3rdparty/boost/boost/function/function_template.hpp

   1 // Boost.Function library
   2
   3 //  Copyright Douglas Gregor 2001-2006
   4 //  Copyright Emil Dotchevski 2007
   5 //  Use, modification and distribution is subject to the Boost Software License, Version 1.0.
   6 //  (See accompanying file LICENSE_1_0.txt or copy at
   7 //  http://www.boost.org/LICENSE_1_0.txt)
   8
   9 // For more information, see http://www.boost.org
  10
  11 // Note: this header is a header template and must NOT have multiple-inclusion
  12 // protection.
  13 #include <boost/function/detail/prologue.hpp>
  14 #include <boost/core/no_exceptions_support.hpp>
  15
  16 #if defined(BOOST_MSVC)
  17 #   pragma warning( push )
  18 #   pragma warning( disable : 4127 ) // "conditional expression is constant"
  19 #endif
  20
  21 #define BOOST_FUNCTION_TEMPLATE_PARMS BOOST_PP_ENUM_PARAMS(BOOST_FUNCTION_NUM_ARGS, typename T)
  22
  23 #define BOOST_FUNCTION_TEMPLATE_ARGS BOOST_PP_ENUM_PARAMS(BOOST_FUNCTION_NUM_ARGS, T)
  24
  25 #define BOOST_FUNCTION_PARM(J,I,D) BOOST_PP_CAT(T,I) BOOST_PP_CAT(a,I)
  26
  27 #define BOOST_FUNCTION_PARMS BOOST_PP_ENUM(BOOST_FUNCTION_NUM_ARGS,BOOST_FUNCTION_PARM,BOOST_PP_EMPTY)
  28
  29 #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
  30 #   define BOOST_FUNCTION_ARGS BOOST_PP_ENUM_PARAMS(BOOST_FUNCTION_NUM_ARGS, a)
  31 #else
  32 #   define BOOST_FUNCTION_ARG(J,I,D) static_cast<BOOST_PP_CAT(T,I)&&>(BOOST_PP_CAT(a,I))
  33 #   define BOOST_FUNCTION_ARGS BOOST_PP_ENUM(BOOST_FUNCTION_NUM_ARGS,BOOST_FUNCTION_ARG,BOOST_PP_EMPTY)
  34 #endif
  35
  36 #define BOOST_FUNCTION_ARG_TYPE(J,I,D) \
  37   typedef BOOST_PP_CAT(T,I) BOOST_PP_CAT(BOOST_PP_CAT(arg, BOOST_PP_INC(I)),_type);
  38
  39 #define BOOST_FUNCTION_ARG_TYPES BOOST_PP_REPEAT(BOOST_FUNCTION_NUM_ARGS,BOOST_FUNCTION_ARG_TYPE,BOOST_PP_EMPTY)
  40
  41 // Comma if nonzero number of arguments
  42 #if BOOST_FUNCTION_NUM_ARGS == 0
  43 #  define BOOST_FUNCTION_COMMA
  44 #else
  45 #  define BOOST_FUNCTION_COMMA ,
  46 #endif // BOOST_FUNCTION_NUM_ARGS > 0
  47
  48 // Class names used in this version of the code
  49 #define BOOST_FUNCTION_FUNCTION BOOST_JOIN(function,BOOST_FUNCTION_NUM_ARGS)
  50 #define BOOST_FUNCTION_FUNCTION_INVOKER \
  51   BOOST_JOIN(function_invoker,BOOST_FUNCTION_NUM_ARGS)
  52 #define BOOST_FUNCTION_VOID_FUNCTION_INVOKER \
  53   BOOST_JOIN(void_function_invoker,BOOST_FUNCTION_NUM_ARGS)
  54 #define BOOST_FUNCTION_FUNCTION_OBJ_INVOKER \
  55   BOOST_JOIN(function_obj_invoker,BOOST_FUNCTION_NUM_ARGS)
  56 #define BOOST_FUNCTION_VOID_FUNCTION_OBJ_INVOKER \
  57   BOOST_JOIN(void_function_obj_invoker,BOOST_FUNCTION_NUM_ARGS)
  58 #define BOOST_FUNCTION_FUNCTION_REF_INVOKER \
  59   BOOST_JOIN(function_ref_invoker,BOOST_FUNCTION_NUM_ARGS)
  60 #define BOOST_FUNCTION_VOID_FUNCTION_REF_INVOKER \
  61   BOOST_JOIN(void_function_ref_invoker,BOOST_FUNCTION_NUM_ARGS)
  62 #define BOOST_FUNCTION_MEMBER_INVOKER \
  63   BOOST_JOIN(function_mem_invoker,BOOST_FUNCTION_NUM_ARGS)
  64 #define BOOST_FUNCTION_VOID_MEMBER_INVOKER \
  65   BOOST_JOIN(function_void_mem_invoker,BOOST_FUNCTION_NUM_ARGS)
  66 #define BOOST_FUNCTION_GET_FUNCTION_INVOKER \
  67   BOOST_JOIN(get_function_invoker,BOOST_FUNCTION_NUM_ARGS)
  68 #define BOOST_FUNCTION_GET_FUNCTION_OBJ_INVOKER \
  69   BOOST_JOIN(get_function_obj_invoker,BOOST_FUNCTION_NUM_ARGS)
  70 #define BOOST_FUNCTION_GET_FUNCTION_REF_INVOKER \
  71   BOOST_JOIN(get_function_ref_invoker,BOOST_FUNCTION_NUM_ARGS)
  72 #define BOOST_FUNCTION_GET_MEMBER_INVOKER \
  73   BOOST_JOIN(get_member_invoker,BOOST_FUNCTION_NUM_ARGS)
  74 #define BOOST_FUNCTION_GET_INVOKER \
  75   BOOST_JOIN(get_invoker,BOOST_FUNCTION_NUM_ARGS)
  76 #define BOOST_FUNCTION_VTABLE BOOST_JOIN(basic_vtable,BOOST_FUNCTION_NUM_ARGS)
  77
  78 #ifndef BOOST_NO_VOID_RETURNS
  79 #  define BOOST_FUNCTION_VOID_RETURN_TYPE void
  80 #  define BOOST_FUNCTION_RETURN(X) X
  81 #else
  82 #  define BOOST_FUNCTION_VOID_RETURN_TYPE boost::detail::function::unusable
  83 #  define BOOST_FUNCTION_RETURN(X) X; return BOOST_FUNCTION_VOID_RETURN_TYPE ()
  84 #endif
  85
  86 namespace boost {
  87   namespace detail {
  88     namespace function {
  89       template<
  90         typename FunctionPtr,
  91         typename R BOOST_FUNCTION_COMMA
  92         BOOST_FUNCTION_TEMPLATE_PARMS
  93         >
  94       struct BOOST_FUNCTION_FUNCTION_INVOKER
  95       {
  96         static R invoke(function_buffer& function_ptr BOOST_FUNCTION_COMMA
  97                         BOOST_FUNCTION_PARMS)
  98         {
  99           FunctionPtr f = reinterpret_cast<FunctionPtr>(function_ptr.members.func_ptr);
 100           return f(BOOST_FUNCTION_ARGS);
 101         }
 102       };
 103
 104       template<
 105         typename FunctionPtr,
 106         typename R BOOST_FUNCTION_COMMA
 107         BOOST_FUNCTION_TEMPLATE_PARMS
 108         >
 109       struct BOOST_FUNCTION_VOID_FUNCTION_INVOKER
 110       {
 111         static BOOST_FUNCTION_VOID_RETURN_TYPE
 112         invoke(function_buffer& function_ptr BOOST_FUNCTION_COMMA
 113                BOOST_FUNCTION_PARMS)
 114
 115         {
 116           FunctionPtr f = reinterpret_cast<FunctionPtr>(function_ptr.members.func_ptr);
 117           BOOST_FUNCTION_RETURN(f(BOOST_FUNCTION_ARGS));
 118         }
 119       };
 120
 121       template<
 122         typename FunctionObj,
 123         typename R BOOST_FUNCTION_COMMA
 124         BOOST_FUNCTION_TEMPLATE_PARMS
 125       >
 126       struct BOOST_FUNCTION_FUNCTION_OBJ_INVOKER
 127       {
 128         static R invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 129                         BOOST_FUNCTION_PARMS)
