRECATED
227 : # endif
228 : #endif
229 :
230 : #if defined(BOOST_GCC) && BOOST_GCC < 50000 && !defined(BOOST_JSON_ALLOW_DEPRECATED)
231 : # pragma GCC warning "Support for GCC versions below 5.0 is deprecated and will stop in Boost 1.88.0. To suppress this message define macro BOOST_JSON_ALLOW_DEPRECATED."
232 : #endif
233 :
234 : #ifndef BOOST_JSON_ALLOW_DEPRECATED
235 : # define BOOST_JSON_DEPRECATED(x) BOOST_DEPRECATED(x)
236 : #else
237 : # define BOOST_JSON_DEPRECATED(x)
238 : #endif
239 :
240 : #ifndef BOOST_ALL_NO_EMBEDDED_GDB_SCRIPTS
241 : #include <boost/json/detail/gdb_printers.hpp>
242 : #endif
243 :
244 : #endif
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