Project: boost-json

Language c++
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 4
Lines of code 20063
Lines covered 8957
Code coverage 44.64%
Code coverage report Report link
Static reachability 76.43%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
fuzz_basic_parser 11.33% (avg: 11.31%, max: 11.33%) 2025-03-27
fuzz_direct_parse 15.92% (avg: 15.92%, max: 15.92%) 2025-03-27
fuzz_parse 20.61% (avg: 20.61%, max: 20.61%) 2025-03-27
fuzz_parser 41.85% (avg: 41.85%, max: 41.85%) 2025-03-27

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
charconst*boost::json::basic_parser<boost::json::detail::into_handler<Object>>::parse_value<false,false>(charconst*,std::__1::integral_constant<bool,false>,std::__1::integral_constant<bool,false>,bool,bool,bool) /work/stage/include/boost/json/basic_parser_impl.hpp 9038 5.194%
charconst*boost::json::basic_parser<boost::json::detail::into_handler<Object>>::parse_value<false,true>(charconst*,std::__1::integral_constant<bool,false>,std::__1::integral_constant<bool,true>,bool,bool,bool) /work/stage/include/boost/json/basic_parser_impl.hpp 8979 5.194%
_ZN5boost4mp116detail19mp_with_index_impl_ILm3EE4callILm0ENS_4json12basic_parserINS5_6detail12into_handlerI6ObjectEEE19parse_number_helperILb0ELc0EEEEEDTclclsr3stdE7declvalIT0_EEclL_ZNSt3__17declvalB8ne180100INSF_17integral_constantImLm0EEEEEDTclsr3stdE9__declvalIT_ELi0EEEvEEEEmOSE_ /work/stage/include/boost/mp11/detail/mp_with_index.hpp 4564 0.0%
_ZN5boost4mp1113mp_with_indexILm3ENS_4json12basic_parserINS2_6detail12into_handlerI6ObjectEEE19parse_number_helperILb0ELc0EEEEEDTclclsr3stdE7declvalIT0_EEclL_ZNSt3__17declvalB8ne180100INSC_17integral_constantImLm0EEEEEDTclsr3stdE9__declvalIT_ELi0EEEvEEEEmOSB_ /work/stage/include/boost/mp11/detail/mp_with_index.hpp 4548 0.0%
boost::json::operator>>(std::__1::basic_istream<char,std::__1::char_traits<char>>&,boost::json::value&) /src/boost/./boost/json/impl/value.ipp 3729 0.0%
boost::json::stream_parser::write(charconst*,unsignedlong) /src/boost/./boost/json/impl/stream_parser.ipp 3366 0.0%
boost::json::parser::write(charconst*,unsignedlong) /src/boost/./boost/json/impl/parser.ipp 3366 0.0%
boost::json::stream_parser::finish() /src/boost/./boost/json/impl/stream_parser.ipp 3359 0.0%
boost::json::stream_parser::write_some(charconst*,unsignedlong) /src/boost/./boost/json/impl/stream_parser.ipp 3359 0.0%
boost::json::parser::write_some(charconst*,unsignedlong) /src/boost/./boost/json/impl/parser.ipp 3359 0.0%