 130
 131         {
 132           FunctionObj* f;
 133           if (function_allows_small_object_optimization<FunctionObj>::value)
 134             f = reinterpret_cast<FunctionObj*>(function_obj_ptr.data);
 135           else
 136             f = reinterpret_cast<FunctionObj*>(function_obj_ptr.members.obj_ptr);
 137           return (*f)(BOOST_FUNCTION_ARGS);
 138         }
 139       };
 140
 141       template<
 142         typename FunctionObj,
 143         typename R BOOST_FUNCTION_COMMA
 144         BOOST_FUNCTION_TEMPLATE_PARMS
 145       >
 146       struct BOOST_FUNCTION_VOID_FUNCTION_OBJ_INVOKER
 147       {
 148         static BOOST_FUNCTION_VOID_RETURN_TYPE
 149         invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 150                BOOST_FUNCTION_PARMS)
 151
 152         {
 153           FunctionObj* f;
 154           if (function_allows_small_object_optimization<FunctionObj>::value)
 155             f = reinterpret_cast<FunctionObj*>(function_obj_ptr.data);
 156           else
 157             f = reinterpret_cast<FunctionObj*>(function_obj_ptr.members.obj_ptr);
 158           BOOST_FUNCTION_RETURN((*f)(BOOST_FUNCTION_ARGS));
 159         }
 160       };
 161
 162       template<
 163         typename FunctionObj,
 164         typename R BOOST_FUNCTION_COMMA
 165         BOOST_FUNCTION_TEMPLATE_PARMS
 166       >
 167       struct BOOST_FUNCTION_FUNCTION_REF_INVOKER
 168       {
 169         static R invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 170                         BOOST_FUNCTION_PARMS)
 171
 172         {
 173           FunctionObj* f =
 174             reinterpret_cast<FunctionObj*>(function_obj_ptr.members.obj_ptr);
 175           return (*f)(BOOST_FUNCTION_ARGS);
 176         }
 177       };
 178
 179       template<
 180         typename FunctionObj,
 181         typename R BOOST_FUNCTION_COMMA
 182         BOOST_FUNCTION_TEMPLATE_PARMS
 183       >
 184       struct BOOST_FUNCTION_VOID_FUNCTION_REF_INVOKER
 185       {
 186         static BOOST_FUNCTION_VOID_RETURN_TYPE
 187         invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 188                BOOST_FUNCTION_PARMS)
 189
 190         {
 191           FunctionObj* f =
 192             reinterpret_cast<FunctionObj*>(function_obj_ptr.members.obj_ptr);
 193           BOOST_FUNCTION_RETURN((*f)(BOOST_FUNCTION_ARGS));
 194         }
 195       };
 196
 197 #if BOOST_FUNCTION_NUM_ARGS > 0
 198       /* Handle invocation of member pointers. */
 199       template<
 200         typename MemberPtr,
 201         typename R BOOST_FUNCTION_COMMA
 202         BOOST_FUNCTION_TEMPLATE_PARMS
 203       >
 204       struct BOOST_FUNCTION_MEMBER_INVOKER
 205       {
 206         static R invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 207                         BOOST_FUNCTION_PARMS)
 208
 209         {
 210           MemberPtr* f =
 211             reinterpret_cast<MemberPtr*>(function_obj_ptr.data);
 212           return boost::mem_fn(*f)(BOOST_FUNCTION_ARGS);
 213         }
 214       };
 215
 216       template<
 217         typename MemberPtr,
 218         typename R BOOST_FUNCTION_COMMA
 219         BOOST_FUNCTION_TEMPLATE_PARMS
 220       >
 221       struct BOOST_FUNCTION_VOID_MEMBER_INVOKER
 222       {
 223         static BOOST_FUNCTION_VOID_RETURN_TYPE
 224         invoke(function_buffer& function_obj_ptr BOOST_FUNCTION_COMMA
 225                BOOST_FUNCTION_PARMS)
 226
 227         {
 228           MemberPtr* f =
 229             reinterpret_cast<MemberPtr*>(function_obj_ptr.data);
 230           BOOST_FUNCTION_RETURN(boost::mem_fn(*f)(BOOST_FUNCTION_ARGS));
 231         }
 232       };
 233 #endif
 234
 235       template<
 236         typename FunctionPtr,
 237         typename R BOOST_FUNCTION_COMMA
 238         BOOST_FUNCTION_TEMPLATE_PARMS
 239       >
 240       struct BOOST_FUNCTION_GET_FUNCTION_INVOKER
 241       {
 242         typedef typename conditional<(is_void<R>::value),
 243                             BOOST_FUNCTION_VOID_FUNCTION_INVOKER<
 244                             FunctionPtr,
 245                             R BOOST_FUNCTION_COMMA
 246                             BOOST_FUNCTION_TEMPLATE_ARGS
 247                           >,
 248                           BOOST_FUNCTION_FUNCTION_INVOKER<
 249                             FunctionPtr,
 250                             R BOOST_FUNCTION_COMMA
 251                             BOOST_FUNCTION_TEMPLATE_ARGS
 252                           >
 253                        >::type type;
 254       };
 255
 256       template<
 257         typename FunctionObj,
 258         typename R BOOST_FUNCTION_COMMA
 259         BOOST_FUNCTION_TEMPLATE_PARMS
 260        >
 261       struct BOOST_FUNCTION_GET_FUNCTION_OBJ_INVOKER
 262       {
 263         typedef typename conditional<(is_void<R>::value),
 264                             BOOST_FUNCTION_VOID_FUNCTION_OBJ_INVOKER<
 265                             FunctionObj,
 266                             R BOOST_FUNCTION_COMMA
 267                             BOOST_FUNCTION_TEMPLATE_ARGS
 268                           >,
 269                           BOOST_FUNCTION_FUNCTION_OBJ_INVOKER<
 270                             FunctionObj,
 271                             R BOOST_FUNCTION_COMMA
 272                             BOOST_FUNCTION_TEMPLATE_ARGS
 273                           >
 274                        >::type type;
 275       };
 276
 277       template<
 278         typename FunctionObj,
 279         typename R BOOST_FUNCTION_COMMA
