ceph/src/boost/boost/outcome/try.hpp

   1 /* Try operation macros
   2 (C) 2017-2020 Niall Douglas <http://www.nedproductions.biz/> (20 commits)
   3 File Created: July 2017
   4
   5
   6 Boost Software License - Version 1.0 - August 17th, 2003
   7
   8 Permission is hereby granted, free of charge, to any person or organization
   9 obtaining a copy of the software and accompanying documentation covered by
  10 this license (the "Software") to use, reproduce, display, distribute,
  11 execute, and transmit the Software, and to prepare derivative works of the
  12 Software, and to permit third-parties to whom the Software is furnished to
  13 do so, all subject to the following:
  14
  15 The copyright notices in the Software and this entire statement, including
  16 the above license grant, this restriction and the following disclaimer,
  17 must be included in all copies of the Software, in whole or in part, and
  18 all derivative works of the Software, unless such copies or derivative
  19 works are solely in the form of machine-executable object code generated by
  20 a source language processor.
  21
  22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24 FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
  25 SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
  26 FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
  27 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  28 DEALINGS IN THE SOFTWARE.
  29 */
  30
  31 #ifndef BOOST_OUTCOME_TRY_HPP
  32 #define BOOST_OUTCOME_TRY_HPP
  33
  34 #include "success_failure.hpp"
  35
  36 BOOST_OUTCOME_V2_NAMESPACE_BEGIN
  37
  38 namespace detail
  39 {
  40   struct has_value_overload
  41   {
  42   };
  43   struct as_failure_overload
  44   {
  45   };
  46   struct assume_error_overload
  47   {
  48   };
  49   struct error_overload
  50   {
  51   };
  52   struct assume_value_overload
  53   {
  54   };
  55   struct value_overload
  56   {
  57   };
  58   //#ifdef __APPLE__
  59   //  BOOST_OUTCOME_TEMPLATE(class T, class R = decltype(std::declval<T>()._xcode_workaround_as_failure()))
  60   //#else
  61   BOOST_OUTCOME_TEMPLATE(class T, class R = decltype(std::declval<T>().as_failure()))
  62   //#endif
  63   BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(BOOST_OUTCOME_V2_NAMESPACE::is_failure_type<R>))
  64   constexpr inline bool has_as_failure(int /*unused */) { return true; }
  65   template <class T> constexpr inline bool has_as_failure(...) { return false; }
  66   BOOST_OUTCOME_TEMPLATE(class T)
  67   BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TEXPR(std::declval<T>().assume_error()))
  68   constexpr inline bool has_assume_error(int /*unused */) { return true; }
  69   template <class T> constexpr inline bool has_assume_error(...) { return false; }
  70   BOOST_OUTCOME_TEMPLATE(class T)
  71   BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TEXPR(std::declval<T>().error()))
  72   constexpr inline bool has_error(int /*unused */) { return true; }
  73   template <class T> constexpr inline bool has_error(...) { return false; }
  74   BOOST_OUTCOME_TEMPLATE(class T)
  75   BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TEXPR(std::declval<T>().assume_value()))
  76   constexpr inline bool has_assume_value(int /*unused */) { return true; }
  77   template <class T> constexpr inline bool has_assume_value(...) { return false; }
  78   BOOST_OUTCOME_TEMPLATE(class T)
  79   BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TEXPR(std::declval<T>().value()))
  80   constexpr inline bool has_value(int /*unused */) { return true; }
