1 reno_project 2 reno_config ../..;../../../../boost .*\.(cpp|hpp|h)$ 3 reno_layer_map 7 default 4 reno_layer 75 0 5 reno_context 2 AEDDD2FA4F47CEBD99444F1054D85AB8132748CF38D6634503D62E9C8AD5FE68 1378637100 292 368 892C0239798B84BA2E80DAA70BBEB7BE0B6086A1D0829D0E1937EC1D19E3FF20 3349881047 89 197 0 ../../../../boost/exception/errinfo_api_function.hpp 0 0 <string>errinfo_api_function</string> 1 2 (:include include:) (:auto also:) 0 6 reno_context 0 1 <string>boost exception</string> boost-exception 1 2 (:include include:) 0 7 reno_context 1 FFF4359EFC66EE6AA729B641F38B4020A55E83A1C099BCA59B1CA9A9875E7F79 366628170 236 323 0 ../../../../boost/exception/errinfo_file_handle.hpp 0 0 <string>boost/exception/errinfo_file_handle.hpp</string> 1 2 (:include include:) (:auto also:) 0 8 reno_context 0 1 <string>Types</string> types 1 2 (:include include:) (:auto also:) 0 9 reno_context 3 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 38B566F2C6678B8724D18086A6F76E077DC2ADC1BB69A4B83BF0A2C3B7D31B50 2218658069 31 143 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 <string>error_info::value_type</string> 1 2 (:include include:) (:auto also:) 0 10 reno_context 0 1 <string>Functions</string> functions 1 2 (:include include:) (:auto also:) 0 11 reno_context 1 BF7B46FEFA4E2DED7D652BFD40E94DD0B225ADA8D35E28FF4216F72812589835 422843600 756 543 0 ../../../../boost/exception/all.hpp 0 0 <string>boost/exception/all.hpp</string> 1 2 (:include include:) (:auto also:) 0 12 reno_context 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 0066D4E6E6B189906E6DE04F08509F3737511701A1B1355B37511EC18E8371F4 2078296250 305 1066 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>copy_exception</string> 1 2 (:include include:) (:auto also:) 0 13 reno_context 3 2F10A76F9BA78353597A5E6F1373E8188DE7AEFDCE29BFD0105527B64B37D00E 1041541496 4693 1606 4FDA7B607488BB202B2AB72C17983031070085FB6B616F2B77320088BE08EB62 98930276 3714 26 28B2A7701322B20C8CF5D6074F9019FBEA2FB02F1A13E83632AA76C431798777 1206384617 3087 628 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 <string>diagnostic_information</string> 1 2 (:include include:) (:auto also:) 0 14 reno_context 2 790A065B0168021FAD180E996254E3CDBC0360D22D3FCB83C143416663D85402 1376868984 262 323 83E18B98A15DEF9418E38218D221D10DC093B915D630B51974CCD23A6E1EDC44 849683856 98 158 0 ../../../../boost/exception/errinfo_nested_exception.hpp 0 0 <string>errinfo_nested_exception</string> 1 2 (:include include:) (:auto also:) 0 15 reno_context 1 E0BE7EFCD5550582AB95C9EEDA6E68CA0F89B19838DA61876D42161E1EA4AE71 2587249979 233 323 0 ../../../../boost/exception/errinfo_at_line.hpp 0 0 <string>boost/exception/errinfo_at_line.hpp</string> 1 2 (:include include:) (:auto also:) 0 16 reno_context 2 15CF5BD93D20D62D659C11A69330B06E408398EA488BEF1FD45437AADCDB424E 1232553666 214 345 6262783847165581298EC9500031E6B7A97B2751A9CEF67C4794121A78142C58 3676119191 90 118 0 ../../../../boost/exception/errinfo_file_handle.hpp 0 0 <string>errinfo_file_handle</string> 1 2 (:include include:) (:auto also:) 0 17 reno_context 0 1 <string>frequently asked questions</string> 1 2 (:include include:) (:auto also:) 0 18 reno_context 2 9A4ECF9A49A73AED83C1565CB8C67AE1519E8AFE6818F968B4C4733CB9E86CEF 1615599655 68 321 34F0583BC8DE767CE2D79721E1F956895E43E5397473B1050F59BE7E26C773DB 805836816 66 1 0 ../../../../boost/exception/error_info.hpp 0 0 <string>boost/exception/error_info.hpp</string> 1 2 (:include include:) (:auto also:) 0 19 reno_context 3 C6DDF7D02A058403B7BD295CF1561F167D92B7DA1DAC4EBE9F801955264180EB 1656366188 5040 767 507B2DA4184DD6A38FC6099F6454CDC96604C0C7B2C06A2955C78452F66526F8 457758605 3872 889 38AA79D330846BE1CF17285796F34A9DBB5A7E995963A55F9B46EB1DA6314610 542483318 573 3084 0 ../../../../boost/exception/info.hpp 0 0 <string>exception/operator<<</string> 1 2 (:include include:) (:auto also:) 0 20 reno_context 3 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 97095C7B5621CC7BAB278BE10B315FB44588DB1CF078F269E35499C0FD934AF0 2572216802 2505 4436 A94129EFD6ABBDDCD4CFDB671821F7DA103B2EA4455CF39E783D333C236D1C41 1035445969 595 402 0 ../../../../boost/exception/exception.hpp 0 0 <string>exception::exception</string> exception_constructors 1 2 (:include include:) (:auto also:) 0 21 reno_context 0 1 <string>Synopsis</string> synopsis 1 2 (:include include:) (:auto also:) 0 22 reno_context 1 8A5444CF9C854740F83F17EA2075478A983F7C0243DCE4E42551ECBF908C1392 4193409281 322 992 0 ../../../../boost/throw_exception.hpp 0 0 <string>configuration macros</string> 1 2 (:include include:) (:auto also:) 0 23 reno_context 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 10E31FFA267B250065A2630D0B7107862920D940AEA0A5499D5341A902AE01FF 1524325002 368 13033 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>rethrow_exception</string> 1 2 (:include include:) (:auto also:) 0 24 reno_context 0 1 <string>using virtual inheritance in exception types</string> 1 2 (:include include:) (:auto also:) 0 25 reno_context 1 56C5A51DE37A6E893DA3B25D69DB65E4593C7803C6E34112E1F95C93D6037A82 275305396 5586 321 0 ../../../../boost/exception/info.hpp 0 0 <string>boost/exception/info.hpp</string> 1 2 (:include include:) (:auto also:) 0 26 reno_context 1 66E0BD9724AB83012F5B35D887E3313960DC0E69B94E0C03CA1F3C85A0D84A5C 2883671483 311 306 0 ../../example/logging.cpp 0 0 <string>diagnostic information</string> tutorial_diagnostic_information 1 2 (:include include:) (:auto also:) 0 27 reno_context 2 1B4417301AE3C0338C22E6D497391F51ABD459E521E7DFCE59A6EEC1372D33C2 202224383 1766 616 E0A17503B42EE12F31548A7D20F89916D734CE88B30A1BF6F9FC2D1F83A8B6F4 3410340567 1734 26 0 ../../../../boost/exception/info_tuple.hpp 0 0 <string>tuple/operator<<</string> 1 2 (:include include:) (:auto also:) 0 28 reno_context 1 3B52D5850D9664639CCF1D22FBD52F2EB99087BED704C3FE07FE185B38C0DD09 676740550 15108 321 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>boost/exception_ptr.hpp</string> 1 2 (:include include:) (:auto also:) 0 29 reno_context 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 EEDBDE62A278D2AF428D9D1ED2ABCFF06163BACD91E12DD033565C7043354B89 246173488 248 1396 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>original_exception_type</string> 1 2 (:include include:) (:auto also:) 0 30 reno_context 0 1 <string>transporting of exceptions between threads</string> tutorial_exception_ptr 1 2 (:include include:) (:auto also:) 0 31 reno_context 1 FC684D0DD5A9732B4130F2AB3DB6E0491D0F523E14B7FB738B2019EA2C7F8717 2229778754 631 319 0 ../../example/cloning_2.cpp 0 0 <string>cloning and re-throwing an exception</string> cloning_and_rethrowing 0 0 32 reno_context 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 DF9EA87B0140AACF4422F1B76F6A6A409C15F32858BBBA85A35981A824C56BA9 1137981799 192 11964 0 ../../../../boost/exception/exception.hpp 0 0 <string>enable_current_exception</string> 1 2 (:include include:) (:auto also:) 0 33 reno_context 1 197F3960CFF5CBDEF7BDA8D0DE60948A5328F229C6710FEDE656530A3116B29B 742102996 475 1316 0 ../../../../boost/throw_exception.hpp 0 0 <string>BOOST_THROW_EXCEPTION</string> 1 2 (:include include:) (:auto also:) 0 34 reno_context 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 17E691632123EB67BA67D590B49EB8094F462F5A10A66A1C5438E1867EF1478E 765399792 77 7076 0 ../../../../boost/exception/exception.hpp 0 0 <string>exception::~exception</string> exception_destructor 1 2 (:include include:) (:auto also:) 0 35 reno_context 0 1 <string>Headers</string> headers 1 2 (:include include:) (:auto also:) 0 36 reno_context 0 1 <string>boost/exception/enable_current_exception.hpp</string> 1 2 (:include include:) (:auto also:) 0 37 reno_context 1 422CF2A57EA6763FBD2F319C4CDD8DD5ADF4493C699B50653015A362F71D4500 1282485161 2161 321 0 ../../../../boost/exception/info_tuple.hpp 0 0 <string>boost/exception/info_tuple.hpp</string> 1 2 (:include include:) (:auto also:) 0 38 reno_context 2 2F10A76F9BA78353597A5E6F1373E8188DE7AEFDCE29BFD0105527B64B37D00E 1041541496 4693 1606 20B46D7510ED9F1F40CF3A80C97AE430628745D26173DE91E3D6CB6CEABDAA58 2572596214 659 4028 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 <string>diagnostic_information_what</string> 1 2 (:include include:) (:auto also:) 0 39 reno_context 1 F971041F60D19AFB8AA50440BC2A911633E5826FDED7B3E1CFC90D241D880C32 931174095 3062 95 0 ../../../../boost/throw_exception.hpp 0 0 <string>boost/throw_exception.hpp</string> 1 2 (:include include:) (:auto also:) 0 40 reno_context 1 979343A73CAA7601AF159E6240A03038F47940F71F6DE85D6BA648B179921C35 2321681356 939 321 0 ../../../../boost/exception/errinfo_errno.hpp 0 0 <string>boost/exception/errinfo_errno.hpp</string> 1 2 (:include include:) (:auto also:) 0 41 reno_context 2 21027A2B73C9AA6FF083752A952D63BBA9B5FD68A3C8915965A7184EA62A5D61 1523356166 537 623 24256E1CE56594FB38D0630858B8947191827CFC57771E8727A6A56F76207454 665917505 66 26 0 ../../../../boost/exception/errinfo_errno.hpp 0 0 <string>errinfo_errno</string> 1 2 (:include include:) (:auto also:) 0 42 reno_context 1 F2E44174DE588C19C0172D82AD61322E6B6578ADBE2A631C6C8059CB84396D97 670214046 684 321 0 ../../../../boost/exception/current_exception_cast.hpp 0 0 <string>boost/exception/current_exception_cast.hpp</string> 1 2 (:include include:) (:auto also:) 0 43 reno_context 1 756A81C65A938BEEAD9B576707145748A3DB3BF767CC77ADD5AACD549373856A 904132245 744 363 0 ../../example/info_tuple.cpp 0 0 <string>adding grouped data to exceptions</string> grouping_data 0 0 44 reno_context 1 4EDD3DF2332B6D9D22AC9AD90B850ACC715A24DD466E675014CBED25C63C255F 4175717823 328 323 0 ../../../../boost/exception/errinfo_type_info_name.hpp 0 0 <string>boost/exception/errinfo_type_info_name.hpp</string> 1 2 (:include include:) (:auto also:) 0 45 reno_context 0 1 <string>exception types as simple semantic tags</string> 1 2 (:include include:) (:auto also:) 0 46 reno_context 1 91CF203512705C8B2CDCBCD1439821CBF93CFC1A4C2EA2CA91F38DAA3F7720B2 1769665510 1558 352 0 ../../example/errinfos.cpp 0 0 <string>errinfos example</string> 0 0 47 reno_context 2 8A8FAA48FF123031D5E51D50BC96D0AAC468112838058976B85AC6EED4A25C57 4201574956 763 833 AEA5C07CF015DDE792E061003F669239E7AADBD24BE554EB26706AD9B28B8C89 2503775994 472 285 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 <string>current_exception_diagnostic_information</string> 1 2 (:include include:) (:auto also:) 0 48 reno_context 2 307034E20863A00923777A60D9495B4076B7F917D5B97203025299060F0833E0 3948311309 396 344 F8ED2052577830AC0C515EC5932BB14445DD5DA714782281FCDB1776961FECB1 3880328768 82 308 0 ../../../../boost/exception/errinfo_file_name.hpp 0 0 <string>errinfo_file_name</string> 1 2 (:include include:) (:auto also:) 0 49 reno_context 0 1 <string>transporting of arbitrary data to the catch site</string> tutorial_transporting_data 1 2 (:include include:) (:auto also:) 0 50 reno_context 1 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 0 ../../../../boost/exception/exception.hpp 0 0 <string>boost/exception/exception.hpp</string> 1 2 (:include include:) (:auto also:) 0 51 reno_context 1 D32E0E4334CE0236B6EDB0EAC484B2DD595860E9FD53701EB5646D62C6A45D4E 1054670543 866 306 0 ../../example/error_info_2.cpp 0 0 <string>adding of arbitrary data to active exception objects</string> adding_data_later 0 0 52 reno_context 3 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 