 280         BOOST_FUNCTION_TEMPLATE_PARMS
 281        >
 282       struct BOOST_FUNCTION_GET_FUNCTION_REF_INVOKER
 283       {
 284         typedef typename conditional<(is_void<R>::value),
 285                             BOOST_FUNCTION_VOID_FUNCTION_REF_INVOKER<
 286                             FunctionObj,
 287                             R BOOST_FUNCTION_COMMA
 288                             BOOST_FUNCTION_TEMPLATE_ARGS
 289                           >,
 290                           BOOST_FUNCTION_FUNCTION_REF_INVOKER<
 291                             FunctionObj,
 292                             R BOOST_FUNCTION_COMMA
 293                             BOOST_FUNCTION_TEMPLATE_ARGS
 294                           >
 295                        >::type type;
 296       };
 297
 298 #if BOOST_FUNCTION_NUM_ARGS > 0
 299       /* Retrieve the appropriate invoker for a member pointer.  */
 300       template<
 301         typename MemberPtr,
 302         typename R BOOST_FUNCTION_COMMA
 303         BOOST_FUNCTION_TEMPLATE_PARMS
 304        >
 305       struct BOOST_FUNCTION_GET_MEMBER_INVOKER
 306       {
 307         typedef typename conditional<(is_void<R>::value),
 308                             BOOST_FUNCTION_VOID_MEMBER_INVOKER<
 309                             MemberPtr,
 310                             R BOOST_FUNCTION_COMMA
 311                             BOOST_FUNCTION_TEMPLATE_ARGS
 312                           >,
 313                           BOOST_FUNCTION_MEMBER_INVOKER<
 314                             MemberPtr,
 315                             R BOOST_FUNCTION_COMMA
 316                             BOOST_FUNCTION_TEMPLATE_ARGS
 317                           >
 318                        >::type type;
 319       };
 320 #endif
 321
 322       /* Given the tag returned by get_function_tag, retrieve the
 323          actual invoker that will be used for the given function
 324          object.
 325
 326          Each specialization contains an "apply" nested class template
 327          that accepts the function object, return type, function
 328          argument types, and allocator. The resulting "apply" class
 329          contains two typedefs, "invoker_type" and "manager_type",
 330          which correspond to the invoker and manager types. */
 331       template<typename Tag>
 332       struct BOOST_FUNCTION_GET_INVOKER { };
 333
 334       /* Retrieve the invoker for a function pointer. */
 335       template<>
 336       struct BOOST_FUNCTION_GET_INVOKER<function_ptr_tag>
 337       {
 338         template<typename FunctionPtr,
 339                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 340         struct apply
 341         {
 342           typedef typename BOOST_FUNCTION_GET_FUNCTION_INVOKER<
 343                              FunctionPtr,
 344                              R BOOST_FUNCTION_COMMA
 345                              BOOST_FUNCTION_TEMPLATE_ARGS
 346                            >::type
 347             invoker_type;
 348
 349           typedef functor_manager<FunctionPtr> manager_type;
 350         };
 351
 352         template<typename FunctionPtr, typename Allocator,
 353                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 354         struct apply_a
 355         {
 356           typedef typename BOOST_FUNCTION_GET_FUNCTION_INVOKER<
 357                              FunctionPtr,
 358                              R BOOST_FUNCTION_COMMA
 359                              BOOST_FUNCTION_TEMPLATE_ARGS
 360                            >::type
 361             invoker_type;
 362
 363           typedef functor_manager<FunctionPtr> manager_type;
 364         };
 365       };
 366
 367 #if BOOST_FUNCTION_NUM_ARGS > 0
 368       /* Retrieve the invoker for a member pointer. */
 369       template<>
 370       struct BOOST_FUNCTION_GET_INVOKER<member_ptr_tag>
 371       {
 372         template<typename MemberPtr,
 373                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 374         struct apply
 375         {
 376           typedef typename BOOST_FUNCTION_GET_MEMBER_INVOKER<
 377                              MemberPtr,
 378                              R BOOST_FUNCTION_COMMA
 379                              BOOST_FUNCTION_TEMPLATE_ARGS
 380                            >::type
 381             invoker_type;
 382
 383           typedef functor_manager<MemberPtr> manager_type;
 384         };
 385
 386         template<typename MemberPtr, typename Allocator,
 387                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 388         struct apply_a
 389         {
 390           typedef typename BOOST_FUNCTION_GET_MEMBER_INVOKER<
 391                              MemberPtr,
 392                              R BOOST_FUNCTION_COMMA
 393                              BOOST_FUNCTION_TEMPLATE_ARGS
 394                            >::type
 395             invoker_type;
 396
 397           typedef functor_manager<MemberPtr> manager_type;
 398         };
 399       };
 400 #endif
 401
 402       /* Retrieve the invoker for a function object. */
 403       template<>
 404       struct BOOST_FUNCTION_GET_INVOKER<function_obj_tag>
 405       {
 406         template<typename FunctionObj,
 407                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 408         struct apply
 409         {
 410           typedef typename BOOST_FUNCTION_GET_FUNCTION_OBJ_INVOKER<
 411                              FunctionObj,
 412                              R BOOST_FUNCTION_COMMA
 413                              BOOST_FUNCTION_TEMPLATE_ARGS
 414                            >::type