  81   template <class T> constexpr inline bool has_value(...) { return false; }
  82 }  // namespace detail
  83
  84 /*! AWAITING HUGO JSON CONVERSION TOOL
  85 SIGNATURE NOT RECOGNISED
  86 */
  87 BOOST_OUTCOME_TEMPLATE(class T)
  88 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TEXPR(std::declval<T>().has_value()))
  89 constexpr inline bool try_operation_has_value(T &&v, detail::has_value_overload = {})
  90 {
  91   return v.has_value();
  92 }
  93
  94 /*! AWAITING HUGO JSON CONVERSION TOOL
  95 SIGNATURE NOT RECOGNISED
  96 */
  97 BOOST_OUTCOME_TEMPLATE(class T)
  98 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(detail::has_as_failure<T>(5)))
  99 constexpr inline decltype(auto) try_operation_return_as(T &&v, detail::as_failure_overload = {})
 100 {
 101   return static_cast<T &&>(v).as_failure();
 102 }
 103 /*! AWAITING HUGO JSON CONVERSION TOOL
 104 SIGNATURE NOT RECOGNISED
 105 */
 106 BOOST_OUTCOME_TEMPLATE(class T)
 107 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(!detail::has_as_failure<T>(5) && detail::has_assume_error<T>(5)))
 108 constexpr inline decltype(auto) try_operation_return_as(T &&v, detail::assume_error_overload = {})
 109 {
 110   return failure(static_cast<T &&>(v).assume_error());
 111 }
 112 /*! AWAITING HUGO JSON CONVERSION TOOL
 113 SIGNATURE NOT RECOGNISED
 114 */
 115 BOOST_OUTCOME_TEMPLATE(class T)
 116 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(!detail::has_as_failure<T>(5) && !detail::has_assume_error<T>(5) && detail::has_error<T>(5)))
 117 constexpr inline decltype(auto) try_operation_return_as(T &&v, detail::error_overload = {})
 118 {
 119   return failure(static_cast<T &&>(v).error());
 120 }
 121
 122 /*! AWAITING HUGO JSON CONVERSION TOOL
 123 SIGNATURE NOT RECOGNISED
 124 */
 125 BOOST_OUTCOME_TEMPLATE(class T)
 126 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(detail::has_assume_value<T>(5)))
 127 constexpr inline decltype(auto) try_operation_extract_value(T &&v, detail::assume_value_overload = {})
 128 {
 129   return static_cast<T &&>(v).assume_value();
 130 }
 131 /*! AWAITING HUGO JSON CONVERSION TOOL
 132 SIGNATURE NOT RECOGNISED
 133 */
 134 BOOST_OUTCOME_TEMPLATE(class T)
 135 BOOST_OUTCOME_TREQUIRES(BOOST_OUTCOME_TPRED(!detail::has_assume_value<T>(5) && detail::has_value<T>(5)))
 136 constexpr inline decltype(auto) try_operation_extract_value(T &&v, detail::value_overload = {})
 137 {
 138   return static_cast<T &&>(v).value();
 139 }
 140
 141 BOOST_OUTCOME_V2_NAMESPACE_END
 142
 143 #if !defined(__clang__) && defined(__GNUC__) && __GNUC__ >= 8
 144 #pragma GCC diagnostic push
 145 #pragma GCC diagnostic ignored "-Wparentheses"
 146 #endif
 147
 148
 149 #define BOOST_OUTCOME_TRY_GLUE2(x, y) x##y
 150 #define BOOST_OUTCOME_TRY_GLUE(x, y) BOOST_OUTCOME_TRY_GLUE2(x, y)
 151 #define BOOST_OUTCOME_TRY_UNIQUE_NAME BOOST_OUTCOME_TRY_GLUE(_outcome_try_unique_name_temporary, __COUNTER__)
 152
 153 #define BOOST_OUTCOME_TRY_RETURN_ARG_COUNT(_1_, _2_, _3_, _4_, _5_, _6_, _7_, _8_, count, ...) count
 154 #define BOOST_OUTCOME_TRY_EXPAND_ARGS(args) BOOST_OUTCOME_TRY_RETURN_ARG_COUNT args
 155 #define BOOST_OUTCOME_TRY_COUNT_ARGS_MAX8(...) BOOST_OUTCOME_TRY_EXPAND_ARGS((__VA_ARGS__, 8, 7, 6, 5, 4, 3, 2, 1, 0))
 156 #define BOOST_OUTCOME_TRY_OVERLOAD_MACRO2(name, count) name##count
 157 #define BOOST_OUTCOME_TRY_OVERLOAD_MACRO1(name, count) BOOST_OUTCOME_TRY_OVERLOAD_MACRO2(name, count)
 158 #define BOOST_OUTCOME_TRY_OVERLOAD_MACRO(name, count) BOOST_OUTCOME_TRY_OVERLOAD_MACRO1(name, count)