98B33BE76679E3A4831241335CD5DFF6F634429F36BABF96C1D4DC2296C5ECC5 1584672077 208 259 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 <string>error_info::value</string> 1 2 (:include include:) (:auto also:) 0 53 reno_context 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 96DA9A7E983733685FB1D74C8ABF58EA409CCA42F8522A9775E15BC0C93DB87B 3668840260 2638 4436 0 ../../../../boost/exception/exception.hpp 0 0 <string>exception</string> 1 2 (:include include:) ---- !!!See Also: (:pagelist link="backlink" except_tags="exception member noalso" mod="w" fmt="h":) 0 54 reno_context 2 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 <string>error_info</string> 1 2 (:include include:) (:auto also:) 0 55 reno_context 2 C6DDF7D02A058403B7BD295CF1561F167D92B7DA1DAC4EBE9F801955264180EB 1656366188 5040 767 6E325144EF4F41FA3A225EB30729101382C4E99B3D6160E307311E4B4E641010 1097215175 161 422 0 ../../../../boost/exception/info.hpp 0 0 <string>error_info::error_info</string> 1 2 (:include include:) (:auto also:) 0 56 reno_context 1 790A065B0168021FAD180E996254E3CDBC0360D22D3FCB83C143416663D85402 1376868984 262 323 0 ../../../../boost/exception/errinfo_nested_exception.hpp 0 0 <string>boost/exception/errinfo_nested_exception.hpp</string> 1 2 (:include include:) (:auto also:) 0 57 reno_context 0 1 <string>Motivation</string> motivation 7 2 (:include include:) (:auto also explicit=" 1 0 -45 2 1 0 58 reno_context 1 C95CEF2E9D0BAA1E950509471062916DB849A46A19F7692BA478030E79B338EB 1917376632 706 408 0 ../../example/enable_error_info.cpp 0 0 <string>integrating boost exception in existing exception class hierarchies</string> tutorial_enable_error_info 2 1 0 -17 2 ":) 0 -58 1 2 (:include include:) (:auto also:) 0 59 reno_context 1 21A43755562CB78B3FFCC49F66B457C1FCD659EE98F25BBFA8DDE453EB89DF0E 2576704708 337 323 0 ../../../../boost/exception/errinfo_api_function.hpp 0 0 <string>boost/exception/errinfo_api_function.hpp</string> 1 2 (:include include:) (:auto also:) 0 60 reno_context 1 4D7009F0868C1DF4898EC6ECF9AD2CFEA98E8653B01B066106761807405D4C22 1416707852 3107 543 0 ../../../../boost/exception/get_error_info.hpp 0 0 <string>boost/exception/get_error_info.hpp</string> 1 2 (:include include:) (:auto also:) 0 61 reno_context 0 1 <string>Macros</string> macros 1 2 (:include include:) (:auto also:) 0 62 reno_context 3 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 2482DDAF6A7E31CF75E93B993C86D9814A0B8899B68E555B23D411BD195FE270 1574307697 8349 4068 7E162EB263369C2C485D5F69CA1A4FADD3EEBC6EB78CE7A767A8615885178079 1179386730 5404 2935 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>current_exception</string> 1 2 (:include include:) (:auto also:) 0 63 reno_context 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 F3FB15CD82336271C6E875BC620385322777D16F0B7C233300783CE35710CCBF 3292878997 282 9470 0 ../../../../boost/exception/exception.hpp 0 0 <string>enable_error_info</string> 1 2 (:include include:) (:auto also:) 0 64 reno_context 1 0CA48A4674CA9C409FF164D9A1B261FB48B0916C0EA387DF2F00DC4637E769BD 348807582 6078 321 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 <string>boost/exception/diagnostic_information.hpp</string> 1 2 (:include include:) (:auto also:) 0 65 reno_context 1 27ED18F9B6131B084FEF0C9F932B7027AF449E378B5FD7973CD6642263FCAF27 2867102400 404 307 0 ../../example/cloning_1.cpp 0 0 <string>using enable_current_exception at the time of the throw</string> using_enable_cloning 0 0 66 reno_context 1 66EFC83C830F0B00D0C9399B475099072E2674B3C694F9152645A33E3D7AC303 561674611 417 323 0 ../../../../boost/exception/errinfo_file_name.hpp 0 0 <string>boost/exception/errinfo_file_name.hpp</string> 1 2 (:include include:) (:auto also:) 0 67 reno_context 2 FD7792C2929DD7B6BD613636FD0C574D002286E33811BA109B57B9C4D790D340 1830643656 1244 1793 BAE73EEDFF4059A7561888B4BA054DFA033F0967727630270F2C0D4EB918B88D 3168166030 1222 21 0 ../../../../boost/throw_exception.hpp 0 0 <string>throw_exception</string> 1 2 (:include include:) (:auto also:) 0 68 reno_context 2 D58AD357499A5A09FB5D12397CFFC2FFD412AC8A307ABB59C9BC53ACCA3B959D 2209414553 2926 724 49F40FF20D66B205C908A8F10BC61DE1BC571E4917A5BD0B4115E3F7FE3923FA 638776689 2894 26 0 ../../../../boost/exception/get_error_info.hpp 0 0 <string>get_error_info</string> 1 2 (:include include:) (:auto also:) 0 69 reno_context 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 1D5E771272B020A105B69E186517499873571F62AFF9D48F130C952CFAA12FA3 2841506107 891 173 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>exception_ptr</string> 1 2 (:include include:) (:auto also:) 0 70 reno_context 2 EEA69AA1E84CB2B7C903A3F4C236D0A233D03DBA4BA1D3B97D959918F3B30E09 2728032055 406 344 EE695B95A2499B66980754857E184776F1DE7224372A5F5153B6DF94E621A89B 1009590890 92 308 0 ../../../../boost/exception/errinfo_file_open_mode.hpp 0 0 <string>errinfo_file_open_mode</string> 1 2 (:include include:) (:auto also:) 0 71 reno_context 2 6FB85B536F965F137409D5B5D34786DCBF0B9957A7C251D271B717A1156B823D 1090406464 362 543 D16DAEA8B1792A019AF7FCA362FDC6EFD381AF4C43C076A01C029ECE51F994A6 3172941848 330 26 0 ../../../../boost/exception/current_exception_cast.hpp 0 0 <string>current_exception_cast</string> 1 2 (:include include:) (:auto also:) 0 72 reno_context 1 DB156E6A8ACB9FB90C8FB110FC25A5FEB14A619F82EEC47FF913373592E5CC3E 240075319 6209 412 0 ../../example/example_io.cpp 0 0 <string>diagnostic_information example</string> 0 0 73 reno_context 2 E0BE7EFCD5550582AB95C9EEDA6E68CA0F89B19838DA61876D42161E1EA4AE71 2587249979 233 323 92AB508A6B1C2A62CB2ACED423BD04BB5A471674B5A51BFC1E6FB1F5C92AF9AA 2372475309 70 157 0 ../../../../boost/exception/errinfo_at_line.hpp 0 0 <string>errinfo_at_line</string> 1 2 (:include include:) (:auto also:) 0 74 reno_context 0 1 <string>page index</string> page_idx 1 2 (:include include:) (:auto also:) 0 75 reno_context 1 977045132A532A0071B0B53F737D85367CE9A331402F96790E45B3B6F2FC88A6 1875939463 529 382 0 ../../example/error_info_1.cpp 0 0 <string>adding of arbitrary data at the point of the throw</string> adding_data_at_throw 0 0 76 reno_context 1 DE766B811244919E8E1EA54FC747A8487BCE57F1AB592932640FC90428B617A5 414875037 427 323 0 ../../../../boost/exception/errinfo_file_open_mode.hpp 0 0 <string>boost/exception/errinfo_file_open_mode.hpp</string> 1 2 (:include include:) (:auto also:) 0 77 reno_context 3 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 97DB2EDAA38019314BA1A582664F8950F5208310F14BAB94E1880AE2C5F00CD4 3076716310 959 2974 1760DA943E0DCAE6DDB000F3C08D6E6F5F8AEDBBEAC7CAA84A2ED60BFA4B0E1A 702729709 815 145 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 <string>unknown_exception</string> 1 2 (:include include:) (:auto also:) 0 78 reno_context 0 1 <string>boost/exception/enable_error_info.hpp</string> 1 2 (:include include:) (:auto also:) 0 79 reno_context 2 126A895281064E2195458B8A47CD73DB7E3BE3608F250925E07AF4230CBDDE1D 4231421785 307 344 16179B125E2BC6D993FBE4BA5E9A96DBAE43CA1443C7D281B659D020B6725983 1126376090 92 209 0 ../../../../boost/exception/errinfo_type_info_name.hpp 0 0 <string>errinfo_type_info_name</string> 1 2 (:include include:) (:auto also:) def 80 reno_layer 75 0 -5 5 2 [@typedef (:link 1 0 -54 2 :)<struct errinfo_api_function_,char const *> (:link 1 0 -5 2 :);@] 0 -6 0 0 -7 0 0 -8 0 0 -9 0 0 -10 0 0 -11 0 0 -12 0 0 -13 0 0 -14 7 2 [@typedef (:link 1 0 -54 2 :)<struct errinfo_nested_exception_,(:link 1 0 -69 2 :)> (:link 1 0 -14 2 :);@] 0 -15 0 0 -16 5 2 [@typedef (:link 1 0 -54 2 :)<struct errinfo_file_handle_,weak_ptr<FILE> > (:link 1 0 -16 2 :);@] 0 -17 0 0 -18 0 0 -19 0 0 -20 0 0 -21 0 0 -22 0 0 -23 0 0 -24 0 0 -25 0 0 -26 0 0 -27 0 0 -28 0 0 -29 0 0 -30 0 0 -31 0 0 -32 0 0 -33 0 0 -34 0 0 -35 0 0 -36 0 0 -37 0 0 -38 0 0 -39 0 0 -40 0 0 -41 5 2 [@typedef 1 0 -54 2 <struct errinfo_errno_,int> 1 0 -41 2 ;@] 0 -42 0 0 -43 0 0 -44 0 0 -45 0 0 -46 0 0 -47 0 0 -48 5 2 [@typedef (:link 1 0 -54 2 :)<struct errinfo_file_name_,std::string> (:link 1 0 -48 2 :);@] 0 -49 0 0 -50 0 0 -51 0 0 -52 0 0 -53 7 2 [@class (:link 1 0 -53 2 :) { protected: (:include 1 0 -20 2 decl pre_indent="4":) (:include 1 0 -34 2 decl pre_indent="4":) };@] 0 -54 9 2 [@template <class Tag,class T> class (:link 1 0 -54 2 :) { public: (:include 1 0 -9 2 decl pre_indent="4":) (:include 1 0 -55 2 decl pre_indent="4":) (:include 1 0 -52 2 decl pre_indent="4":) };@] 0 -55 0 0 -56 0 0 -57 0 0 -58 0 0 -59 0 0 -60 0 0 -61 0 0 -62 0 0 -63 0 0 -64 0 0 -65 0 0 -66 0 0 -67 0 0 -68 0 0 -69 0 0 -70 5 2 [@typedef 1 0 -54 2 <struct errinfo_file_open_mode_,std::string> 1 0 -70 2 ;@] 0 -71 0 0 -72 0 0 -73 5 2 [@typedef (:link 1 0 -54 2 :)<struct errinfo_at_line_,int> (:link 1 0 -73 2 :);@] 0 -74 0 0 -75 0 0 -76 0 0 -77 0 0 -78 0 0 -79 5 2 [@typedef 1 0 -54 2 <struct errinfo_type_info_name_,std::string> 1 0 -79 2 ;@] api 81 reno_layer 75 0 -5 0 0 -6 0 0 -7 3 2 [@(:include 1 0 -16 2 def:)@] 0 -8 0 0 -9 0 0 -10 0 0 -11 33 2 [@#include <(:link 1 0 -64 2 :)> #include <(:link 1 0 -18 2 :)> #include <(:link 1 0 -50 2 :)> #include <(:link 1 0 -60 2 :)> #include <(:link 1 0 -25 2 :)> #include <(:link 1 0 -37 2 :)> #include <(:link 1 0 -59 2 :)> #include <(:link 1 0 -15 2 :)> #include <(:link 1 0 -40 2 :)> #include <(:link 1 0 -7 2 :)> #include <(:link 1 0 -66 2 :)> #include <(:link 1 0 -76 2 :)> #include <(:link 1 0 -44 2 :)> #ifndef (:link 1 0 -22 2 |BOOST_NO_EXCEPTIONS:) #include <(:link 1 0 -56 2 :)> #include <(:link 1 0 -28 2 :)> #endif@] 0 -12 0 0 -13 0 0 -14 0 0 -15 3 2 [@(:include 1 0 -73 2 def:)@] 0 -16 0 0 -17 0 0 -18 3 2 [@(:include 1 0 -54 2 decl:)@] 0 -19 0 0 -20 0 0 -21 0 0 -22 0 0 -23 0 0 -24 0 0 -25 5 2 [@(:include 1 0 -54 2 def:) (:include 1 0 -19 2 decl:)@] 0 -26 0 0 -27 0 0 -28 13 2 [@(:include 1 0 -77 2 decl:) (:include 1 0 -29 2 decl:) (:include 1 0 -69 2 decl:) (:include 1 0 -12 2 decl:) (:include 1 0 -62 2 decl:) (:include 1 0 -23 2 decl:)@] 0 -29 0 0 -30 0 0 -31 0 0 -32 0 0 -33 0 0 -34 0 0 -35 0 0 -36 3 2 [@(:include 1 0 -32 2 decl:)@] 0 -37 3 2 [@(:include 1 0 -27 2 decl:)@] 0 -38 0 0 -39 5 2 [@(:include 1 0 -33 2 decl:) namespace boost { (:include 1 0 -67 2 decl:) }@] 0 -40 3 2 [@(:include 1 0 -41 2 def:)@] 0 -41 0 0 -42 3 2 [@(:include 1 0 -71 2 decl:)@] 0 -43 0 0 -44 3 2 [@(:include 1 0 -79 2 def:)@] 0 -45 0 0 -46 0 0 -47 0 0 -48 0 0 -49 0 0 -50 11 2 [@(:include 1 0 -53 2 def:) (:include 1 0 -54 2 decl:) typedef (:link 1 0 -54 2 :)<struct throw_function_,char const *> throw_function; typedef (:link 1 0 -54 2 :)<struct throw_file_,char const *> throw_file; typedef (:link 1 0 -54 2 :)<struct throw_line_,int> throw_line;@] 0 -51 0 0 -52 0 0 -53 0 0 -54 0 0 -55 0 0 -56 3 2 [@(:include 1 0 -14 2 def:)@] 0 -57 0 0 -58 0 0 -59 3 2 [@(:include 1 0 -5 2 def:)@] 0 -60 3 2 [@(:include 1 0 -68 2 decl:)@] 0 -61 0 0 -62 0 0 -63 0 0 -64 7 2 [@(:include 1 0 -13 2 decl:) (:include 1 0 -38 2 decl:) (:include 1 0 -47 2 decl:)@] 0 -65 0 0 -66 3 2 [@(:include 1 0 -48 2 def:)@] 0 -67 0 0 -68 0 0 -69 0 0 -70 0 0 -71 0 0 -72 0 0 -73 0 0 -74 0 0 -75 0 0 -76 3 2 [@(:include 1 0 -70 2 def:)@] 0 -77 0 0 -78 3 2 [@(:include 1 0 -63 2 decl:)@] 0 -79 0 decl 82 reno_layer 75 0 -5 0 0 -6 0 0 -7 0 0 -8 0 0 -9 3 2 [@typedef T (:link 1 0 -9 2 mod="m":);@] 0 -10 0 0 -11 0 0 -12 5 2 [@template <class T> (:link 1 0 -69 2 :) (:link 1 0 -12 2 :)( T const & e );@] 0 -13 7 2 [@template <class E> std::string (:link 1 0 -13 2 :)( E const & e, bool verbose=true ); std::string (:link 1 0 -13 2 :)( (:link 1 0 -69 2 :) const & p, bool verbose=true );@] 0 -14 0 0 -15 0 0 -16 0 0 -17 0 0 -18 0 0 -19 5 2 [@template <class E, class Tag, class T> E const & (:link 1 0 -19 2 mod="/":)( E const & x, (:link 1 0 -54 2 :)<Tag,T> const & v );@] 0 -20 7 2 [@(:link 1 0 -20 2 mod="m":)(); (:link 1 0 -20 2 mod="m":)( (:link 1 0 -53 2 :) const & x );@] 0 -21 0 0 -22 0 0 -23 5 2 [@void (:link 1 0 -23 2 :)( (:link 1 0 -69 2 :) const & ep ); 0 -24 0 0 -25 0 0 -26 0 0 -27 7 2 [@template <class E, class Tag1, class T1, ..., class TagN, class TN> E const & (:link 1 0 -27 2 mod="/":)( E const & x, (:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)< (:link 1 0 -54 2 :)<Tag1,T1>, ..., (:link 1 0 -54 2 :)<TagN,TN> > const & v );@] 0 -28 0 0 -29 5 2 [@typedef (:link 1 0 -54 2 :)<struct tag_original_exception_type,std::type_info const *> 1 0 -29 2 ;@] 0 -30 0 0 -31 0 0 -32 3 2 [@template <class T> ---unspecified--- (:link 1 0 -32 2 :)( T const & e );@] 0 -33 21 2 [@#if !defined( BOOST_EXCEPTION_DISABLE ) #include <(:link 1 0 -50 2 :)> #include <boost/current_function.hpp> #define (:link 1 0 -33 2 :)(x)\ ::boost::(:link 1 0 -67 2 :)( ::boost::(:link 1 0 -63 2 :)(x) <<\ ::boost::(:link 1 0 -50 2 |throw_function:)((:link 1 0 -22 2 |BOOST_THROW_EXCEPTION_CURRENT_FUNCTION:)) <<\ ::boost::(:link 1 0 -50 2 |throw_file:)(__FILE__) <<\ ::boost::(:link 1 0 -50 2 |throw_line:)((int)__LINE__) ) #else #define (:link 1 0 -33 2 :)(x) ::boost::(:link 1 0 -67 2 :)(x) #endif@] 0 -34 3 2 [@(:link 1 0 -34 2 mod="m":)();@] 0 -35 0 0 -36 0 0 -37 0 0 -38 5 2 [@char const * (:link 1 0 -38 2 :)( boost::(:link 1 0 -53 2 :) const & e, bool verbose=true ) throw();@] 0 -39 0 0 -40 0 0 -41 0 0 -42 0 0 -43 0 0 -44 0 0 -45 0 0 -46 0 0 -47 3 2 [@std::string (:link 1 0 -47 2 :)();@] 0 -48 0 0 -49 0 0 -50 0 0 -51 0 0 -52 9 2 [@(:link 1 0 -9 2 mod="m":) const & (:link 1 0 -52 2 mod="m":)() const; (:link 1 0 -9 2 mod="m":) & (:link 1 0 -52 2 mod="m":)();@] 0 -53 3 2 [@class (:link 1 0 -53 2 :);@] 0 -54 3 2 [@template <class Tag,class T> class (:link 1 0 -54 2 :);@] 0 -55 5 2 [@(:link 1 0 -55 2 mod="m":)( (:link 1 0 -9 2 mod="m":) const & v );@] 0 -56 0 0 -57 0 0 -58 0 0 -59 0 0 -60 0 0 -61 0 0 -62 5 2 [@(:link 1 0 -69 2 :) (:link 1 0 -62 2 :)();@] 0 -63 3 2 [@template <class T> ---unspecified--- (:link 1 0 -63 2 :)( T const & x );@] 0 -64 0 0 -65 0 0 -66 0 0 -67 5 2 [@#ifdef BOOST_NO_EXCEPTIONS void (:link 1 0 -67 2 :)( std::exception const & e ); // user defined #else template <class E> void (:link 1 0 -67 2 :)( E const & e ); #endif@] 0 -68 1 2 [@template <class ErrorInfo,class E> typename ErrorInfo::(:link error_info::value_type mod="m":) const * (:link get_error_info:)( E const & x ); template <class ErrorInfo,class E> typename ErrorInfo::(:link error_info::value_type mod="m":) * (:link get_error_info:)( E & x );@] 0 -69 3 2 [@typedef ---unspecified--- (:link 1 0 -69 2 :);@] 0 -70 0 0 -71 3 2 [@template <class E> E * 1 0 -71 2 ();@] 0 -72 0 0 -73 0 0 -74 0 0 -75 0 0 -76 0 0 -77 5 2 [@class (:link 1 0 -77 2 :): public std::exception public boost:: 1 0 -53 2 { ---unspecified--- };@] 0 -78 0 0 -79 0 include 83 reno_layer 75 0 -5 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting the name of a relevant API function (which does not use exceptions to report errors) in exceptions deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -6 69 2 !!Introduction The purpose of Boost Exception is to ease the design of exception class hierarchies and to help write exception handling and error reporting code. It supports transporting of arbitrary data to the catch site, which is otherwise tricky due to the no-throw requirements (15.5.1) for exception types. Data can be added to any exception object, either directly in the throw-expression (15.1), or at a later time as the exception object propagates up the call stack. The ability to add data to exception objects after they have been passed to throw is important, because often some of the information needed to handle an exception is unavailable in the context where the failure is detected. Boost Exception also supports (:link http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html|N2179:)-style (:link 1 0 -30 2 |copying:) of exception objects, implemented non-intrusively and automatically by the boost::(:link 1 0 -67 2 :) function. !!Contents #(:link 1 0 -57 2 :) #Tutorial ##(:link 1 0 -49 2 mod="w":) ##(:link 1 0 -58 2 mod="w":) ##(:link 1 0 -30 2 mod="w":) ##(:link 1 0 -45 2 mod="w":) ##(:link 1 0 -24 2 mod="w":) ##(:link 1 0 -26 2 mod="w":) #Documentation ##Class (:link 1 0 -53 2 :) ##Throwing Exceptions ###(:link 1 0 -33 2 :) ###(:link 1 0 -67 2 :) ##Transporting of Arbitrary Data to the Catch Site ###(:link 1 0 -54 2 :) ###(:link 1 0 -19 2 :) ###(:link 1 0 -27 2 :) ###(:link 1 0 -68 2 :) ###(:link 1 0 -63 2 :) ##(:link http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html|N2179:) Transporting of Exceptions between Threads ###(:link 1 0 -69 2 :) ###(:link 1 0 -32 2 :) ###(:link 1 0 -62 2 :) ###(:link 1 0 -12 2 :) ###(:link 1 0 -23 2 :) ###(:link 1 0 -77 2 :) ##Diagnostic Information ###(:link 1 0 -13 2 :) ###(:link 1 0 -47 2 :) ##(:link 1 0 -71 2 :) #API ##(:link 1 0 -21 2 :) ##(:link 1 0 -35 2 :) ##(:link 1 0 -8 2 :) ##(:link 1 0 -10 2 :) ##(:link 1 0 -61 2 :) ##(:link 1 0 -22 2 mod="w":) #(:link 1 0 -17 2 mod="w":) #(:link 1 0 -74 2 mod="w":) !!!Acknowledgements Thanks to Peter Dimov for his continuing help. Also thanks to Tobias Schwinger, Tom Brinkman, Pavel Vozenilek and everyone who participated in the review process. 0 -7 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -8 1 2 (:auto !!:) (:pagelist fmt="index" tags="type":) 0 -9 5 2 (:auto !!!:) (:include synopsis:) !!!!Definition: The expression 1 0 -54 2 <Tag,T>::(:link 1 0 -9 2 mod="m":) evaluates to T. 0 -10 1 2 (:auto !!:) (:pagelist fmt="index" tags="function":) 0 -11 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -12 5 2 (:auto !!!:) (:include synopsis:) !!!!Effects: As if [@try { throw 1 0 -32 2 (e); } catch(...) { return (:link 1 0 -62 2 :)(); }@] 0 -13 39 2 (:auto !!!:) (:include synopsis:) !!!!Returns: A string value that contains varying amount of diagnostic information about the passed object: * If E can be statically converted to either boost::(:link 1 0 -53 2 :) or to std::exception, dynamic_cast is used to access both the boost::(:link 1 0 -53 2 :) and std::exception subobjects of e; otherwise, the boost::(:link 1 0 -13 2 :) template is not available. * The returned value contains the string representations of all (:link 1 0 -54 2 :) objects stored in the boost::(:link 1 0 -53 2 :) subobject through (:link 1 0 -19 2 mod="/":). * In addition, if verbose is true, it contains other diagnostic information relevant to the exception, including the string returned by std::exception::what(). The string representation of each (:link 1 0 -54 2 :) object is deduced by an unqualified call to to_string(x), where x is of type (:link 1 0 -54 2 :)<Tag,T>, for which Boost Exception defines a generic overload. It converts x.(:link 1 0 -52 2 mod="m":)() to string, attempting to bind (at the time the (:link 1 0 -54 2 :)<Tag,T> template is instantiated) the following functions in order: #Unqualified call to to_string(x.(:link 1 0 -52 2 mod="m":)()) (the return value is expected to be of type std::string.) #Unqualified call to s << x.(:link 1 0 -52 2 mod="m":)(), where s is a std::ostringstream. The first successfully bound function is used at the time (:link 1 0 -13 2 :) is called; if both overload resolutions are unsuccessful, the system is unable to convert the (:link 1 0 -54 2 :) object to string, and ''an unspecified stub string value is used without issuing a compile error.'' The (:link 1 0 -69 2 :) overload of (:link 1 0 -13 2 :) is equivalent to: [@if( p ) try { (:link 1 0 -23 2 :)(p); } catch(...) { return (:link 1 0 -47 2 :)(verbose); } else return <unspecified-string-value>;@] (:include 1 0 -72 2 :) 0 -14 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting (in exceptions deriving from boost::(:link 1 0 -53 2 :)) an 1 0 -69 2 to an exception nested into another exception. 0 -15 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -16 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting a relevant FILE pointer managed by a boost::shared_ptr<FILE> in exceptions deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -17 81 2 (:auto !!:) !!!What is the cost of calling boost::throw_exception? The cost is that boost::(:link 1 0 -53 2 :) is added as a base of the exception emitted by boost::(:link 1 0 -67 2 :) (unless the passed type already derives from boost::(:link 1 0 -53 2 :).) Calling boost::(:link 1 0 -67 2 :) does not cause dynamic memory allocations. !!!What is the cost of BOOST_THROW_EXCEPTION? In addition to calling boost::(:link 1 0 -67 2 :), 1 0 -33 2 invokes __FILE__, __LINE__ and the (:link 1 0 -22 2 |BOOST_THROW_EXCEPTION_CURRENT_FUNCTION:) macros. The space required to store the information is already included in sizeof(boost::(:link 1 0 -53 2 :)). Calling 1 0 -33 2 does not cause dynamic memory allocations. !!!Should I use boost::throw_exception or BOOST_THROW_EXCEPTION or just throw? The benefit of calling boost::(:link 1 0 -67 2 :) instead of using throw directly is that it ensures that the emitted exception derives from boost::(:link 1 0 -53 2 :) and that it is compatible with boost::(:link 1 0 -62 2 :). The (:link 1 0 -33 2 :) macro also results in a call to boost::(:link 1 0 -67 2 :), but in addition it records in the exception object the __FILE__ and __LINE__ of the throw, as well as the pretty name of the function that throws. This enables boost::(:link 1 0 -13 2 :) to compose a more useful, if not user-friendly message. Typical use of boost::(:link 1 0 -13 2 :) is: [@catch(...) { std::cerr << "Unexpected exception, diagnostic information follows:\n" << 1 0 -47 2 (); }@] This is a possible message it may display -- the information in the first line is only available if (:link 1 0 -33 2 :) was used to throw: [@example_io.cpp(70): Throw in function class boost::shared_ptr<struct _iobuf> __cdecl my_fopen(const char *,const char *) Dynamic exception type: class boost::exception_detail::clone_impl<class fopen_error> std::exception::what: example_io error [struct boost::(:link 1 0 -5 2 :)_ *] = fopen [struct boost::(:link 1 0 -41 2 :)_ *] = 2, "No such file or directory" [struct boost::(:link 1 0 -48 2 :)_ *] = tmp1.txt [struct boost::(:link 1 0 -70 2 :)_ *] = rb@] In some development environments, the first line in that message can be clicked to show the location of the throw in the debugger, so it's easy to set a break point and run again to see the unexpected throw in the context of its call stack. !!!Why doesn't boost::exception derive from std::exception? Despite that (:link 1 0 -24 2 |virtual inheritance should be used in deriving from base exception types:), quite often exception types (including the ones defined in the standard library) don't derive from std::exception virtually. If boost::(:link 1 0 -53 2 :) derives from std::exception, using the (:link 1 0 -63 2 :) function with such user-defined types would introduce dangerous ambiguity which would break all catch(std::exception &) statements. Of course, boost::(:link 1 0 -53 2 :) should