 415             invoker_type;
 416
 417           typedef functor_manager<FunctionObj> manager_type;
 418         };
 419
 420         template<typename FunctionObj, typename Allocator,
 421                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 422         struct apply_a
 423         {
 424           typedef typename BOOST_FUNCTION_GET_FUNCTION_OBJ_INVOKER<
 425                              FunctionObj,
 426                              R BOOST_FUNCTION_COMMA
 427                              BOOST_FUNCTION_TEMPLATE_ARGS
 428                            >::type
 429             invoker_type;
 430
 431           typedef functor_manager_a<FunctionObj, Allocator> manager_type;
 432         };
 433       };
 434
 435       /* Retrieve the invoker for a reference to a function object. */
 436       template<>
 437       struct BOOST_FUNCTION_GET_INVOKER<function_obj_ref_tag>
 438       {
 439         template<typename RefWrapper,
 440                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 441         struct apply
 442         {
 443           typedef typename BOOST_FUNCTION_GET_FUNCTION_REF_INVOKER<
 444                              typename RefWrapper::type,
 445                              R BOOST_FUNCTION_COMMA
 446                              BOOST_FUNCTION_TEMPLATE_ARGS
 447                            >::type
 448             invoker_type;
 449
 450           typedef reference_manager<typename RefWrapper::type> manager_type;
 451         };
 452
 453         template<typename RefWrapper, typename Allocator,
 454                  typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 455         struct apply_a
 456         {
 457           typedef typename BOOST_FUNCTION_GET_FUNCTION_REF_INVOKER<
 458                              typename RefWrapper::type,
 459                              R BOOST_FUNCTION_COMMA
 460                              BOOST_FUNCTION_TEMPLATE_ARGS
 461                            >::type
 462             invoker_type;
 463
 464           typedef reference_manager<typename RefWrapper::type> manager_type;
 465         };
 466       };
 467
 468
 469       /**
 470        * vtable for a specific boost::function instance. This
 471        * structure must be an aggregate so that we can use static
 472        * initialization in boost::function's assign_to and assign_to_a
 473        * members. It therefore cannot have any constructors,
 474        * destructors, base classes, etc.
 475        */
 476       template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
 477       struct BOOST_FUNCTION_VTABLE
 478       {
 479 #ifndef BOOST_NO_VOID_RETURNS
 480         typedef R         result_type;
 481 #else
 482         typedef typename function_return_type<R>::type result_type;
 483 #endif // BOOST_NO_VOID_RETURNS
 484
 485         typedef result_type (*invoker_type)(function_buffer&
 486                                             BOOST_FUNCTION_COMMA
 487                                             BOOST_FUNCTION_TEMPLATE_ARGS);
 488
 489         template<typename F>
 490         bool assign_to(F f, function_buffer& functor) const
 491         {
 492           typedef typename get_function_tag<F>::type tag;
 493           return assign_to(f, functor, tag());
 494         }
 495         template<typename F,typename Allocator>
 496         bool assign_to_a(F f, function_buffer& functor, Allocator a) const
 497         {
 498           typedef typename get_function_tag<F>::type tag;
 499           return assign_to_a(f, functor, a, tag());
 500         }
 501
 502         void clear(function_buffer& functor) const
 503         {
 504           if (base.manager)
 505             base.manager(functor, functor, destroy_functor_tag);
 506         }
 507
 508       private:
 509         // Function pointers
 510         template<typename FunctionPtr>
 511         bool
 512         assign_to(FunctionPtr f, function_buffer& functor, function_ptr_tag) const
 513         {
 514           this->clear(functor);
 515           if (f) {
 516             // should be a reinterpret cast, but some compilers insist
 517             // on giving cv-qualifiers to free functions
 518             functor.members.func_ptr = reinterpret_cast<void (*)()>(f);
 519             return true;
 520           } else {
 521             return false;
 522           }
 523         }
 524         template<typename FunctionPtr,typename Allocator>
 525         bool
 526         assign_to_a(FunctionPtr f, function_buffer& functor, Allocator, function_ptr_tag) const
 527         {
 528           return assign_to(f,functor,function_ptr_tag());
 529         }
 530
 531         // Member pointers
 532 #if BOOST_FUNCTION_NUM_ARGS > 0
 533         template<typename MemberPtr>
 534         bool assign_to(MemberPtr f, function_buffer& functor, member_ptr_tag) const
 535         {
 536           // DPG TBD: Add explicit support for member function
 537           // objects, so we invoke through mem_fn() but we retain the
 538           // right target_type() values.
 539           if (f) {
 540             this->assign_to(boost::mem_fn(f), functor);
 541             return true;
 542           } else {
 543             return false;
 544           }
 545         }
 546         template<typename MemberPtr,typename Allocator>
 547         bool assign_to_a(MemberPtr f, function_buffer& functor, Allocator a, member_ptr_tag) const
 548         {
 549           // DPG TBD: Add explicit support for member function
 550           // objects, so we invoke through mem_fn() but we retain the
 551           // right target_type() values.