 159 #define BOOST_OUTCOME_TRY_OVERLOAD_GLUE(x, y) x y
 160 #define BOOST_OUTCOME_TRY_CALL_OVERLOAD(name, ...)                                                                                                                   \
 161   BOOST_OUTCOME_TRY_OVERLOAD_GLUE(BOOST_OUTCOME_TRY_OVERLOAD_MACRO(name, BOOST_OUTCOME_TRY_COUNT_ARGS_MAX8(__VA_ARGS__)), (__VA_ARGS__))
 162
 163 #ifndef BOOST_OUTCOME_TRY_LIKELY
 164 #if defined(__clang__) || defined(__GNUC__)
 165 #define BOOST_OUTCOME_TRY_LIKELY(expr) (__builtin_expect(!!(expr), true))
 166 #else
 167 #define BOOST_OUTCOME_TRY_LIKELY(expr) (expr)
 168 #endif
 169 #endif
 170
 171 // Use if(!expr); else as some compilers assume else clauses are always unlikely
 172 #define BOOST_OUTCOME_TRYV2_SUCCESS_LIKELY(unique, ...)                                                                                                              \
 173   auto &&unique = (__VA_ARGS__);                                                                                                                               \
 174   if(BOOST_OUTCOME_TRY_LIKELY(BOOST_OUTCOME_V2_NAMESPACE::try_operation_has_value(unique)))                                                                                \
 175     ;                                                                                                                                                          \
 176   else                                                                                                                                                         \
 177     return BOOST_OUTCOME_V2_NAMESPACE::try_operation_return_as(static_cast<decltype(unique) &&>(unique))
 178 #define BOOST_OUTCOME_TRY2_SUCCESS_LIKELY(unique, v, ...)                                                                                                            \
 179   BOOST_OUTCOME_TRYV2_SUCCESS_LIKELY(unique, __VA_ARGS__);                                                                                                           \
 180   v = BOOST_OUTCOME_V2_NAMESPACE::try_operation_extract_value(static_cast<decltype(unique) &&>(unique))
 181 #define BOOST_OUTCOME_TRYV2_FAILURE_LIKELY(unique, ...)                                                                                                              \
 182   auto &&unique = (__VA_ARGS__);                                                                                                                               \
 183   if(BOOST_OUTCOME_TRY_LIKELY(!BOOST_OUTCOME_V2_NAMESPACE::try_operation_has_value(unique)))                                                                               \
 184   return BOOST_OUTCOME_V2_NAMESPACE::try_operation_return_as(static_cast<decltype(unique) &&>(unique))
 185 #define BOOST_OUTCOME_TRY2_FAILURE_LIKELY(unique, v, ...)                                                                                                            \
 186   BOOST_OUTCOME_TRYV2_FAILURE_LIKELY(unique, __VA_ARGS__);                                                                                                           \
 187   v = BOOST_OUTCOME_V2_NAMESPACE::try_operation_extract_value(static_cast<decltype(unique) &&>(unique))
 188
 189 #define BOOST_OUTCOME_CO_TRYV2_SUCCESS_LIKELY(unique, ...)                                                                                                           \
 190   auto &&unique = (__VA_ARGS__);                                                                                                                               \