not be used to replace std::exception as a base type in exception type hierarchies. Instead, it should be included as a virtual base, in addition to std::exception (which should probably also be derived virtually.) !!!Why is boost::exception abstract? To prevent exception-neutral contexts from erroneously erasing the type of the original exception when adding (:link 1 0 -54 2 :) to an active exception object: [@catch( boost::(:link 1 0 -53 2 :) & e ) { e (:link 1 0 -19 2 |<<:) foo_info(foo); throw e; //Compile error: boost::(:link 1 0 -53 2 :) is abstract }@] The correct code is: [@catch( boost::(:link 1 0 -53 2 :) & e ) { e (:link 1 0 -19 2 |<<:) foo_info(foo); throw; //Okay, re-throwing the original exception object. }@] !!!Why use operator<< overload for adding info to exceptions? Before throwing an object of type that derives from boost::(:link 1 0 -53 2 :), it is often desirable to add one or more (:link 1 0 -54 2 :) objects in it. The syntactic sugar provided by (:link 1 0 -19 2 mod="/":) allows this to be done directly in a throw expression: [@throw error() (:link 1 0 -19 2 |<<:) foo_info(foo) (:link 1 0 -19 2 |<<:) bar_info(bar);@] !!!Why is operator<< allowed to throw? This question is referring to the following issue. Consider this throw statement example: [@throw file_open_error() (:link 1 0 -19 2 |<<:) file_name(fn);@] The intention here is to throw a file_open_error, however if (:link 1 0 -19 2 mod="/":) fails to copy the std::string contained in the file_name (:link 1 0 -54 2 :) wrapper, a std::bad_alloc could propagate instead. This behavior seems undesirable to some programmers. Bjarne Stroustrup, The C++ Programming Language, 3rd Edition, page 371: ->''"Throwing an exception requires an object to throw. A C++ implementation is required to have enough spare memory to be able to throw bad_alloc in case of memory exhaustion. However, it is possible that throwing some other exception will cause memory exhaustion."'' Therefore, the language itself does not guarantee that an attempt to throw an exception is guaranteed to throw an object of the specified type; propagating a std::bad_alloc seems to be a possibility even outside of the scope of Boost Exception. 0 -18 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -19 7 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: E must be boost::(:link 1 0 -53 2 :), or a type that derives (indirectly) from boost::(:link 1 0 -53 2 :). !!!!Postcondition: A copy of v is stored into x. If x already contains data of type (:link 1 0 -54 2 :)<Tag,T>, that data is overwritten. Basic exception safety guarantee. !!!!Returns: x. (:include throws:) 0 -20 7 2 (:auto !!!:) (:include decl:) !!!!Effects: * Default constructor: initializes an empty boost::(:link 1 0 -53 2 :) object. * Copy constructor: initializes a boost::(:link 1 0 -53 2 :) object which shares ownership with x of all data added through (:link 1 0 -19 2 mod="/":), including data that is added at a future time. !!!!Throws: Nothing. 0 -21 77 2 !!Synopsis List of documented definitions, declarations and includes by header file: `#include <(:link 1 0 -50 2 :)> [@(:include 1 0 -50 2 synopsis:)@] `#include <(:link 1 0 -18 2 :)> [@(:include 1 0 -18 2 synopsis:)@] `#include <(:link 1 0 -25 2 :)> [@(:include 1 0 -25 2 synopsis:)@] `#include <(:link 1 0 -37 2 :)> [@(:include 1 0 -37 2 synopsis:)@] `#include <(:link 1 0 -78 2 :)> [@(:include 1 0 -78 2 synopsis:)@] `#include <(:link 1 0 -64 2 :)> [@(:include 1 0 -64 2 synopsis:)@] `#include <(:link 1 0 -42 2 :)> [@(:include 1 0 -42 2 synopsis:)@] `#include <(:link 1 0 -28 2 :)> [@(:include 1 0 -28 2 synopsis:)@] `#include <(:link 1 0 -36 2 :)> [@(:include 1 0 -36 2 synopsis:)@] `#include <(:link 1 0 -39 2 :)> [@(:include 1 0 -39 2 synopsis:)@] `#include <(:link 1 0 -59 2 :)> (:include 1 0 -59 2 synopsis:) `#include <(:link 1 0 -15 2 :)> (:include 1 0 -15 2 synopsis:) `#include <(:link 1 0 -40 2 :)> (:include 1 0 -40 2 synopsis:) `#include <(:link 1 0 -7 2 :)> (:include 1 0 -7 2 synopsis:) `#include <(:link 1 0 -66 2 :)> (:include 1 0 -66 2 synopsis:) `#include <(:link 1 0 -76 2 :)> (:include 1 0 -76 2 synopsis:) `#include < 1 0 -56 2 > (:include 1 0 -56 2 synopsis:) `#include <(:link 1 0 -44 2 :)> (:include 1 0 -44 2 synopsis:) `#include <(:link 1 0 -11 2 :)> (:include 1 0 -11 2 synopsis:) 0 -22 21 2 (:auto !!:) Boost Exception responds to the following configuration macros: '''BOOST_NO_RTTI'''\\ '''BOOST_NO_TYPEID''' The first macro prevents Boost Exception from using dynamic_cast and dynamic typeid. If the second macro is also defined, Boost Exception does not use static typeid either. There are no observable degrading effects on the library functionality, except for the following: ->By default, the (:link 1 0 -68 2 :) function template can be called with any exception type. If BOOST_NO_RTTI is defined, (:link 1 0 -68 2 :) can be used only with objects of type boost::(:link 1 0 -53 2 :). !!!!Note: The library needs RTTI functionality. Disabling the language RTTI support enables an internal RTTI system, which may have more or less overhead depending on the platform. '''BOOST_EXCEPTION_DISABLE''' By default, (:link 1 0 -32 2 :) and (:link 1 0 -63 2 :) are integrated directly in the (:link 1 0 -67 2 :) function. Defining BOOST_EXCEPTION_DISABLE disables this integration. Note that on some non-conformant compilers, for example MSVC 7.0 and older, as well as BCC, BOOST_EXCEPTION_DISABLE is implicitly defined in (:link 1 0 -39 2 :). '''BOOST_NO_EXCEPTIONS''' This macro disables exception handling in Boost, forwarding all exceptions to a user-defined non-template version of boost::(:link 1 0 -67 2 :). However, unless BOOST_EXCEPTION_DISABLE is also defined, users can still examine the exception object for any data added at the point of the throw, or use boost::(:link 1 0 -13 2 :) (of course under BOOST_NO_EXCEPTIONS, the user-defined boost::throw_exception is not allowed to return to the caller.) '''BOOST_THROW_EXCEPTION_CURRENT_FUNCTION''' The 1 0 -33 2 macro uses BOOST_THROW_EXCEPTION_CURRENT_FUNCTION to record the name of the current function in the exception object. Unless overridden by the user, BOOST_THROW_EXCEPTION_CURRENT_FUNCTION expands to BOOST_CURRENT_FUNCTION. 0 -23 1 2 (:auto !!!:) (:include synopsis:) !!!!Precondition: ep shall not be null. !!!!Throws: The exception to which ep refers. 0 -24 5 2 (:auto !!!:) Exception types should use virtual inheritance when deriving from other exception types. This insight is due to Andrew Koenig. Using virtual inheritance prevents ambiguity problems in the exception handler: [@#include <iostream> struct my_exc1 : std::exception { char const* what() const throw(); }; struct my_exc2 : std::exception { char const* what() const throw(); }; struct your_exc3 : my_exc1, my_exc2 {}; int main() { try { throw your_exc3(); } catch(std::exception const& e) {} catch(...) { std::cout << "whoops!" << std::endl; } }@] The program above outputs "whoops!" because the conversion to std::exception is ambiguous. The overhead introduced by virtual inheritance is always negligible in the context of exception handling. Note that virtual bases are initialized directly by the constructor of the most-derived-type (the type passed to the throw statement, in case of exceptions.) However, typically this detail is of no concern when boost::(:link 1 0 -53 2 :) is used, because it enables exception types to be trivial structs with no members (there's nothing to initialize.) See (:link 1 0 -45 2 mod="w":). 0 -25 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -26 19 2 (:auto !!:) Boost Exception provides a namespace-scope function (:link 1 0 -13 2 :) which takes a boost::(:link 1 0 -53 2 :). The returned string contains: *the string representation of all data objects added to the boost::(:link 1 0 -53 2 :) through (:link 1 0 -19 2 mod="/":); *the output from std::exception::what; *additional platform-specific diagnostic information. The returned string is not presentable as a friendly user message, but because it is generated automatically, it is useful for debugging or logging purposes. Here is an example: [@#include <(:link 1 0 -11 2 :)> #include <iostream> void f(); //throws unknown types that derive from boost::(:link 1 0 -53 2 :). void g() { try { f(); } catch( boost::(:link 1 0 -53 2 :) & e ) { std::cerr << (:link 1 0 -13 2 :)(e); } }@] (:include 1 0 -72 2 :) 0 -27 5 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: E must be boost::(:link 1 0 -53 2 :), or a type that derives (indirectly) from boost::(:link 1 0 -53 2 :). !!!!Effects: Equivalent to x << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<0>() << ... << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<N>(). !!!!Returns: x. (:include throws:) 0 -28 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -29 9 2 (:auto !!!:) (:include synopsis:) This 1 0 -54 2 typedef is used by 1 0 -62 2 if it defaults to returning an 1 0 -69 2 that refers to an object of type 1 0 -77 2 , to record in it the std::type_info of the original exception object. 0 -30 11 2 (:auto !!:) Boost Exception supports transporting of exception objects between threads through cloning. This system is similar to (:link http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html|N2179:), but because Boost Exception can not rely on language support, the use of (:link 1 0 -32 2 :) at the time of the throw is required in order to use cloning. !!!!Note: All exceptions emitted by the familiar function boost::(:link 1 0 -67 2 :) are guaranteed to derive from boost::(:link 1 0 -53 2 :) and to support cloning. (:include 1 0 -65 2 :) (:include 1 0 -31 2 :) 0 -31 37 2 (:auto !!!:) When you catch an exception, you can call (:link 1 0 -62 2 :) to get an (:link 1 0 -69 2 :) object: [@#include <(:link 1 0 -28 2 :)> #include <boost/thread.hpp> #include <boost/bind.hpp> void do_work(); //throws cloning-enabled boost::(:link 1 0 -53 2 :)s void worker_thread( boost::(:link 1 0 -69 2 :) & error ) { try { do_work(); error = boost::(:link 1 0 -69 2 :)(); } catch( ... ) { error = boost::(:link 1 0 -62 2 :)(); } }@] In the above example, note that (:link 1 0 -62 2 :) captures the original type of the exception object. The exception can be thrown again using the (:link 1 0 -23 2 :) function: [@// ...continued void work() { boost::(:link 1 0 -69 2 :) error; boost::(:link http://www.boost.org/doc/html/boost/thread.html|thread:) t( boost::(:link http://www.boost.org/libs/bind/bind.html|bind:)(worker_thread,boost::(:link http://www.boost.org/doc/html/ref.html|ref:)(error)) ); t.(:link http://www.boost.org/doc/html/boost/thread.html|join:)(); if( error ) boost::(:link 1 0 -23 2 :)(error); }@] Note that (:link 1 0 -62 2 :) could fail to copy the original exception object in the following cases: * if there is not enough memory, in which case the returned (:link 1 0 -69 2 :) points to an instance of std::bad_alloc, or * if (:link 1 0 -32 2 :) was not used in the throw-expression passed to the original throw statement and the current implementation does not have the necessary compiler-specific support to copy the exception automatically, in which case the returned (:link 1 0 -69 2 :) points to an instance of (:link 1 0 -77 2 :). Regardless, the use of (:link 1 0 -62 2 :) and (:link 1 0 -23 2 :) in the above examples is well-formed. 