 552           if (f) {
 553             this->assign_to_a(boost::mem_fn(f), functor, a);
 554             return true;
 555           } else {
 556             return false;
 557           }
 558         }
 559 #endif // BOOST_FUNCTION_NUM_ARGS > 0
 560
 561         // Function objects
 562         // Assign to a function object using the small object optimization
 563         template<typename FunctionObj>
 564         void
 565         assign_functor(FunctionObj f, function_buffer& functor, true_type) const
 566         {
 567           new (reinterpret_cast<void*>(functor.data)) FunctionObj(f);
 568         }
 569         template<typename FunctionObj,typename Allocator>
 570         void
 571         assign_functor_a(FunctionObj f, function_buffer& functor, Allocator, true_type) const
 572         {
 573           assign_functor(f,functor,true_type());
 574         }
 575
 576         // Assign to a function object allocated on the heap.
 577         template<typename FunctionObj>
 578         void
 579         assign_functor(FunctionObj f, function_buffer& functor, false_type) const
 580         {
 581           functor.members.obj_ptr = new FunctionObj(f);
 582         }
 583         template<typename FunctionObj,typename Allocator>
 584         void
 585         assign_functor_a(FunctionObj f, function_buffer& functor, Allocator a, false_type) const
 586         {
 587           typedef functor_wrapper<FunctionObj,Allocator> functor_wrapper_type;
 588 #if defined(BOOST_NO_CXX11_ALLOCATOR)
 589           typedef typename Allocator::template rebind<functor_wrapper_type>::other
 590             wrapper_allocator_type;
 591           typedef typename wrapper_allocator_type::pointer wrapper_allocator_pointer_type;
 592 #else
 593           using wrapper_allocator_type = typename std::allocator_traits<Allocator>::template rebind_alloc<functor_wrapper_type>;
 594           using wrapper_allocator_pointer_type = typename std::allocator_traits<wrapper_allocator_type>::pointer;
 595 #endif
 596           wrapper_allocator_type wrapper_allocator(a);
 597           wrapper_allocator_pointer_type copy = wrapper_allocator.allocate(1);
 598 #if defined(BOOST_NO_CXX11_ALLOCATOR)
 599           wrapper_allocator.construct(copy, functor_wrapper_type(f,a));
 600 #else
 601           std::allocator_traits<wrapper_allocator_type>::construct(wrapper_allocator, copy, functor_wrapper_type(f,a));
 602 #endif
 603           functor_wrapper_type* new_f = static_cast<functor_wrapper_type*>(copy);
 604           functor.members.obj_ptr = new_f;
 605         }
 606
 607         template<typename FunctionObj>
 608         bool
 609         assign_to(FunctionObj f, function_buffer& functor, function_obj_tag) const
 610         {
 611           if (!boost::detail::function::has_empty_target(boost::addressof(f))) {
 612             assign_functor(f, functor,
 613                            integral_constant<bool, (function_allows_small_object_optimization<FunctionObj>::value)>());
 614             return true;
 615           } else {
 616             return false;
 617           }
 618         }
 619         template<typename FunctionObj,typename Allocator>
 620         bool
 621         assign_to_a(FunctionObj f, function_buffer& functor, Allocator a, function_obj_tag) const
 622         {
 623           if (!boost::detail::function::has_empty_target(boost::addressof(f))) {
 624             assign_functor_a(f, functor, a,
 625                            integral_constant<bool, (function_allows_small_object_optimization<FunctionObj>::value)>());
 626             return true;
 627           } else {
 628             return false;
 629           }
 630         }
 631
 632         // Reference to a function object
 633         template<typename FunctionObj>
 634         bool
 635         assign_to(const reference_wrapper<FunctionObj>& f,
 636                   function_buffer& functor, function_obj_ref_tag) const
 637         {
 638           functor.members.obj_ref.obj_ptr = (void *)(f.get_pointer());
 639           functor.members.obj_ref.is_const_qualified = is_const<FunctionObj>::value;
 640           functor.members.obj_ref.is_volatile_qualified = is_volatile<FunctionObj>::value;
 641           return true;
 642         }
 643         template<typename FunctionObj,typename Allocator>
 644         bool
 645         assign_to_a(const reference_wrapper<FunctionObj>& f,
 646                   function_buffer& functor, Allocator, function_obj_ref_tag) const
 647         {
 648           return assign_to(f,functor,function_obj_ref_tag());
 649         }
 650
 651       public:
 652         vtable_base base;
 653         invoker_type invoker;
 654       };
 655     } // end namespace function
 656   } // end namespace detail
 657
 658   template<
 659     typename R BOOST_FUNCTION_COMMA
 660     BOOST_FUNCTION_TEMPLATE_PARMS
 661   >
 662   class BOOST_FUNCTION_FUNCTION : public function_base
 663   {
 664   public:
 665 #ifndef BOOST_NO_VOID_RETURNS
 666     typedef R         result_type;
 667 #else
 668     typedef  typename boost::detail::function::function_return_type<R>::type
 669       result_type;
 670 #endif // BOOST_NO_VOID_RETURNS
 671
 672   private:
 673     typedef boost::detail::function::BOOST_FUNCTION_VTABLE<
 674               R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>
 675       vtable_type;
 676
 677     vtable_type* get_vtable() const {
 678       return reinterpret_cast<vtable_type*>(
 679                reinterpret_cast<std::size_t>(vtable) & ~static_cast<std::size_t>(0x01));
 680     }
 681
 682     struct clear_type {};
 683
 684   public:
 685     BOOST_STATIC_CONSTANT(int, args = BOOST_FUNCTION_NUM_ARGS);
 686
 687     // add signature for boost::lambda
 688     template<typename Args>
 689     struct sig
 690     {
 691       typedef result_type type;
 692     };
 693
 694 #if BOOST_FUNCTION_NUM_ARGS == 1
 695     typedef T0 argument_type;
 696 #elif BOOST_FUNCTION_NUM_ARGS == 2
 697     typedef T0 first_argument_type;
 698     typedef T1 second_argument_type;
 699 #endif
 700
 701     BOOST_STATIC_CONSTANT(int, arity = BOOST_FUNCTION_NUM_ARGS);
 702     BOOST_FUNCTION_ARG_TYPES
 703
 704     typedef BOOST_FUNCTION_FUNCTION self_type;
 705
 706     BOOST_DEFAULTED_FUNCTION(BOOST_FUNCTION_FUNCTION(), : function_base() {})
 707
 708     // MSVC chokes if the following two constructors are collapsed into
 709     // one with a default parameter.