 191   if(BOOST_OUTCOME_TRY_LIKELY(BOOST_OUTCOME_V2_NAMESPACE::try_operation_has_value(unique)))                                                                                \
 192     ;                                                                                                                                                          \
 193   else                                                                                                                                                         \
 194     co_return BOOST_OUTCOME_V2_NAMESPACE::try_operation_return_as(static_cast<decltype(unique) &&>(unique))
 195 #define BOOST_OUTCOME_CO_TRY2_SUCCESS_LIKELY(unique, v, ...)                                                                                                         \
 196   BOOST_OUTCOME_CO_TRYV2_SUCCESS_LIKELY(unique, __VA_ARGS__);                                                                                                        \
 197   v = BOOST_OUTCOME_V2_NAMESPACE::try_operation_extract_value(static_cast<decltype(unique) &&>(unique))
 198 #define BOOST_OUTCOME_CO_TRYV2_FAILURE_LIKELY(unique, ...)                                                                                                           \
 199   auto &&unique = (__VA_ARGS__);                                                                                                                               \
 200   if(BOOST_OUTCOME_TRY_LIKELY(!BOOST_OUTCOME_V2_NAMESPACE::try_operation_has_value(unique)))                                                                               \
 201   co_return BOOST_OUTCOME_V2_NAMESPACE::try_operation_return_as(static_cast<decltype(unique) &&>(unique))
 202 #define BOOST_OUTCOME_CO_TRY2_FAILURE_LIKELY(unique, v, ...)                                                                                                         \
 203   BOOST_OUTCOME_CO_TRYV2_FAILURE_LIKELY(unique, __VA_ARGS__);                                                                                                        \
 204   v = BOOST_OUTCOME_V2_NAMESPACE::try_operation_extract_value(static_cast<decltype(unique) &&>(unique))
 205
 206 /*! AWAITING HUGO JSON CONVERSION TOOL
 207 SIGNATURE NOT RECOGNISED
 208 */
 209 #define BOOST_OUTCOME_TRYV(...) BOOST_OUTCOME_TRYV2_SUCCESS_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, __VA_ARGS__)
 210 /*! AWAITING HUGO JSON CONVERSION TOOL
 211 SIGNATURE NOT RECOGNISED
 212 */
 213 #define BOOST_OUTCOME_TRYV_FAILURE_LIKELY(...) BOOST_OUTCOME_TRYV2_FAILURE_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, __VA_ARGS__)
 214
 215 /*! AWAITING HUGO JSON CONVERSION TOOL
 216 SIGNATURE NOT RECOGNISED
 217 */
 218 #define BOOST_OUTCOME_CO_TRYV(...) BOOST_OUTCOME_CO_TRYV2_SUCCESS_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, __VA_ARGS__)
 219 /*! AWAITING HUGO JSON CONVERSION TOOL
 220 SIGNATURE NOT RECOGNISED
 221 */
 222 #define BOOST_OUTCOME_CO_TRYV_FAILURE_LIKELY(...) BOOST_OUTCOME_CO_TRYV2_FAILURE_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, __VA_ARGS__)
 223
 224 #if defined(__GNUC__) || defined(__clang__)
 225
 226 #define BOOST_OUTCOME_TRYX2(unique, retstmt, ...)                                                                                                                    \
 227   ({                                                                                                                                                           \
 228     auto &&unique = (__VA_ARGS__);                                                                                                                             \