0 -32 21 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: * T must be a class with an accessible no-throw copy constructor. * If T has any virtual base types, those types must have an accessible default constructor. !!!!Returns: An object of ''unspecified'' type which derives publicly from T. That is, the returned object can be intercepted by a catch(T &). !!!!Description: This function is designed to be used directly in a throw-expression to enable the (:link 1 0 -69 2 :) support in Boost Exception. For example: [@class my_exception: public std::exception { }; .... throw boost::(:link 1 0 -32 2 :)(my_exception());@] Unless (:link 1 0 -32 2 :) is called at the time an exception object is used in a throw-expression, an attempt to copy it using (:link 1 0 -62 2 :) may return an (:link 1 0 -69 2 :) which refers to an instance of (:link 1 0 -77 2 :). See (:link 1 0 -62 2 :) for details. !!!!Note: Instead of using the throw keyword directly, it is preferable to call boost::(:link 1 0 -67 2 :). This is guaranteed to throw an exception that derives from boost::(:link 1 0 -53 2 :) and supports the (:link 1 0 -69 2 :) functionality. 0 -33 7 2 (:auto !!!:) (:include synopsis:) This macro takes an exception object, records the current function name, __FILE__ and __LINE__ in it, and forwards it to (:link 1 0 -67 2 :). To recover this information at the catch site, use (:link 1 0 -68 2 :); the information is also included in the message returned by (:link 1 0 -13 2 :). 0 -34 3 2 (:auto !!!:) (:include decl:) !!!!Effects: Frees all resources associated with a boost::(:link 1 0 -53 2 :) object. !!!!Throws: Nothing. 0 -35 1 2 (:auto !!:) (:pagelist tags="hpp" except_tags="noindex":) 0 -36 1 2 (:auto !!!:) !!!Synopsis (:include synopsis:) 0 -37 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -38 7 2 (:auto !!!:) (:include synopsis:) The (:link 1 0 -38 2 :) function is intended to be called from a user-defined std::exception::what() override. This allows diagnostic information to be returned as the what() string. !!!!Returns: A pointer to a zero-terminated buffer that contains a string similar to the std::string returned by the (:link 1 0 -13 2 :) function, or null to indicate a failure. !!!!Throws: Nothing. !!!!Note: The returned pointer becomes invalid if any (:link 1 0 -54 2 :) is modified or added to the exception object, or if another diagnostic information function is called. 0 -39 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -40 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -41 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting a relevant errno value in exceptions deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -42 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -43 19 2 (:auto !!!:) The code snippet below demonstrates how boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:) can be used to bundle the name of the function that failed, together with the reported errno so that they can be added to exception objects more conveniently together: [@#include <(:link 1 0 -37 2 :)> #include <(:link 1 0 -66 2 :)> #include <(:link 1 0 -59 2 :)> #include <(:link 1 0 -40 2 :)> #include <boost/shared_ptr.hpp> #include <stdio.h> #include <string> #include <errno.h> typedef boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)<boost::(:link 1 0 -5 2 :),boost::(:link 1 0 -41 2 :)> clib_failure; struct file_open_error: virtual boost::(:link 1 0 -53 2 :) { }; boost::shared_ptr<FILE> file_open( char const * name, char const * mode ) { if( FILE * f=fopen(name,mode) ) return boost::shared_ptr<FILE>(f,fclose); else throw file_open_error() << boost::(:link 1 0 -48 2 :)(name) << clib_failure("fopen",errno); }@] Note that the members of a boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:) are stored separately in exception objects; they can only be retrieved individually, using (:link 1 0 -68 2 :). 0 -44 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -45 7 2 (:auto !!!:) Deriving from boost::(:link 1 0 -53 2 :) effectively decouples the semantics of a failure from the information that is relevant to each individual instance of reporting a failure with a given semantic. In other words: with boost::(:link 1 0 -53 2 :), what data a given exception object transports depends primarily on the context in which failures are reported (not on its type.) Since exception types need no members, it becomes very natural to throw exceptions that derive from more than one type to indicate multiple appropriate semantics: [@struct exception_base: virtual std::exception, virtual boost::(:link 1 0 -53 2 :) { }; struct io_error: virtual exception_base { }; struct file_error: virtual io_error { }; struct read_error: virtual io_error { }; struct file_read_error: virtual file_error, virtual read_error { };@] Using this approach, exception types become a simple tagging system for categorizing errors and selecting failures in exception handlers. 0 -46 37 2 [@#include <(:link 1 0 -59 2 :)> #include <(:link 1 0 -15 2 :)> #include <(:link 1 0 -40 2 :)> #include <(:link 1 0 -7 2 :)> #include <(:link 1 0 -66 2 :)> #include <(:link 1 0 -76 2 :)> #include <(:link 1 0 -25 2 :)> #include <(:link 1 0 -39 2 :)> #include <boost/shared_ptr.hpp> #include <boost/weak_ptr.hpp> #include <stdio.h> #include <errno.h> #include <exception> struct error : virtual std::exception, virtual boost::(:link 1 0 -53 2 :) { }; struct file_error : virtual error { }; struct file_open_error: virtual file_error { }; struct file_read_error: virtual file_error { }; boost::shared_ptr<FILE> open_file( char const * file, char const * mode ) { if( FILE * f=fopen(file,mode) ) return boost::shared_ptr<FILE>(f,fclose); else (:link 1 0 -33 2 :)( file_open_error() << boost::(:link 1 0 -5 2 :)("fopen") << boost::(:link 1 0 -41 2 :)(errno) << boost::(:link 1 0 -48 2 :)(file) << boost::(:link 1 0 -70 2 :)(mode) ); } size_t read_file( boost::shared_ptr<FILE> const & f, void * buf, size_t size ) { size_t nr=fread(buf,1,size,f.get()); if( ferror(f.get()) ) (:link 1 0 -33 2 :)( file_read_error() << boost::(:link 1 0 -5 2 :)("fread") << boost::(:link 1 0 -41 2 :)(errno) << boost::(:link 1 0 -16 2 :)(f) ); return nr; }@] 0 -47 9 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: This function must not be called outside of a catch block. !!!!Returns: If the current exception object can be converted to boost::(:link 1 0 -53 2 :) or std::exception, this function returns the same string value returned by (:link 1 0 -13 2 :) for the current exception object. Otherwise, an unspecified non-empty string is returned. Typical use is to call 1 0 -47 2 from a top-level function to output diagnostic information about unhandled exceptions: [@int main() { try { run_program(); } catch( error & e ) { //handle error } catch( ...) { std::cerr << "Unhandled exception!" << std::endl << boost:: 1 0 -47 2 (); } }@] 0 -48 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting a relevant file name in exceptions deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -49 11 2 (:auto !!:) All exception types that derive from boost::(:link 1 0 -53 2 :) can be used as type-safe containers of arbitrary data objects, while complying with the no-throw requirements (15.5.1) of the ANSI C++ standard for exception types. When exceptions derive from boost::(:link 1 0 -53 2 :), arbitrary data can be added to exception objects: *At the point of the throw; *At a later time as exceptions bubble up the call stack. (:include 1 0 -75 2 :) (:include 1 0 -51 2 :) (:include 1 0 -43 2 :) 0 -50 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -51 19 2 (:auto !!!:) Sometimes the throw site does not have all the information that is needed at the catch site to make sense of what went wrong. Let's say we have an exception type file_read_error, which takes a file name in its constructor. Consider the following function: [@void file_read( FILE * f, void * buffer, size_t size ) { if( size!=fread(buffer,1,size,f) ) throw file_read_error(????); }@] How can the file_read function pass a file name to the exception type constructor? All it has is a FILE handle. Using boost::(:link 1 0 -53 2 :) allows us to free the file_read function from the burden of storing the file name in exceptions it throws: [@`#include <(:link 1 0 -11 2 :)> #include <boost/shared_ptr.hpp> #include <stdio.h> #include <errno.h> struct file_read_error: virtual boost::(:link 1 0 -53 2 :) { }; void file_read( FILE * f, void * buffer, size_t size ) { if( size!=fread(buffer,1,size,f) ) throw file_read_error() << boost::(:link 1 0 -41 2 :)(errno); }@] If file_read detects a failure, it throws an exception which contains the information that is available at the time, namely the errno. Other relevant information, such as the file name, can be added in a context higher up the call stack, where it is known naturally: [@#include <(:link 1 0 -11 2 :)> #include <boost/shared_ptr.hpp> #include <stdio.h> #include <string> boost::shared_ptr<FILE> file_open( char const * file_name, char const * mode ); void file_read( FILE * f, void * buffer, size_t size ); void parse_file( char const * file_name ) { boost::shared_ptr<FILE> f = file_open(file_name,"rb"); assert(f); try { char buf[1024]; file_read( f.get(), buf, sizeof(buf) ); } catch( boost::(:link 1 0 -53 2 :) & e ) { e << boost::(:link 1 0 -48 2 :)(file_name); throw; } }@] The above function is (almost) exception-neutral -- if an exception is emitted by any function call within the try block, parse_file does not need to do any real work, but it intercepts any boost::(:link 1 0 -53 2 :) object, stores the file name, and re-throws using a throw-expression with no operand (15.1.6). The rationale for catching any boost::(:link 1 0 -53 2 :) object is that the file name is relevant to any failure that occurs in parse_file, ''even if the failure is unrelated to file I/O''. 0 -52 5 2 (:auto !!!:) (:include synopsis:) !!!!Description: Returns a (const) reference to the copy of the value passed to (:link 1 0 -54 2 :)'s constructor stored in the (:link 1 0 -54 2 :) object. !!!!Throws: Nothing. 0 -53 13 2 (:auto !!!:) (:include synopsis:) Class boost::(:link 1 0 -53 2 :) is designed to be used as a universal base for user-defined exception types. An object of any type deriving from boost::(:link 1 0 -53 2 :) can store data of arbitrary types, using the (:link 1 0 -54 2 :) wrapper and (:link 1 0 -19 2 mod="/":). To retrieve data from a boost::(:link 1 0 -53 2 :) object, use the (:link 1 0 -68 2 :) function template. 