Project: simdjson

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 13
Lines of code 11115
Lines covered 5038
Code coverage 45.33%
Code coverage report Report link
Static reachability 21.24%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
fuzz_atpointer 19.77% (avg: 19.78%, max: 19.78%) 2025-03-27
fuzz_dump 19.1% (avg: 19.11%, max: 19.11%) 2025-03-27
fuzz_dump_raw_tape 18.27% (avg: 18.27%, max: 18.27%) 2025-03-27
fuzz_element 23.94% (avg: 23.95%, max: 23.95%) 2025-03-27
fuzz_implementations 27.57% (avg: 27.58%, max: 27.58%) 2025-03-27
fuzz_minify 23.79% (avg: 23.8%, max: 23.8%) 2025-03-27
fuzz_minifyimpl 5.15% (avg: 5.16%, max: 5.16%) 2025-03-27
fuzz_ndjson 20.17% (avg: 20.17%, max: 20.17%) 2025-03-27
fuzz_ondemand 20.06% (avg: 20.07%, max: 20.09%) 2025-03-27
fuzz_padded 1.84% (avg: 1.84%, max: 1.84%) 2025-03-27
fuzz_parser 17.07% (avg: 17.07%, max: 17.07%) 2025-03-27
fuzz_print_json 23.83% (avg: 23.83%, max: 23.83%) 2025-03-27
fuzz_utf8 4.52% (avg: 4.53%, max: 4.53%) 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
simdjson::internal::from_chars(charconst*,charconst*) /src/simdjson/src/from_chars.cpp 122 0.0%
simdjson::internal::adjusted_mantissasimdjson::internal::parse_long_mantissa<simdjson::internal::binary_format<double>>(charconst*,charconst*) /src/simdjson/src/from_chars.cpp 114 0.0%
simdjson::internal::detect_best_supported_implementation_on_first_use::name()const /src/simdjson/src/implementation.cpp 95 0.0%
simdjson::internal::detect_best_supported_implementation_on_first_use::description()const /src/simdjson/src/implementation.cpp 95 0.0%
VerboseTestOneInput /src/simdjson/fuzz/fuzz_utf8.cpp 88 0.0%
simdjson::builtin_implementation() /src/simdjson/src/implementation.cpp 47 0.0%
simdjson::internal::available_implementation_list::operator[](std::__1::basic_string_view<char,std::__1::char_traits<char>>const&)const /src/simdjson/include/simdjson/implementation.h 37 0.0%
voidshowOutputAndAbort<Impl*>(Impl*,Impl*) /src/simdjson/fuzz/fuzz_implementations.cpp 37 0.0%
simdjson::internal::parse_decimal(charconst*&,charconst*) /src/simdjson/src/from_chars.cpp 36 0.0%
simdjson::internal::available_implementation_list::size()const /src/simdjson/src/implementation.cpp 26 0.0%