GCC Code Coverage Report

Directory: libs/json/include/boost/json/
File: detail/config.hpp
Date: 2026-01-02 17:31:41
Exec Total Coverage
Lines: 4 4 100.0%
Functions: 1 1 100.0%
Branches: 0 0 -%
Line Branch Exec Source
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_DESTROY
44 # if defined(__clang__) && defined(__has_cpp_attribute)
45 # if __has_cpp_attribute(clang::no_destroy)
46 # define BOOST_JSON_NO_DESTROY [[clang::no_destroy]]
47 # endif
48 # endif
49 #endif
50
51 #if ! defined(BOOST_JSON_NO_SSE2) && \
52 ! defined(BOOST_JSON_USE_SSE2)
53 # if (defined(_M_IX86) && _M_IX86_FP == 2) || \
54 defined(_M_X64) || defined(__SSE2__)
55 # define BOOST_JSON_USE_SSE2
56 # endif
57 #endif
58
59 #if defined(BOOST_JSON_DOCS)
60 # define BOOST_JSON_DECL
61 #else
62 # if (defined(BOOST_JSON_DYN_LINK) || defined(BOOST_ALL_DYN_LINK)) && !defined(BOOST_JSON_STATIC_LINK)
63 # if defined(BOOST_JSON_SOURCE)
64 # define BOOST_JSON_DECL BOOST_SYMBOL_EXPORT
65 # else
66 # define BOOST_JSON_DECL BOOST_SYMBOL_IMPORT
67 # endif
68 # endif // shared lib
69 # ifndef BOOST_JSON_DECL
70 # define BOOST_JSON_DECL
71 # endif
72 # if !defined(BOOST_JSON_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_JSON_NO_LIB)
73 # define BOOST_LIB_NAME boost_json
74 # if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_JSON_DYN_LINK)
75 # define BOOST_DYN_LINK
76 # endif
77 # include <boost/config/auto_link.hpp>
78 # endif
79 #endif
80
81 #ifndef BOOST_JSON_LIKELY
82 # define BOOST_JSON_LIKELY(x) BOOST_LIKELY( !!(x) )
83 #endif
84
85 #ifndef BOOST_JSON_UNLIKELY
86 # define BOOST_JSON_UNLIKELY(x) BOOST_UNLIKELY( !!(x) )
87 #endif
88
89 #ifndef BOOST_JSON_UNREACHABLE
90 # ifdef _MSC_VER
91 # define BOOST_JSON_UNREACHABLE() __assume(0)
92 # elif defined(__GNUC__) || defined(__clang__)
93 # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
94 # elif defined(__has_builtin)
95 # if __has_builtin(__builtin_unreachable)
96 # define BOOST_JSON_UNREACHABLE() __builtin_unreachable()
97 # endif
98 # else
99 # define BOOST_JSON_UNREACHABLE() static_cast<void>(0)
100 # endif
101 #endif
102
103 #ifndef BOOST_JSON_ASSUME
104 # define BOOST_JSON_ASSUME(x) (!!(x) ? void() : BOOST_JSON_UNREACHABLE())
105 # ifdef _MSC_VER
106 # undef BOOST_JSON_ASSUME
107 # define BOOST_JSON_ASSUME(x) __assume(!!(x))
108 # elif defined(__has_builtin)
109 # if __has_builtin(__builtin_assume)
110 # undef BOOST_JSON_ASSUME
111 # define BOOST_JSON_ASSUME(x) __builtin_assume(!!(x))
112 # endif
113 # endif
114 #endif
115
116 // older versions of msvc and clang don't always
117 // constant initialize when they are supposed to
118 #ifndef BOOST_JSON_WEAK_CONSTINIT
119 # if defined(_MSC_VER) && ! defined(__clang__) && _MSC_VER < 1920
120 # define BOOST_JSON_WEAK_CONSTINIT
121 # elif defined(__clang__) && __clang_major__ < 4
122 # define BOOST_JSON_WEAK_CONSTINIT
123 # endif
124 #endif
125
126 // These macros are private, for tests, do not change
127 // them or else previously built libraries won't match.