0 -54 41 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: T must have accessible copy constructor and must not be a reference (there is no requirement that T's copy constructor does not throw.) !!!!Description: This class template is used to associate a Tag type with a value type T. Objects of type (:link 1 0 -54 2 :)<Tag,T> can be passed to (:link 1 0 -19 2 mod="/":) to be stored in objects of type boost::(:link 1 0 -53 2 :). !!!!Usage: The header <(:link 1 0 -18 2 :)> provides a declaration of the (:link 1 0 -54 2 :) template, which is sufficient for the purpose of typedefing an instance for specific Tag and T, for example: [@#include <(:link 1 0 -18 2 :)> struct tag_errno; typedef boost::(:link 1 0 -54 2 :)<tag_errno,int> errno_info;@] Or, the shorter equivalent: [@#include <(:link 1 0 -18 2 :)> typedef boost::(:link 1 0 -54 2 :)<struct tag_errno,int> errno_info;@] This errno_info typedef can be passed to (:link 1 0 -19 2 mod="/":) (#include <(:link 1 0 -25 2 :)> first) to store an int named tag_errno in exceptions of types that derive from boost::(:link 1 0 -53 2 :): [@throw file_read_error() (:link 1 0 -19 2 |<<:) errno_info(errno);@] It can also be passed to (:link 1 0 -68 2 :) (#include <(:link 1 0 -60 2 :)> first) to retrieve the tag_errno int from a boost::(:link 1 0 -53 2 :): [@catch( boost::(:link 1 0 -53 2 :) & x ) { if( int const * e=boost::(:link 1 0 -68 2 :)<errno_info>(x) ) .... }@] For convenience and uniformity, Boost Exception defines the following commonly used (:link 1 0 -54 2 :) typedefs, ready for use with (:link 1 0 -19 2 mod="/":): (:pagelist tags="error_info_instance":) 0 -55 3 2 (:auto !!!:) (:include synopsis:) !!!!Effects: Stores a copy of v in the 1 0 -54 2 object. (:include throws:) 0 -56 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -57 33 2 (:auto !!!:) Traditionally, when using exceptions to report failures, the throw site: *creates an exception object of the appropriate type, and *stuffs it with data relevant to the detected error. A higher context in the program contains a catch statement which: *selects failures based on exception types, and *inspects exception objects for data required to deal with the problem. The main issue with this "traditional" approach is that often, the data available at the point of the throw is insufficient for the catch site to handle the failure. Here is an example of a catch statement: [@catch( file_read_error & e ) { std::cerr << e.file_name(); }@] And here is a possible matching throw: [@void read_file( FILE * f ) { .... size_t nr=fread(buf,1,count,f); if( ferror(f) ) throw file_read_error(???); .... }@] Clearly, the problem is that the handler requires a file name but the read_file function does not have a file name to put in the exception object; all it has is a FILE pointer! In an attempt to deal with this problem, we could modify read_file to accept a file name: [@void read_file( FILE * f, char const * name ) { .... size_t nr=fread(buf,1,count,f); if( ferror(f) ) throw file_read_error(name); .... }@] This is not a real solution: it simply shifts the burden of supplying a file name to the immediate caller of the read_file function. ->''In general, the data required to handle a given library-emitted exception depends on the program that links to it. Many contexts between the throw and the catch may have relevant information which must be transported to the exception handler.'' !!!Exception wrapping The idea of exception wrapping is to catch an exception from a lower level function (such as the read_file function above), and throw a new exception object that contains the original exception (and also carries a file name.) This method seems to be particularly popular with C++ programmers with Java background. Exception wrapping leads to the following problems: *To wrap an exception object it must be copied, which may result in slicing. *Wrapping is practically impossible to use in generic contexts. The second point is actually special case of violating the exception neutrality principle. Most contexts in a program can not handle exceptions; such contexts should not interfere with the process of exception handling. !!!The boost::exception solution *Simply derive your exception types from boost::(:link 1 0 -53 2 :). *Confidently limit the throw site to provide only data that is available naturally. *Use exception-neutral contexts between the throw and the catch to augment exceptions with more relevant data as they bubble up. For example, in the throw statement below we only add the errno code, since this is the only failure-relevant information available in this context: [@struct exception_base: virtual std::exception, virtual boost::(:link 1 0 -53 2 :) { }; struct io_error: virtual exception_base { }; struct file_read_error: virtual io_error { }; typedef boost::(:link 1 0 -54 2 :)<struct tag_errno_code,int> errno_code; void read_file( FILE * f ) { .... size_t nr=fread(buf,1,count,f); if( ferror(f) ) throw file_read_error() (:link 1 0 -19 2 |<<:) errno_code(errno); .... }@] In a higher exception-neutral context, we add the file name to ''any'' exception that derives from boost::(:link 1 0 -53 2 :): [@typedef boost::(:link 1 0 -54 2 :)<struct tag_file_name,std::string> file_name; .... try { if( FILE * fp=fopen("foo.txt","rt") ) { shared_ptr<FILE> f(fp,fclose); .... read_file(fp); //throws types deriving from boost::(:link 1 0 -53 2 :) do_something(); .... } else throw file_open_error() (:link 1 0 -19 2 |<<:) errno_code(errno); } catch( boost::(:link 1 0 -53 2 :) & e ) { e (:link 1 0 -19 2 |<<:) file_name("foo.txt"); throw; }@] Finally here is how the handler retrieves data from exceptions that derive from boost::(:link 1 0 -53 2 :): [@catch( io_error & e ) { std::cerr << "I/O Error!\n"; if( std::string const * fn=(:link 1 0 -68 2 :)<file_name>(e) ) std::cerr << "File name: " << *fn << "\n"; if( int const * c=(:link 1 0 -68 2 :)<errno_code>(e) ) std::cerr << "OS says: " << strerror(*c) << "\n"; }@] In addition, boost::(:link 1 0 -13 2 :) can be used to compose an automatic (if not user-friendly) message that contains all of the (:link 1 0 -54 2 :) objects added to a boost::(:link 1 0 -53 2 :). This is useful for inclusion in logs and other diagnostic objects. 0 -58 27 2 (:auto !!:) Some exception hierarchies can not be modified to make boost::(:link 1 0 -53 2 :) a base type. In this case, the (:link 1 0 -63 2 :) function template can be used to make exception objects derive from boost::(:link 1 0 -53 2 :) anyway. Here is an example: [@#include <(:link 1 0 -11 2 :)> #include <stdexcept> typedef boost::(:link 1 0 -54 2 :)<struct tag_std_range_min,size_t> std_range_min; typedef boost::(:link 1 0 -54 2 :)<struct tag_std_range_max,size_t> std_range_max; typedef boost::(:link 1 0 -54 2 :)<struct tag_std_range_index,size_t> std_range_index; template <class T> class my_container { public: size_t size() const; T const & operator[]( size_t i ) const { if( i > size() ) throw boost::(:link 1 0 -63 2 :)(std::range_error("Index out of range")) << std_range_min(0) << std_range_max(size()) << std_range_index(i); //.... } }; @] The call to (:link 1 0 -63 2 :)<T> gets us an object of ''unspecified type'' which is guaranteed to derive from both boost::(:link 1 0 -53 2 :) and T. This makes it possible to use (:link 1 0 -19 2 mod="/":) to store additional information in the exception object. The exception can be intercepted as T &, so existing exception handling will not break. It can also be intercepted as boost::(:link 1 0 -53 2 :) &, so that (:link 1 0 -49 2 |more information can be added to the exception at a later time:). 0 -59 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -60 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -61 1 2 (:auto !!:) (:pagelist tags="macro":) 0 -62 39 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: The (:link 1 0 -62 2 :) function must not be called outside of a catch block. In addition, to safely copy an exception from one thread to another, if the exception object is copied by 1 0 -62 2 or 1 0 -12 2 , the two copies must not have shared state. Exceptions that have value-type semantics (as well as the boost:: 1 0 -53 2 type itself) satisfy this requirement. !!!!Returns: * An (:link 1 0 -69 2 :) that refers to the currently handled exception or a copy of the currently handled exception. * If the function needs to allocate memory and the attempt fails, it returns an (:link 1 0 -69 2 :) that refers to an instance of std::bad_alloc. !!!!Throws: Nothing. !!!!Notes: * It is unspecified whether the return values of two successive calls to (:link 1 0 -62 2 :) refer to the same exception object. * Correct implementation of (:link 1 0 -62 2 :) may require compiler support, unless (:link 1 0 -32 2 :) was used at the time the currently handled exception object was passed to throw. Whenever (:link 1 0 -62 2 :) fails to properly copy the current exception object, it returns an (:link 1 0 -69 2 :) to an object of type that is as close as possible to the original exception type, using (:link 1 0 -77 2 :) as a final fallback. All such types derive from boost::(:link 1 0 -53 2 :), and: ** if the original exception object derives from boost::(:link 1 0 -53 2 :), then the boost::(:link 1 0 -53 2 :) sub-object of the object referred to by the returned (:link 1 0 -69 2 :) is initialized by the boost::(:link 1 0 -53 2 :) copy constructor; ** if available, the exception contains the std::type_info of the original exception object, accessible through (:link 1 0 -68 2 :)<(:link 1 0 -29 2 :)>. 0 -63 5 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: T must be a class with an accessible no-throw copy constructor as per (15.5.1). !!!!Returns: * If T derives from boost::(:link 1 0 -53 2 :), the returned object is of type T and is a copy of x. * Otherwise, the returned object is of an unspecified type that derives publicly from both T and boost::(:link 1 0 -53 2 :). The T sub-object is initialized from x by the T copy constructor. !!!!Throws: Nothing. 0 -64 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -65 15 2 (:auto !!!:) Here is how cloning can be enabled in a throw-expression (15.1): [@#include <(:link 1 0 -25 2 :)> #include <(:link 1 0 -40 2 :)> #include <stdio.h> #include <errno.h> struct file_read_error: virtual boost::(:link 1 0 -53 2 :) { }; void file_read( FILE * f, void * buffer, size_t size ) { if( size!=fread(buffer,1,size,f) ) throw boost::(:link 1 0 -32 2 :)(file_read_error()) << boost::(:link 1 0 -41 2 :)(errno); }@] Of course, (:link 1 0 -32 2 :) may be used with any exception type; there is no requirement that it should derive from boost::(:link 1 0 -53 2 :). 0 -66 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -67 15 2 (:auto !!!:) (:include synopsis:) !!!!Effects: * If BOOST_NO_EXCEPTIONS is not defined, boost::(:link 1 0 -67 2 :)(e) throws an exception of unspecified type that derives publicly from E and from boost:: 1 0 -53 2 . * If BOOST_NO_EXCEPTIONS is defined, the function is left undefined, and the user is expected to supply an appropriate definition. Callers of (:link 1 0 -67 2 :) are allowed to assume that the function never returns; therefore, if the user-defined (:link 1 0 -67 2 :) returns, the behavior is undefined. !!!!Requirements: E must derive publicly from std::exception. E may or may not derive from boost:: 1 0 -53 2 . !!!!Notes: * The emitted exception can be intercepted as E &, std::exception &, or boost::exception &. * The emitted exception supports boost:: 1 0 -69 2 . * If BOOST_EXCEPTION_DISABLE is defined and BOOST_NO_EXCEPTIONS is not defined, boost:: 1 0 -67 2 (e) equivalent to throw e. 0 -68 13 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: * ErrorInfo must be an instance of the (:link 1 0 -54 2 :) template. * E must be polymorphic. !!!!Returns: * If dynamic_cast<boost::(:link 1 0 -53 2 :) const *>(&x) is 0, or if x does not store an object of type ErrorInfo, the returned value is null. * Otherwise, the returned pointer points to the stored value (use (:link 1 0 -19 2 mod="/":) to store values in exception objects.) When x is destroyed, any pointers returned by (:link 1 0 -68 2 :) become invalid. !!!!Throws: Nothing. !!!!Note: The interface of (:link 1 0 -68 2 :) may be affected by the build (:link 1 0 -22 2 :). 