 229     if(BOOST_OUTCOME_TRY_LIKELY(BOOST_OUTCOME_V2_NAMESPACE::try_operation_has_value(unique)))                                                                              \
 230       ;                                                                                                                                                        \
 231     else                                                                                                                                                       \
 232       retstmt BOOST_OUTCOME_V2_NAMESPACE::try_operation_return_as(static_cast<decltype(unique) &&>(unique));                                                         \
 233     BOOST_OUTCOME_V2_NAMESPACE::try_operation_extract_value(static_cast<decltype(unique) &&>(unique));                                                               \
 234   })
 235
 236 /*! AWAITING HUGO JSON CONVERSION TOOL
 237 SIGNATURE NOT RECOGNISED
 238 */
 239 #define BOOST_OUTCOME_TRYX(...) BOOST_OUTCOME_TRYX2(BOOST_OUTCOME_TRY_UNIQUE_NAME, return, __VA_ARGS__)
 240
 241 /*! AWAITING HUGO JSON CONVERSION TOOL
 242 SIGNATURE NOT RECOGNISED
 243 */
 244 #define BOOST_OUTCOME_CO_TRYX(...) BOOST_OUTCOME_TRYX2(BOOST_OUTCOME_TRY_UNIQUE_NAME, co_return, __VA_ARGS__)
 245 #endif
 246
 247 /*! AWAITING HUGO JSON CONVERSION TOOL
 248 SIGNATURE NOT RECOGNISED
 249 */
 250 #define BOOST_OUTCOME_TRYA(v, ...) BOOST_OUTCOME_TRY2_SUCCESS_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, auto &&v, __VA_ARGS__)
 251 /*! AWAITING HUGO JSON CONVERSION TOOL
 252 SIGNATURE NOT RECOGNISED
 253 */
 254 #define BOOST_OUTCOME_TRYA_FAILURE_LIKELY(v, ...) BOOST_OUTCOME_TRY2_FAILURE_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, auto &&v, __VA_ARGS__)
 255
 256 /*! AWAITING HUGO JSON CONVERSION TOOL
 257 SIGNATURE NOT RECOGNISED
 258 */
 259 #define BOOST_OUTCOME_CO_TRYA(v, ...) BOOST_OUTCOME_CO_TRY2_SUCCESS_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, auto &&v, __VA_ARGS__)
 260 /*! AWAITING HUGO JSON CONVERSION TOOL
 261 SIGNATURE NOT RECOGNISED
 262 */
 263 #define BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(v, ...) BOOST_OUTCOME_CO_TRY2_FAILURE_LIKELY(BOOST_OUTCOME_TRY_UNIQUE_NAME, auto &&v, __VA_ARGS__)
 264
 265
 266 #define BOOST_OUTCOME_TRY_INVOKE_TRY8(a, b, c, d, e, f, g, h) BOOST_OUTCOME_TRYA(a, b, c, d, e, f, g, h)
 267 #define BOOST_OUTCOME_TRY_INVOKE_TRY7(a, b, c, d, e, f, g) BOOST_OUTCOME_TRYA(a, b, c, d, e, f, g)
 268 #define BOOST_OUTCOME_TRY_INVOKE_TRY6(a, b, c, d, e, f) BOOST_OUTCOME_TRYA(a, b, c, d, e, f)
 269 #define BOOST_OUTCOME_TRY_INVOKE_TRY5(a, b, c, d, e) BOOST_OUTCOME_TRYA(a, b, c, d, e)
 270 #define BOOST_OUTCOME_TRY_INVOKE_TRY4(a, b, c, d) BOOST_OUTCOME_TRYA(a, b, c, d)
 271 #define BOOST_OUTCOME_TRY_INVOKE_TRY3(a, b, c) BOOST_OUTCOME_TRYA(a, b, c)
 272 #define BOOST_OUTCOME_TRY_INVOKE_TRY2(a, b) BOOST_OUTCOME_TRYA(a, b)
 273 #define BOOST_OUTCOME_TRY_INVOKE_TRY1(a) BOOST_OUTCOME_TRYV(a)
 274
 275 /*! AWAITING HUGO JSON CONVERSION TOOL
 276 SIGNATURE NOT RECOGNISED
 277 */
 278 #define BOOST_OUTCOME_TRY(...) BOOST_OUTCOME_TRY_CALL_OVERLOAD(BOOST_OUTCOME_TRY_INVOKE_TRY, __VA_ARGS__)
 279
 280 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY8(a, b, c, d, e, f, g, h) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c, d, e, f, g, h)
 281 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY7(a, b, c, d, e, f, g) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c, d, e, f, g)
 282 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY6(a, b, c, d, e, f) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c, d, e, f)