 710     template<typename Functor>
 711     BOOST_FUNCTION_FUNCTION(Functor BOOST_FUNCTION_TARGET_FIX(const &) f
 712 #ifndef BOOST_NO_SFINAE
 713                             ,typename boost::enable_if_<
 714                              !(is_integral<Functor>::value),
 715                                         int>::type = 0
 716 #endif // BOOST_NO_SFINAE
 717                             ) :
 718       function_base()
 719     {
 720       this->assign_to(f);
 721     }
 722     template<typename Functor,typename Allocator>
 723     BOOST_FUNCTION_FUNCTION(Functor BOOST_FUNCTION_TARGET_FIX(const &) f, Allocator a
 724 #ifndef BOOST_NO_SFINAE
 725                             ,typename boost::enable_if_<
 726                               !(is_integral<Functor>::value),
 727                                         int>::type = 0
 728 #endif // BOOST_NO_SFINAE
 729                             ) :
 730       function_base()
 731     {
 732       this->assign_to_a(f,a);
 733     }
 734
 735 #ifndef BOOST_NO_SFINAE
 736     BOOST_FUNCTION_FUNCTION(clear_type*) : function_base() { }
 737 #else
 738     BOOST_FUNCTION_FUNCTION(int zero) : function_base()
 739     {
 740       BOOST_ASSERT(zero == 0);
 741     }
 742 #endif
 743
 744     BOOST_FUNCTION_FUNCTION(const BOOST_FUNCTION_FUNCTION& f) : function_base()
 745     {
 746       this->assign_to_own(f);
 747     }
 748
 749 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
 750     BOOST_FUNCTION_FUNCTION(BOOST_FUNCTION_FUNCTION&& f) : function_base()
 751     {
 752       this->move_assign(f);
 753     }
 754 #endif
 755
 756     ~BOOST_FUNCTION_FUNCTION() { clear(); }
 757
 758     result_type operator()(BOOST_FUNCTION_PARMS) const
 759     {
 760       if (this->empty())
 761         boost::throw_exception(bad_function_call());
 762
 763       return get_vtable()->invoker
 764                (this->functor BOOST_FUNCTION_COMMA BOOST_FUNCTION_ARGS);
 765     }
 766
 767     // The distinction between when to use BOOST_FUNCTION_FUNCTION and
 768     // when to use self_type is obnoxious. MSVC cannot handle self_type as
 769     // the return type of these assignment operators, but Borland C++ cannot
 770     // handle BOOST_FUNCTION_FUNCTION as the type of the temporary to
 771     // construct.
 772     template<typename Functor>
 773 #ifndef BOOST_NO_SFINAE
 774     typename boost::enable_if_<
 775                   !(is_integral<Functor>::value),
 776                BOOST_FUNCTION_FUNCTION&>::type
 777 #else
 778     BOOST_FUNCTION_FUNCTION&
 779 #endif
 780     operator=(Functor BOOST_FUNCTION_TARGET_FIX(const &) f)
 781     {
 782       this->clear();
 783       BOOST_TRY  {
 784         this->assign_to(f);
 785       } BOOST_CATCH (...) {
 786         vtable = 0;
 787         BOOST_RETHROW;
 788       }
 789       BOOST_CATCH_END
 790       return *this;
 791     }
 792     template<typename Functor,typename Allocator>
 793     void assign(Functor BOOST_FUNCTION_TARGET_FIX(const &) f, Allocator a)
 794     {
 795       this->clear();
 796       BOOST_TRY{
 797         this->assign_to_a(f,a);
 798       } BOOST_CATCH (...) {
 799         vtable = 0;
 800         BOOST_RETHROW;
 801       }
 802       BOOST_CATCH_END
 803     }
 804
 805 #ifndef BOOST_NO_SFINAE
 806     BOOST_FUNCTION_FUNCTION& operator=(clear_type*)
 807     {
 808       this->clear();
 809       return *this;
 810     }
 811 #else
 812     BOOST_FUNCTION_FUNCTION& operator=(int zero)
 813     {
 814       BOOST_ASSERT(zero == 0);
 815       this->clear();
 816       return *this;
 817     }
 818 #endif
 819
 820     // Assignment from another BOOST_FUNCTION_FUNCTION
 821     BOOST_FUNCTION_FUNCTION& operator=(const BOOST_FUNCTION_FUNCTION& f)
 822     {
 823       if (&f == this)
 824         return *this;
 825
 826       this->clear();
 827       BOOST_TRY {
 828         this->assign_to_own(f);
 829       } BOOST_CATCH (...) {
 830         vtable = 0;
 831         BOOST_RETHROW;
 832       }
 833       BOOST_CATCH_END
 834       return *this;
 835     }
 836
 837 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
 838     // Move assignment from another BOOST_FUNCTION_FUNCTION
 839     BOOST_FUNCTION_FUNCTION& operator=(BOOST_FUNCTION_FUNCTION&& f)
 840     {
 841       if (&f == this)
 842         return *this;
 843
 844       this->clear();
 845       BOOST_TRY {
 846         this->move_assign(f);
 847       } BOOST_CATCH (...) {
 848         vtable = 0;
 849         BOOST_RETHROW;
 850       }
 851       BOOST_CATCH_END
 852       return *this;
 853     }
 854 #endif
 855
 856     void swap(BOOST_FUNCTION_FUNCTION& other)
 857     {
 858       if (&other == this)
 859         return;
 860
 861       BOOST_FUNCTION_FUNCTION tmp;
 862       tmp.move_assign(*this);
 863       this->move_assign(other);
 864       other.move_assign(tmp);
 865     }
 866
 867     // Clear out a target, if there is one
 868     void clear()
 869     {
 870       if (vtable) {
 871         if (!this->has_trivial_copy_and_destroy())
 872           get_vtable()->clear(this->functor);
 873         vtable = 0;
 874       }
 875     }
 876
 877 #if (defined __SUNPRO_CC) && (__SUNPRO_CC <= 0x530) && !(defined BOOST_NO_COMPILER_CONFIG)
 878     // Sun C++ 5.3 can't handle the safe_bool idiom, so don't use it
 879     operator bool () const { return !this->empty(); }
 880 #else
 881   private:
 882     struct dummy {
 883       void nonnull() {}
 884     };
 885
 886     typedef void (dummy::*safe_bool)();
 887
 888   public:
 889     operator safe_bool () const
 890       { return (this->empty())? 0 : &dummy::nonnull; }
 891
 892     bool operator!() const
 893       { return this->empty(); }
 894 #endif
 895
 896   private:
 897     void assign_to_own(const BOOST_FUNCTION_FUNCTION& f)
 898     {
 899       if (!f.empty()) {
 900         this->vtable = f.vtable;
 901         if (this->has_trivial_copy_and_destroy())
 902           // Don't operate on storage directly since union type doesn't relax
 903           // strict aliasing rules, despite of having member char type.