128 #ifndef BOOST_JSON_MAX_STRING_SIZE
129 # define BOOST_JSON_NO_MAX_STRING_SIZE
130 # define BOOST_JSON_MAX_STRING_SIZE 0x7ffffffe
131 #endif
132 #ifndef BOOST_JSON_MAX_STRUCTURED_SIZE
133 # define BOOST_JSON_NO_MAX_STRUCTURED_SIZE
134 # define BOOST_JSON_MAX_STRUCTURED_SIZE 0x7ffffffe
135 #endif
136 #ifndef BOOST_JSON_STACK_BUFFER_SIZE
137 # define BOOST_JSON_NO_STACK_BUFFER_SIZE
138 # if defined(__i386__) || defined(__x86_64__) || \
139 defined(_M_IX86) || defined(_M_X64)
140 # define BOOST_JSON_STACK_BUFFER_SIZE 4096
141 # else
142 // If we are not on Intel, then assume we are on
143 // embedded and use a smaller stack size. If this
144 // is not suitable, the user can define the macro
145 // themselves when building the library or including
146 // src.hpp.
147 # define BOOST_JSON_STACK_BUFFER_SIZE 256
148 # endif
149 #endif
150
151 #if defined(__cpp_constinit) && __cpp_constinit >= 201907L
152 # define BOOST_JSON_CONSTINIT constinit
153 #elif defined(__has_cpp_attribute) && defined(__clang__)
154 # if __has_cpp_attribute(clang::require_constant_initialization)
155 # define BOOST_JSON_CONSTINIT [[clang::require_constant_initialization]]
156 # endif
157 #elif defined(__GNUC__) && (__GNUC__ >= 10)
158 # define BOOST_JSON_CONSTINIT __constinit
159 #endif
160 #ifndef BOOST_JSON_CONSTINIT
161 # define BOOST_JSON_CONSTINIT
162 #endif
163
164 namespace boost {
165 namespace json {
166 namespace detail {
167
168 template<class...>
169 struct make_void
170 {
171 using type =void;
172 };
173
174 template<class... Ts>
175 using void_t = typename
176 make_void<Ts...>::type;
177
178 template<class T>
179 using remove_cvref = typename
180 std::remove_cv<typename
181 std::remove_reference<T>::type>::type;
182
183 template<class T, class U>
184 25056816 T exchange(T& t, U u) noexcept
185 {
186 25056816 T v = std::move(t);
187 25056816 t = std::move(u);
188 25056816 return v;
189 }
190
191 /* This is a derivative work, original copyright:
192
193 Copyright Eric Niebler 2013-present
194
195 Use, modification and distribution is subject to the
196 Boost Software License, Version 1.0. (See accompanying
197 file LICENSE_1_0.txt or copy at
198 http://www.boost.org/LICENSE_1_0.txt)
199
200 Project home: https://github.com/ericniebler/range-v3
201 */
202 template<typename T>
203 struct static_const
204 {
205 static constexpr T value {};
206 };
207 template<typename T>
208 constexpr T static_const<T>::value;
209
210 #define BOOST_JSON_INLINE_VARIABLE(name, type) \
211 namespace { constexpr auto& name = \
212 ::boost::json::detail::static_const<type>::value; \
213 } struct _unused_ ## name ## _semicolon_bait_
214
215 } // detail
216 } // namespace json
217 } // namespace boost
218
219 #ifndef BOOST_JSON_ALLOW_DEPRECATED
220 # ifdef BOOST_ALLOW_DEPRECATED
221 # define BOOST_JSON_ALLOW_DEPRECATED
222 # endif
223 #endif
224
225 #if defined(BOOST_GCC) && BOOST_GCC < 50000 && !defined(BOOST_JSON_ALLOW_DEPRECATED)
226 # 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."
227 #endif
228
229 #ifndef BOOST_JSON_ALLOW_DEPRECATED
230 # define BOOST_JSON_DEPRECATED(x) BOOST_DEPRECATED(x)
231 #else
232 # define BOOST_JSON_DEPRECATED(x)
233 #endif
234
235 #ifndef BOOST_ALL_NO_EMBEDDED_GDB_SCRIPTS
236 #include <boost/json/detail/gdb_printers.hpp>
237 #endif
238
239 #endif
240