 283 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY5(a, b, c, d, e) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c, d, e)
 284 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY4(a, b, c, d) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c, d)
 285 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY3(a, b, c) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b, c)
 286 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY2(a, b) BOOST_OUTCOME_TRYA_FAILURE_LIKELY(a, b)
 287 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY1(a) BOOST_OUTCOME_TRYV_FAILURE_LIKELY(a)
 288 /*! AWAITING HUGO JSON CONVERSION TOOL
 289 SIGNATURE NOT RECOGNISED
 290 */
 291 #define BOOST_OUTCOME_TRY_FAILURE_LIKELY(...) BOOST_OUTCOME_TRY_CALL_OVERLOAD(BOOST_OUTCOME_TRY_FAILURE_LIKELY_INVOKE_TRY, __VA_ARGS__)
 292
 293 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY8(a, b, c, d, e, f, g, h) BOOST_OUTCOME_CO_TRYA(a, b, c, d, e, f, g, h)
 294 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY7(a, b, c, d, e, f, g) BOOST_OUTCOME_CO_TRYA(a, b, c, d, e, f, g)
 295 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY6(a, b, c, d, e, f) BOOST_OUTCOME_CO_TRYA(a, b, c, d, e, f)
 296 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY5(a, b, c, d, e) BOOST_OUTCOME_CO_TRYA(a, b, c, d, e)
 297 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY4(a, b, c, d) BOOST_OUTCOME_CO_TRYA(a, b, c, d)
 298 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY3(a, b, c) BOOST_OUTCOME_CO_TRYA(a, b, c)
 299 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY2(a, b) BOOST_OUTCOME_CO_TRYA(a, b)
 300 #define BOOST_OUTCOME_CO_TRY_INVOKE_TRY1(a) BOOST_OUTCOME_CO_TRYV(a)
 301 /*! AWAITING HUGO JSON CONVERSION TOOL
 302 SIGNATURE NOT RECOGNISED
 303 */
 304 #define BOOST_OUTCOME_CO_TRY(...) BOOST_OUTCOME_TRY_CALL_OVERLOAD(BOOST_OUTCOME_CO_TRY_INVOKE_TRY, __VA_ARGS__)
 305
 306 /*! AWAITING HUGO JSON CONVERSION TOOL
 307 SIGNATURE NOT RECOGNISED
 308 */
 309 #define BOOST_OUTCOME_TRY(...) BOOST_OUTCOME_TRY_CALL_OVERLOAD(BOOST_OUTCOME_TRY_INVOKE_TRY, __VA_ARGS__)
 310
 311 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY8(a, b, c, d, e, f, g, h) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c, d, e, f, g, h)
 312 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY7(a, b, c, d, e, f, g) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c, d, e, f, g)
 313 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY6(a, b, c, d, e, f) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c, d, e, f)
 314 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY5(a, b, c, d, e) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c, d, e)
 315 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY4(a, b, c, d) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c, d)
 316 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY3(a, b, c) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b, c)
 317 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY2(a, b) BOOST_OUTCOME_CO_TRYA_FAILURE_LIKELY(a, b)
 318 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY1(a) BOOST_OUTCOME_CO_TRYV_FAILURE_LIKELY(a)
 319 /*! AWAITING HUGO JSON CONVERSION TOOL
 320 SIGNATURE NOT RECOGNISED
 321 */
 322 #define BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY(...) BOOST_OUTCOME_TRY_CALL_OVERLOAD(BOOST_OUTCOME_CO_TRY_FAILURE_LIKELY_INVOKE_TRY, __VA_ARGS__)
 323
 324 #if !defined(__clang__) && defined(__GNUC__) && __GNUC__ >= 8
 325 #pragma GCC diagnostic pop
 326 #endif
 327
 328 #endif