0 -69 23 2 (:auto !!!:) (:include synopsis:) The (:link 1 0 -69 2 :) type can be used to refer to a copy of an exception object. It is Default Constructible, Copy Constructible, Assignable and Equality Comparable; (:link 1 0 -69 2 :)'s operations do not throw. The referenced object remains valid at least as long as there is an (:link 1 0 -69 2 :) object that refers to it. Two instances of (:link 1 0 -69 2 :) are equivalent and compare equal if and only if they refer to the same exception. The default constructor of (:link 1 0 -69 2 :) produces the null value of the type. The null value is equivalent only to itself. !!!!Thread safety: The 1 0 -69 2 type is "as thread-safe as built-in types": * An 1 0 -69 2 instance can be "read" simultaneously by multiple threads * Different 1 0 -69 2 instances can be "written to" simultaneously by multiple threads, even when these instances refer to the same exception object All other simultaneous accesses result in undefined behavior. !!!!Nesting of exceptions: An (:link 1 0 -69 2 :) can be added as (:link 1 0 -54 2 :) to any boost::(:link 1 0 -53 2 :). This is a convenient way to nest exceptions. There is no limit on the depth of the nesting, however cyclic references result in undefined behavior. 0 -70 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting the string passed as a second argument to fopen in exceptions indicating fopen failures and deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -71 1 2 (:auto !!!:) (:include synopsis:) !!!!Requirements: This function must not be called outside of a catch block. !!!!Returns: A pointer of type E to the current exception object, or null if the current exception object can not be converted to E *. !!!!Throws: Nothing. 0 -72 11 2 !!!!Example: this is a possible output from the (:link 1 0 -13 2 :) function, as used in ''libs/exception/example/example_io.cpp:'' [@example_io.cpp(70): Throw in function class boost::shared_ptr<struct _iobuf> __cdecl my_fopen(const char *,const char *) Dynamic exception type: class boost::exception_detail::clone_impl<struct fopen_error> std::exception::what: example_io error [struct boost::(:link 1 0 -5 2 :)_ *] = fopen [struct boost::(:link 1 0 -41 2 :)_ *] = 2, "No such file or directory" [struct boost::(:link 1 0 -48 2 :)_ *] = tmp1.txt [struct boost::(:link 1 0 -70 2 :)_ *] = rb@] 0 -73 7 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard (:link 1 0 -54 2 :) instance for transporting a relevant text file line number, for example in parse error exceptions deriving from boost::(:link 1 0 -53 2 :). !!!Example: (:include 1 0 -46 2 :) 0 -74 1 2 (:auto !:) This is an alphabetical list of all Boost Exception documentation pages. (:pagelist fmt="index" except_tags="index noindex" mod="w":) 0 -75 17 2 (:auto !!!:) The following example demonstrates how errno can be stored in exception objects using Boost Exception: [@#include <(:link 1 0 -11 2 :)> #include <iostream> typedef boost::(:link 1 0 -54 2 :)<struct tag_my_info,int> my_info; //(1) struct my_error: virtual boost::(:link 1 0 -53 2 :), virtual std::exception { }; //(2) void f() { throw my_error() << my_info(42); //(3) }@] First, we instantiate the (:link 1 0 -54 2 :) template using a unique identifier -- tag_my_info, and the type of the info it identifies -- int. This provides compile-time type safety for the various values stored in exception objects. Second, we define class my_error, which derives from boost::(:link 1 0 -53 2 :). Finally, (3) illustrates how the typedef from (1) can be used with (:link 1 0 -19 2 |operator<<:) to store values in exception objects at the point of the throw. The stored my_info value can be recovered at a later time like this: [@// ...continued void g() { try { f(); } catch( my_error & x ) { if( int const * mi=boost::(:link 1 0 -68 2 :)<my_info>(x) ) std::cerr << "My info: " << *mi; } }@] The (:link 1 0 -68 2 :) function template is instantiated with the typedef from (1), and is passed an exception object of a polymorphic type. If the exception object contains the requested value, err will point to it; otherwise a null pointer is returned. 0 -76 1 2 (:auto !!:) !!!Synopsis (:include synopsis:) 0 -77 5 2 (:auto !!!:) (:include synopsis:) This type is used by the (:link 1 0 -69 2 :) support in Boost Exception. Please see (:link 1 0 -62 2 :). 0 -78 1 2 (:auto !!!:) !!!Synopsis (:include synopsis:) 0 -79 5 2 (:auto !!!:) (:include synopsis:) This type is designed to be used as a standard 1 0 -54 2 instance for transporting strings returned by std::type_info::name in exceptions deriving from boost:: 1 0 -53 2 objects. throws 84 reno_layer 75 0 -5 0 0 -6 0 0 -7 0 0 -8 0 0 -9 0 0 -10 0 0 -11 0 0 -12 0 0 -13 0 0 -14 0 0 -15 0 0 -16 0 0 -17 0 0 -18 0 0 -19 1 2 !!!!Throws: std::bad_alloc, or any exception emitted by the T copy constructor. 0 -20 0 0 -21 0 0 -22 0 0 -23 0 0 -24 0 0 -25 0 0 -26 0 0 -27 1 2 !!!!Throws: std::bad_alloc, or any exception emitted by T1..TN copy constructor. 0 -28 0 0 -29 0 0 -30 0 0 -31 0 0 -32 0 0 -33 0 0 -34 0 0 -35 0 0 -36 0 0 -37 0 0 -38 0 0 -39 0 0 -40 0 0 -41 0 0 -42 0 0 -43 0 0 -44 0 0 -45 0 0 -46 0 0 -47 0 0 -48 0 0 -49 0 0 -50 0 0 -51 0 0 -52 0 0 -53 0 0 -54 0 0 -55 1 2 !!!!Throws: Any exception emitted by v's copy constructor. 0 -56 0 0 -57 0 0 -58 0 0 -59 0 0 -60 0 0 -61 0 0 -62 0 0 -63 0 0 -64 0 0 -65 0 0 -66 0 0 -67 0 0 -68 0 0 -69 0 0 -70 0 0 -71 0 0 -72 0 0 -73 0 0 -74 0 0 -75 0 0 -76 0 0 -77 0 0 -78 0 0 -79 0 synopsis 85 reno_layer 75 0 -5 5 2 `#include < 1 0 -59 2 > (:include 1 0 -59 2 synopsis:) 0 -6 0 0 -7 3 2 [@#include <(:link 1 0 -18 2 :)> namespace boost { template <class> class weak_ptr; (:include api pre_indent="4":) }@] 0 -8 0 0 -9 3 2 `#include <(:link 1 0 -25 2 :)> [@(:include decl:)@] 0 -10 0 0 -11 1 2 [@(:include api:)@] 0 -12 3 2 `#include <(:link 1 0 -28 2 :)> [@namespace boost { (:include decl pre_indent="4":) }@] 0 -13 5 2 `#include <(:link 1 0 -64 2 :)>\\ `#include < 1 0 -28 2 >\\ [@namespace boost { (:include decl pre_indent="4":) }@] 0 -14 5 2 `#include < 1 0 -56 2 > (:include 1 0 -56 2 synopsis:) 0 -15 3 2 [@#include <(:link 1 0 -18 2 :)> namespace boost { (:include api pre_indent="4":) }@] 0 -16 5 2 `#include <(:link 1 0 -7 2 :)> (:include 1 0 -7 2 synopsis:) 0 -17 0 0 -18 1 2 [@namespace boost { (:include api pre_indent="4":) }@] 0 -19 3 2 `#include <(:link 1 0 -25 2 :)>\\ [@namespace boost { (:include decl pre_indent="4":) }@] 0 -20 0 0 -21 0 0 -22 0 0 -23 3 2 `#include <(:link 1 0 -28 2 :)> [@namespace boost { (:include decl pre_indent="4":) }@] 0 -24 0 0 -25 3 2 [@#include <(:link 1 0 -50 2 :)> namespace boost { (:include api pre_indent="4":) }@] 0 -26 0 0 -27 5 2 `#include <(:link 1 0 -37 2 :)> [@namespace boost { (:include 1 0 -27 2 decl pre_indent="4":) }@] 0 -28 3 2 [@#include <(:link 1 0 -50 2 :)> namespace boost { (:include api pre_indent="4":) }@] 0 -29 3 2 `#include < 1 0 -28 2 > [@namespace boost { (:include decl pre_indent="4":) }@] 0 -30 0 0 -31 0 0 -32 3 2 `#include < 1 0 -36 2 > [@namespace boost { (:include decl pre_indent="4":) }@] 0 -33 3 2 `#include <(:link 1 0 -39 2 :)> (:include decl:) 0 -34 0 0 -35 0 0 -36 3 2 [@#include < 1 0 -50 2 > namespace boost { (:include api pre_indent="4":) }@] 0 -37 3 2 [@#include < 1 0 -25 2 > #include <boost/tuple/tuple.hpp> namespace boost { (:include api pre_indent="4":) }@] 0 -38 3 2 `#include <(:link 1 0 -64 2 :)>\\ [@namespace boost { (:include decl pre_indent="4":) }@] 0 -39 1 2 (:include api:) 0 -40 3 2 [@#include < 1 0 -18 2 > #include <errno.h> namespace boost { (:include api pre_indent="4":) }@] 0 -41 5 2 `#include < 1 0 -40 2 > (:include 1 0 -40 2 synopsis:) 0 -42 1 2 [@namespace boost { (:include api pre_indent="4":) }@] 0 -43 0 0 -44 3 2 [@#include < 1 0 -18 2 > #include <string> namespace boost { (:include api pre_indent="4":) }@] 0 -45 0 0 -46 0 0 -47 3 2 `#include <(:link 1 0 -64 2 :)>\\ [@namespace boost { (:include decl pre_indent="4":) }@] 0 -48 5 2 `#include <(:link 1 0 -66 2 :)> (:include 1 0 -66 2 synopsis:) 0 -49 0 0 -50 1 2 [@namespace boost { (:include api pre_indent="4":) }@] 0 -51 0 0 -52 3 2 `#include <(:link 1 0 -25 2 :)> [@(:include decl:)@] 0 -53 3 2 `#include <(:link 1 0 -50 2 :)> [@namespace boost { (:include def pre_indent="4":) }@] 0 -54 3 2 `#include <(:link 1 0 -25 2 :)> [@namespace boost { (:include def pre_indent="4":) }@] 0 -55 3 2 `#include <(:link 1 0 -25 2 :)> [@(:include decl:)@] 0 -56 5 2 [@#include <(:link 1 0 -18 2 :)> namespace boost { (:include 1 0 -69 2 decl pre_indent="4":) (:include api pre_indent="4":) }@] 0 -57 0 0 -58 0 0 -59 3 2 [@#include <(:link 1 0 -18 2 :)> namespace boost { (:include api pre_indent="4":) }@] 0 -60 1 2 [@#include <boost/shared_ptr.hpp> namespace boost { (:include api pre_indent="4":) }@] 0 -61 0 0 -62 3 2 `#include <(:link 1 0 -28 2 :)> [@namespace boost { (:include decl pre_indent="4":) }@] 0 -63 3 2 `#include < 1 0 -78 2 > [@namespace boost { (:include decl pre_indent="4":) }@] 0 -64 3 2 [@#include <string> namespace boost { (:include 1 0 -53 2 decl pre_indent="4":) (:include api pre_indent="4":) }@] 0 -65 0 0 -66 3 2 [@#include <(:link 1 0 -18 2 :)> #include <string> namespace boost { (:include api pre_indent="4":) }@] 0 -67 3 2 `#include <(:link 1 0 -39 2 :)> [@namespace boost { (:include decl:) }@] 0 -68 1 2 [@namespace boost { (:include decl pre_indent="4":) }@] 0 -69 3 2 `#include <(:link 1 0 -28 2 :)> [@namespace boost { (:include decl pre_indent="4":) }@] 0 -70 5 2 `#include < 1 0 -76 2 > (:include 1 0 -76 2 synopsis:) 0 -71 3 2 `#include < 1 0 -42 2 > [@namespace boost { (:include decl pre_indent="4":) }@] 0 -72 0 0 -73 5 2 `#include <(:link 1 0 -15 2 :)> (:include 1 0 -15 2 synopsis:) 0 -74 0 0 -75 0 0 -76 3 2 [@#include < 1 0 -18 2 > #include <string> namespace boost { (:include api pre_indent="4":) }@] 0 -77 3 2 `#include <(:link 1 0 -28 2 :)> [@namespace boost { (:include decl pre_indent="4":) }@] 0 -78 3 2 [@#include < 1 0 -50 2 > namespace boost { (:include api pre_indent="4":) }@] 0 -79 5 2 `#include < 1 0 -44 2 > (:include 1 0 -44 2 synopsis:) 86 reno_context_map 75 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 75 0 1 -6 0 1 -30 0 1 -49 0 1 -74 0 1 -78 0 1 -36 0 1 -57 0 1 -24 0 1 -45 0 1 -17 0 1 -10 0 1 -35 0 1 -8 0 1 -61 0 1 -21 1 422CF2A57EA6763FBD2F319C4CDD8DD5ADF4493C699B50653015A362F71D4500 1282485161 2161 321 0 ../../../../boost/exception/info_tuple.hpp 0 0 -37 1 790A065B0168021FAD180E996254E3CDBC0360D22D3FCB83C143416663D85402 1376868984 262 323 0 ../../../../boost/exception/errinfo_nested_exception.hpp 0 0 -56 2 790A065B0168021FAD180E996254E3CDBC0360D22D3FCB83C143416663D85402 1376868984 262 323 83E18B98A15DEF9418E38218D221D10DC093B915D630B51974CCD23A6E1EDC44 849683856 98 158 0 ../../../../boost/exception/errinfo_nested_exception.hpp 0 0 -14 1 66EFC83C830F0B00D0C9399B475099072E2674B3C694F9152645A33E3D7AC303 561674611 417 323 0 ../../../../boost/exception/errinfo_file_name.hpp 0 0 -66 2 EEA69AA1E84CB2B7C903A3F4C236D0A233D03DBA4BA1D3B97D959918F3B30E09 2728032055 406 344 EE695B95A2499B66980754857E184776F1DE7224372A5F5153B6DF94E621A89B 1009590890 92 308 0 ../../../../boost/exception/errinfo_file_open_mode.hpp 0 0 -70 1 3B52D5850D9664639CCF1D22FBD52F2EB99087BED704C3FE07FE185B38C0DD09 676740550 