 904           std::memcpy(this->functor.data, f.functor.data, sizeof(boost::detail::function::function_buffer));
 905         else
 906           get_vtable()->base.manager(f.functor, this->functor,
 907                                      boost::detail::function::clone_functor_tag);
 908       }
 909     }
 910
 911     template<typename Functor>
 912     void assign_to(Functor f)
 913     {
 914       using boost::detail::function::vtable_base;
 915
 916       typedef typename boost::detail::function::get_function_tag<Functor>::type tag;
 917       typedef boost::detail::function::BOOST_FUNCTION_GET_INVOKER<tag> get_invoker;
 918       typedef typename get_invoker::
 919                          template apply<Functor, R BOOST_FUNCTION_COMMA
 920                         BOOST_FUNCTION_TEMPLATE_ARGS>
 921         handler_type;
 922
 923       typedef typename handler_type::invoker_type invoker_type;
 924       typedef typename handler_type::manager_type manager_type;
 925
 926       // Note: it is extremely important that this initialization use
 927       // static initialization. Otherwise, we will have a race
 928       // condition here in multi-threaded code. See
 929       // http://thread.gmane.org/gmane.comp.lib.boost.devel/164902/.
 930       static const vtable_type stored_vtable =
 931         { { &manager_type::manage }, &invoker_type::invoke };
 932
 933       if (stored_vtable.assign_to(f, functor)) {
 934         std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
 935         // coverity[pointless_expression]: suppress coverity warnings on apparant if(const).
 936         if (boost::has_trivial_copy_constructor<Functor>::value &&
 937             boost::has_trivial_destructor<Functor>::value &&
 938             boost::detail::function::function_allows_small_object_optimization<Functor>::value)
 939           value |= static_cast<std::size_t>(0x01);
 940         vtable = reinterpret_cast<boost::detail::function::vtable_base *>(value);
 941       } else
 942         vtable = 0;
 943     }
 944
 945     template<typename Functor,typename Allocator>
 946     void assign_to_a(Functor f,Allocator a)
 947     {
 948       using boost::detail::function::vtable_base;
 949
 950       typedef typename boost::detail::function::get_function_tag<Functor>::type tag;
 951       typedef boost::detail::function::BOOST_FUNCTION_GET_INVOKER<tag> get_invoker;
 952       typedef typename get_invoker::
 953                          template apply_a<Functor, Allocator, R BOOST_FUNCTION_COMMA
 954                          BOOST_FUNCTION_TEMPLATE_ARGS>
 955         handler_type;
 956
 957       typedef typename handler_type::invoker_type invoker_type;
 958       typedef typename handler_type::manager_type manager_type;
 959
 960       // Note: it is extremely important that this initialization use
 961       // static initialization. Otherwise, we will have a race
 962       // condition here in multi-threaded code. See
 963       // http://thread.gmane.org/gmane.comp.lib.boost.devel/164902/.
 964       static const vtable_type stored_vtable =
 965         { { &manager_type::manage }, &invoker_type::invoke };
 966
 967       if (stored_vtable.assign_to_a(f, functor, a)) {
 968         std::size_t value = reinterpret_cast<std::size_t>(&stored_vtable.base);
 969         // coverity[pointless_expression]: suppress coverity warnings on apparant if(const).
 970         if (boost::has_trivial_copy_constructor<Functor>::value &&
 971             boost::has_trivial_destructor<Functor>::value &&
 972             boost::detail::function::function_allows_small_object_optimization<Functor>::value)
 973           value |= static_cast<std::size_t>(0x01);
 974         vtable = reinterpret_cast<boost::detail::function::vtable_base *>(value);
 975       } else
 976         vtable = 0;
 977     }
 978
 979     // Moves the value from the specified argument to *this. If the argument
 980     // has its function object allocated on the heap, move_assign will pass
 981     // its buffer to *this, and set the argument's buffer pointer to NULL.
 982     void move_assign(BOOST_FUNCTION_FUNCTION& f)
 983     {
 984       if (&f == this)
 985         return;
 986
 987       BOOST_TRY {
 988         if (!f.empty()) {
 989           this->vtable = f.vtable;
 990           if (this->has_trivial_copy_and_destroy())
 991             // Don't operate on storage directly since union type doesn't relax
 992             // strict aliasing rules, despite of having member char type.
 993             std::memcpy(this->functor.data, f.functor.data, sizeof(this->functor.data));
 994           else
 995             get_vtable()->base.manager(f.functor, this->functor,
 996                                      boost::detail::function::move_functor_tag);
 997           f.vtable = 0;
 998         } else {
 999           clear();
1000         }
1001       } BOOST_CATCH (...) {
1002         vtable = 0;
1003         BOOST_RETHROW;
1004       }
1005       BOOST_CATCH_END
1006     }
1007   };
1008
1009   template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
1010   inline void swap(BOOST_FUNCTION_FUNCTION<
1011                      R BOOST_FUNCTION_COMMA
1012                      BOOST_FUNCTION_TEMPLATE_ARGS
1013                    >& f1,
1014                    BOOST_FUNCTION_FUNCTION<
1015                      R BOOST_FUNCTION_COMMA
1016                      BOOST_FUNCTION_TEMPLATE_ARGS
1017                    >& f2)
1018   {
1019     f1.swap(f2);
1020   }
1021
1022 // Poison comparisons between boost::function objects of the same type.
