Project: h3

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 22
Lines of code 4506
Lines covered 4265
Code coverage 94.65%
Code coverage report Report link
Static reachability 96.05%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
fuzzerCellArea 18.55% (avg: 18.59%, max: 18.66%) 2025-03-27
fuzzerCellProperties 13.37% (avg: 13.14%, max: 13.37%) 2025-03-27
fuzzerCellsToLinkedMultiPolygon 29.81% (avg: 29.88%, max: 29.99%) 2025-03-27
fuzzerCellToChildPos 5.0% (avg: 5.01%, max: 5.03%) 2025-03-27
fuzzerCellToLatLng 17.12% (avg: 17.16%, max: 17.22%) 2025-03-27
fuzzerCompact 9.08% (avg: 9.1%, max: 9.14%) 2025-03-27
fuzzerDirectedEdge 32.69% (avg: 32.51%, max: 32.69%) 2025-03-27
fuzzerDistances 0.66% (avg: 0.66%, max: 0.66%) 2025-03-27
fuzzerEdgeLength 20.42% (avg: 20.47%, max: 20.55%) 2025-03-27
fuzzerGridDisk 12.68% (avg: 12.71%, max: 12.75%) 2025-03-27
fuzzerHierarchy 4.86% (avg: 4.87%, max: 4.89%) 2025-03-27
fuzzerIndexIO 0.8% (avg: 0.8%, max: 0.81%) 2025-03-27
fuzzerInternalAlgos 27.63% (avg: 27.7%, max: 27.8%) 2025-03-27
fuzzerInternalCoordIjk 31.64% (avg: 31.64%, max: 31.64%) 2025-03-27
fuzzerLatLngToCell 11.32% (avg: 11.34%, max: 11.38%) 2025-03-27
fuzzerLocalIj 18.76% (avg: 18.8%, max: 18.86%) 2025-03-27
fuzzerPolygonToCells 37.84% (avg: 37.93%, max: 38.06%) 2025-03-27
fuzzerPolygonToCellsExperimental 41.6% (avg: 41.69%, max: 41.82%) 2025-03-27
fuzzerPolygonToCellsExperimentalNoHoles 40.58% (avg: 40.67%, max: 40.8%) 2025-03-27
fuzzerPolygonToCellsNoHoles 36.66% (avg: 36.75%, max: 36.88%) 2025-03-27
fuzzerResolutions 3.27% (avg: 3.28%, max: 3.29%) 2025-03-27
fuzzerVertexes 25.01% (avg: 24.81%, max: 25.01%) 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
run /src/h3/src/apps/fuzzers/fuzzerPolygonToCells.c 482 0.0%
iterStepRes /src/h3/src/h3lib/lib/iterators.c 46 0.0%
iterInitRes /src/h3/src/h3lib/lib/iterators.c 31 0.0%
iterInitBaseCellNum /src/h3/src/h3lib/lib/iterators.c 29 0.0%
isClockwiseGeoLoop /src/h3/src/h3lib/include/polygonAlgos.h 11 0.0%
isClockwiseNormalizedGeoLoop /src/h3/src/h3lib/include/polygonAlgos.h 9 0.0%
bboxCenter /src/h3/src/h3lib/lib/bbox.c 8 0.0%
setGeoDegs /src/h3/src/h3lib/lib/latLng.c 6 0.0%
bboxEquals /src/h3/src/h3lib/lib/bbox.c 4 0.0%
describeH3Error /src/h3/src/h3lib/lib/h3Index.c 3 0.0%