15108 321 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -28 2 2F10A76F9BA78353597A5E6F1373E8188DE7AEFDCE29BFD0105527B64B37D00E 1041541496 4693 1606 20B46D7510ED9F1F40CF3A80C97AE430628745D26173DE91E3D6CB6CEABDAA58 2572596214 659 4028 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 -38 3 2F10A76F9BA78353597A5E6F1373E8188DE7AEFDCE29BFD0105527B64B37D00E 1041541496 4693 1606 4FDA7B607488BB202B2AB72C17983031070085FB6B616F2B77320088BE08EB62 98930276 3714 26 28B2A7701322B20C8CF5D6074F9019FBEA2FB02F1A13E83632AA76C431798777 1206384617 3087 628 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 -13 1 21A43755562CB78B3FFCC49F66B457C1FCD659EE98F25BBFA8DDE453EB89DF0E 2576704708 337 323 0 ../../../../boost/exception/errinfo_api_function.hpp 0 0 -59 1 FC684D0DD5A9732B4130F2AB3DB6E0491D0F523E14B7FB738B2019EA2C7F8717 2229778754 631 319 0 ../../example/cloning_2.cpp 0 0 -31 2 126A895281064E2195458B8A47CD73DB7E3BE3608F250925E07AF4230CBDDE1D 4231421785 307 344 16179B125E2BC6D993FBE4BA5E9A96DBAE43CA1443C7D281B659D020B6725983 1126376090 92 209 0 ../../../../boost/exception/errinfo_type_info_name.hpp 0 0 -79 1 4D7009F0868C1DF4898EC6ECF9AD2CFEA98E8653B01B066106761807405D4C22 1416707852 3107 543 0 ../../../../boost/exception/get_error_info.hpp 0 0 -60 1 27ED18F9B6131B084FEF0C9F932B7027AF449E378B5FD7973CD6642263FCAF27 2867102400 404 307 0 ../../example/cloning_1.cpp 0 0 -65 1 F971041F60D19AFB8AA50440BC2A911633E5826FDED7B3E1CFC90D241D880C32 931174095 3062 95 0 ../../../../boost/throw_exception.hpp 0 0 -39 1 979343A73CAA7601AF159E6240A03038F47940F71F6DE85D6BA648B179921C35 2321681356 939 321 0 ../../../../boost/exception/errinfo_errno.hpp 0 0 -40 1 BF7B46FEFA4E2DED7D652BFD40E94DD0B225ADA8D35E28FF4216F72812589835 422843600 756 543 0 ../../../../boost/exception/all.hpp 0 0 -11 2 6FB85B536F965F137409D5B5D34786DCBF0B9957A7C251D271B717A1156B823D 1090406464 362 543 D16DAEA8B1792A019AF7FCA362FDC6EFD381AF4C43C076A01C029ECE51F994A6 3172941848 330 26 0 ../../../../boost/exception/current_exception_cast.hpp 0 0 -71 1 DB156E6A8ACB9FB90C8FB110FC25A5FEB14A619F82EEC47FF913373592E5CC3E 240075319 6209 412 0 ../../example/example_io.cpp 0 0 -72 2 FD7792C2929DD7B6BD613636FD0C574D002286E33811BA109B57B9C4D790D340 1830643656 1244 1793 BAE73EEDFF4059A7561888B4BA054DFA033F0967727630270F2C0D4EB918B88D 3168166030 1222 21 0 ../../../../boost/throw_exception.hpp 0 0 -67 2 15CF5BD93D20D62D659C11A69330B06E408398EA488BEF1FD45437AADCDB424E 1232553666 214 345 6262783847165581298EC9500031E6B7A97B2751A9CEF67C4794121A78142C58 3676119191 90 118 0 ../../../../boost/exception/errinfo_file_handle.hpp 0 0 -16 1 D32E0E4334CE0236B6EDB0EAC484B2DD595860E9FD53701EB5646D62C6A45D4E 1054670543 866 306 0 ../../example/error_info_2.cpp 0 0 -51 2 8A8FAA48FF123031D5E51D50BC96D0AAC468112838058976B85AC6EED4A25C57 4201574956 763 833 AEA5C07CF015DDE792E061003F669239E7AADBD24BE554EB26706AD9B28B8C89 2503775994 472 285 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 -47 1 66E0BD9724AB83012F5B35D887E3313960DC0E69B94E0C03CA1F3C85A0D84A5C 2883671483 311 306 0 ../../example/logging.cpp 0 0 -26 1 4EDD3DF2332B6D9D22AC9AD90B850ACC715A24DD466E675014CBED25C63C255F 4175717823 328 323 0 ../../../../boost/exception/errinfo_type_info_name.hpp 0 0 -44 2 21027A2B73C9AA6FF083752A952D63BBA9B5FD68A3C8915965A7184EA62A5D61 1523356166 537 623 24256E1CE56594FB38D0630858B8947191827CFC57771E8727A6A56F76207454 665917505 66 26 0 ../../../../boost/exception/errinfo_errno.hpp 0 0 -41 3 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 2482DDAF6A7E31CF75E93B993C86D9814A0B8899B68E555B23D411BD195FE270 1574307697 8349 4068 7E162EB263369C2C485D5F69CA1A4FADD3EEBC6EB78CE7A767A8615885178079 1179386730 5404 2935 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -62 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 EEDBDE62A278D2AF428D9D1ED2ABCFF06163BACD91E12DD033565C7043354B89 246173488 248 1396 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -29 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 1D5E771272B020A105B69E186517499873571F62AFF9D48F130C952CFAA12FA3 2841506107 891 173 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -69 3 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 97DB2EDAA38019314BA1A582664F8950F5208310F14BAB94E1880AE2C5F00CD4 3076716310 959 2974 1760DA943E0DCAE6DDB000F3C08D6E6F5F8AEDBBEAC7CAA84A2ED60BFA4B0E1A 702729709 815 145 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -77 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 0066D4E6E6B189906E6DE04F08509F3737511701A1B1355B37511EC18E8371F4 2078296250 305 1066 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -12 2 ADCD0B47BEBAA82DE5FDCACB0E9E8FF900527566EF9865ECD8C08B62067B4C66 1181168733 14302 1027 10E31FFA267B250065A2630D0B7107862920D940AEA0A5499D5341A902AE01FF 1524325002 368 13033 0 ../../../../boost/exception/detail/exception_ptr.hpp 0 0 -23 2 AEDDD2FA4F47CEBD99444F1054D85AB8132748CF38D6634503D62E9C8AD5FE68 1378637100 292 368 892C0239798B84BA2E80DAA70BBEB7BE0B6086A1D0829D0E1937EC1D19E3FF20 3349881047 89 197 0 ../../../../boost/exception/errinfo_api_function.hpp 0 0 -5 1 756A81C65A938BEEAD9B576707145748A3DB3BF767CC77ADD5AACD549373856A 904132245 744 363 0 ../../example/info_tuple.cpp 0 0 -43 1 E0BE7EFCD5550582AB95C9EEDA6E68CA0F89B19838DA61876D42161E1EA4AE71 2587249979 233 323 0 ../../../../boost/exception/errinfo_at_line.hpp 0 0 -15 2 E0BE7EFCD5550582AB95C9EEDA6E68CA0F89B19838DA61876D42161E1EA4AE71 2587249979 233 323 92AB508A6B1C2A62CB2ACED423BD04BB5A471674B5A51BFC1E6FB1F5C92AF9AA 2372475309 70 157 0 ../../../../boost/exception/errinfo_at_line.hpp 0 0 -73 1 FFF4359EFC66EE6AA729B641F38B4020A55E83A1C099BCA59B1CA9A9875E7F79 366628170 236 323 0 ../../../../boost/exception/errinfo_file_handle.hpp 0 0 -7 1 56C5A51DE37A6E893DA3B25D69DB65E4593C7803C6E34112E1F95C93D6037A82 275305396 5586 321 0 ../../../../boost/exception/info.hpp 0 0 -25 2 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 -54 3 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 38B566F2C6678B8724D18086A6F76E077DC2ADC1BB69A4B83BF0A2C3B7D31B50 2218658069 31 143 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 -9 3 9516640DF38FC07A649AA4CAF21D4C4A6D6C2DF2B00E608F8D1C653C8D85E58B 406646287 956 564 8F508F9E7187AEA0E35A268B6F7B8E8A6C6588CCA01A2F3C5BBF1010699D8270 1555404133 578 372 98B33BE76679E3A4831241335CD5DFF6F634429F36BABF96C1D4DC2296C5ECC5 1584672077 208 259 0 ../../../../boost/exception/detail/error_info_impl.hpp 0 0 -52 1 8A5444CF9C854740F83F17EA2075478A983F7C0243DCE4E42551ECBF908C1392 4193409281 322 992 0 ../../../../boost/throw_exception.hpp 0 0 -22 1 F2E44174DE588C19C0172D82AD61322E6B6578ADBE2A631C6C8059CB84396D97 670214046 684 321 0 ../../../../boost/exception/current_exception_cast.hpp 0 0 -42 1 197F3960CFF5CBDEF7BDA8D0DE60948A5328F229C6710FEDE656530A3116B29B 742102996 475 1316 0 ../../../../boost/throw_exception.hpp 0 0 -33 2 D58AD357499A5A09FB5D12397CFFC2FFD412AC8A307ABB59C9BC53ACCA3B959D 2209414553 2926 724 49F40FF20D66B205C908A8F10BC61DE1BC571E4917A5BD0B4115E3F7FE3923FA 638776689 2894 26 0 ../../../../boost/exception/get_error_info.hpp 0 0 -68 1 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 0 ../../../../boost/exception/exception.hpp 0 0 -50 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 96DA9A7E983733685FB1D74C8ABF58EA409CCA42F8522A9775E15BC0C93DB87B 3668840260 2638 4436 0 ../../../../boost/exception/exception.hpp 0 0 -53 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 17E691632123EB67BA67D590B49EB8094F462F5A10A66A1C5438E1867EF1478E 765399792 77 7076 0 ../../../../boost/exception/exception.hpp 0 0 -34 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 DF9EA87B0140AACF4422F1B76F6A6A409C15F32858BBBA85A35981A824C56BA9 1137981799 192 11964 0 ../../../../boost/exception/exception.hpp 0 0 -32 2 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 F3FB15CD82336271C6E875BC620385322777D16F0B7C233300783CE35710CCBF 3292878997 282 9470 0 ../../../../boost/exception/exception.hpp 0 0 -63 3 3EC508EAC996E7C8D4B1DDF49BF0B32096F8DEFD1BD1CD7FABBF0E0938255CA4 1239321455 12162 543 97095C7B5621CC7BAB278BE10B315FB44588DB1CF078F269E35499C0FD934AF0 2572216802 2505 4436 A94129EFD6ABBDDCD4CFDB671821F7DA103B2EA4455CF39E783D333C236D1C41 1035445969 595 402 0 ../../../../boost/exception/exception.hpp 0 0 -20 1 DE766B811244919E8E1EA54FC747A8487BCE57F1AB592932640FC90428B617A5 414875037 427 323 0 ../../../../boost/exception/errinfo_file_open_mode.hpp 0 0 -76 1 977045132A532A0071B0B53F737D85367CE9A331402F96790E45B3B6F2FC88A6 1875939463 529 382 0 ../../example/error_info_1.cpp 0 0 -75 1 91CF203512705C8B2CDCBCD1439821CBF93CFC1A4C2EA2CA91F38DAA3F7720B2 1769665510 1558 352 0 ../../example/errinfos.cpp 0 0 -46 1 0CA48A4674CA9C409FF164D9A1B261FB48B0916C0EA387DF2F00DC4637E769BD 348807582 6078 321 0 ../../../../boost/exception/diagnostic_information.hpp 0 0 -64 2 1B4417301AE3C0338C22E6D497391F51ABD459E521E7DFCE59A6EEC1372D33C2 202224383 1766 616 E0A17503B42EE12F31548A7D20F89916D734CE88B30A1BF6F9FC2D1F83A8B6F4 3410340567 1734 26 0 ../../../../boost/exception/info_tuple.hpp 0 0 -27 2 307034E20863A00923777A60D9495B4076B7F917D5B97203025299060F0833E0 3948311309 396 344 F8ED2052577830AC0C515EC5932BB14445DD5DA714782281FCDB1776961FECB1 3880328768 82 308 0 ../../../../boost/exception/errinfo_file_name.hpp 0 0 -48 1 C95CEF2E9D0BAA1E950509471062916DB849A46A19F7692BA478030E79B338EB 1917376632 706 408 0 ../../example/enable_error_info.cpp 0 0 -58 2 C6DDF7D02A058403B7BD295CF1561F167D92B7DA1DAC4EBE9F801955264180EB 1656366188 5040 767 6E325144EF4F41FA3A225EB30729101382C4E99B3D6160E307311E4B4E641010 1097215175 161 422 0 ../../../../boost/exception/info.hpp 0 0 -55 3 C6DDF7D02A058403B7BD295CF1561F167D92B7DA1DAC4EBE9F801955264180EB 1656366188 5040 767 507B2DA4184DD6A38FC6099F6454CDC96604C0C7B2C06A2955C78452F66526F8 457758605 3872 889 38AA79D330846BE1CF17285796F34A9DBB5A7E995963A55F9B46EB1DA6314610 542483318 573 3084 0 ../../../../boost/exception/info.hpp 0 0 -19 2 9A4ECF9A49A73AED83C1565CB8C67AE1519E8AFE6818F968B4C4733CB9E86CEF 1615599655 68 321 34F0583BC8DE767CE2D79721E1F956895E43E5397473B1050F59BE7E26C773DB 805836816 66 1 0 ../../../../boost/exception/error_info.hpp 0 0 -18 87 tag_index 56 1 0 -5 error_info_instance noalso type 0 -6 noindex 0 -9 type 0 -12 exception_ptr free function 0 -13 diagnostic_information free function 0 -14 error_info_instance noalso type 0 -16 error_info_instance noalso type 0 -18 0 -19 error_info free function 0 -20 function 0 -23 exception_ptr free function 0 -24 tutorial 0 -25 0 -26 diagnostic_information tutorial 0 -27 error_info free function 0 -28 0 -29 type 0 -30 tutorial 0 -31 noindex tutorial 0 -32 exception_ptr free function 0 -33 macro 0 -34 function 0 -36 exception_ptr 0 -37 0 -38 free function 0 -39 0 -41 error_info_instance noalso type 0 -42 0 -43 noalso noindex tutorial 0 -47 function 0 -48 error_info_instance noalso type 0 -49 tutorial 0 -50 0 -51 noalso noindex tutorial 0 -52 function member 0 -53 type 0 -54 type 0 -55 function member 0 -58 tutorial 0 -60 error_info 0 -62 exception_ptr free function 0 -63 error_info free function 0 -64 0 -65 noindex tutorial 0 -67 free function 0 -68 error_info free function 0 -69 type 0 -70 error_info_instance noalso type 0 -71 function 0 -73 error_info_instance noalso type 0 -74 0 -75 noalso noindex tutorial 0 -77 exception_ptr type 0 -78 error_info 0 -79 error_info_instance noalso type