1023 template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
1024   void operator==(const BOOST_FUNCTION_FUNCTION<
1025                           R BOOST_FUNCTION_COMMA
1026                           BOOST_FUNCTION_TEMPLATE_ARGS>&,
1027                   const BOOST_FUNCTION_FUNCTION<
1028                           R BOOST_FUNCTION_COMMA
1029                           BOOST_FUNCTION_TEMPLATE_ARGS>&);
1030 template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS>
1031   void operator!=(const BOOST_FUNCTION_FUNCTION<
1032                           R BOOST_FUNCTION_COMMA
1033                           BOOST_FUNCTION_TEMPLATE_ARGS>&,
1034                   const BOOST_FUNCTION_FUNCTION<
1035                           R BOOST_FUNCTION_COMMA
1036                           BOOST_FUNCTION_TEMPLATE_ARGS>& );
1037
1038 #if !defined(BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX)
1039
1040 #if BOOST_FUNCTION_NUM_ARGS == 0
1041 #define BOOST_FUNCTION_PARTIAL_SPEC R (void)
1042 #else
1043 #define BOOST_FUNCTION_PARTIAL_SPEC R (BOOST_FUNCTION_TEMPLATE_ARGS)
1044 #endif
1045
1046 template<typename R BOOST_FUNCTION_COMMA
1047          BOOST_FUNCTION_TEMPLATE_PARMS>
1048 class function<BOOST_FUNCTION_PARTIAL_SPEC>
1049   : public BOOST_FUNCTION_FUNCTION<R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>
1050 {
1051   typedef BOOST_FUNCTION_FUNCTION<R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS> base_type;
1052   typedef function self_type;
1053
1054   struct clear_type {};
1055
1056 public:
1057
1058   BOOST_DEFAULTED_FUNCTION(function(), : base_type() {})
1059
1060   template<typename Functor>
1061   function(Functor f
1062 #ifndef BOOST_NO_SFINAE
1063            ,typename boost::enable_if_<
1064                           !(is_integral<Functor>::value),
1065                        int>::type = 0
1066 #endif
1067            ) :
1068     base_type(f)
1069   {
1070   }
1071   template<typename Functor,typename Allocator>
1072   function(Functor f, Allocator a
1073 #ifndef BOOST_NO_SFINAE
1074            ,typename boost::enable_if_<
1075                            !(is_integral<Functor>::value),
1076                        int>::type = 0
1077 #endif
1078            ) :
1079     base_type(f,a)
1080   {
1081   }
1082
1083 #ifndef BOOST_NO_SFINAE
1084   function(clear_type*) : base_type() {}
1085 #endif
1086
1087   function(const self_type& f) : base_type(static_cast<const base_type&>(f)){}
1088
1089   function(const base_type& f) : base_type(static_cast<const base_type&>(f)){}
1090
1091 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
1092   // Move constructors
1093   function(self_type&& f): base_type(static_cast<base_type&&>(f)){}
1094   function(base_type&& f): base_type(static_cast<base_type&&>(f)){}
1095 #endif
1096
1097   self_type& operator=(const self_type& f)
1098   {
1099     self_type(f).swap(*this);
1100     return *this;
1101   }
1102
1103 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
1104   self_type& operator=(self_type&& f)
1105   {
1106     self_type(static_cast<self_type&&>(f)).swap(*this);
1107     return *this;
1108   }
1109 #endif
1110
1111   template<typename Functor>
1112 #ifndef BOOST_NO_SFINAE
1113   typename boost::enable_if_<
1114                          !(is_integral<Functor>::value),
1115                       self_type&>::type
1116 #else
1117   self_type&
1118 #endif
1119   operator=(Functor f)
1120   {
1121     self_type(f).swap(*this);
1122     return *this;
1123   }
1124
1125 #ifndef BOOST_NO_SFINAE
1126   self_type& operator=(clear_type*)
1127   {
1128     this->clear();
1129     return *this;
1130   }
1131 #endif
1132
1133   self_type& operator=(const base_type& f)
1134   {
1135     self_type(f).swap(*this);
1136     return *this;
1137   }
1138
1139 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
1140   self_type& operator=(base_type&& f)
1141   {
1142     self_type(static_cast<base_type&&>(f)).swap(*this);
1143     return *this;
1144   }
1145 #endif
1146 };
1147
1148 #undef BOOST_FUNCTION_PARTIAL_SPEC
1149 #endif // have partial specialization
1150
1151 } // end namespace boost
1152
1153 // Cleanup after ourselves...
1154 #undef BOOST_FUNCTION_VTABLE
1155 #undef BOOST_FUNCTION_COMMA
1156 #undef BOOST_FUNCTION_FUNCTION
1157 #undef BOOST_FUNCTION_FUNCTION_INVOKER
1158 #undef BOOST_FUNCTION_VOID_FUNCTION_INVOKER
1159 #undef BOOST_FUNCTION_FUNCTION_OBJ_INVOKER
1160 #undef BOOST_FUNCTION_VOID_FUNCTION_OBJ_INVOKER
1161 #undef BOOST_FUNCTION_FUNCTION_REF_INVOKER
1162 #undef BOOST_FUNCTION_VOID_FUNCTION_REF_INVOKER
1163 #undef BOOST_FUNCTION_MEMBER_INVOKER
1164 #undef BOOST_FUNCTION_VOID_MEMBER_INVOKER
1165 #undef BOOST_FUNCTION_GET_FUNCTION_INVOKER
1166 #undef BOOST_FUNCTION_GET_FUNCTION_OBJ_INVOKER
1167 #undef BOOST_FUNCTION_GET_FUNCTION_REF_INVOKER
1168 #undef BOOST_FUNCTION_GET_MEM_FUNCTION_INVOKER
1169 #undef BOOST_FUNCTION_GET_INVOKER
1170 #undef BOOST_FUNCTION_TEMPLATE_PARMS
1171 #undef BOOST_FUNCTION_TEMPLATE_ARGS
1172 #undef BOOST_FUNCTION_PARMS
1173 #undef BOOST_FUNCTION_PARM
1174 #ifdef BOOST_FUNCTION_ARG
1175 #   undef BOOST_FUNCTION_ARG
1176 #endif
1177 #undef BOOST_FUNCTION_ARGS
1178 #undef BOOST_FUNCTION_ARG_TYPE
1179 #undef BOOST_FUNCTION_ARG_TYPES
1180 #undef BOOST_FUNCTION_VOID_RETURN_TYPE
1181 #undef BOOST_FUNCTION_RETURN
1182
1183 #if defined(BOOST_MSVC)
1184 #   pragma warning( pop )
1185 #endif