uber / h3 Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 470 units with 8,474 lines of code in units (32.3% of code).

0 very complex units (0 lines of code)
7 complex units (880 lines of code)
28 medium complex units (1,515 lines of code)
64 simple units (2,061 lines of code)
371 very simple units (4,018 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
void iterStepPolygonCompact() in src/h3lib/lib/polyfill.c	131	39	1
H3Error localIjkToCell() in src/h3lib/lib/localij.c	135	35	3
H3Error polygonStringToGeoPolygon() in src/apps/filters/h3.c	123	32	3
static void generate() in src/apps/miscapps/generateBaseCellNeighbors.c	122	32	1
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	163	32	1
H3Error cellToLocalIjk() in src/h3lib/lib/localij.c	107	31	3
H3Error h3NeighborRotations() in src/h3lib/lib/algos.c	99	26	4
H3Error H3_EXPORT() in src/h3lib/lib/algos.c	104	20	1
H3Error H3_EXPORT() in src/h3lib/lib/vertex.c	56	19	1
int _parseArgsList() in src/apps/applib/lib/args.c	57	17	7
int LLVMFuzzerTestOneInput() in src/apps/fuzzers/fuzzerGridDisk.c	66	17	2
H3Error H3_EXPORT() in src/h3lib/lib/directedEdge.c	62	17	1
void doCell() in src/apps/testapps/testH3NeighborRotations.c	58	15	3
H3Index _faceIjkToH3() in src/h3lib/lib/h3Index.c	54	15	2
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	50	15	1
void _hex2dToCoordIJK() in src/h3lib/lib/coordijk.c	75	15	2
H3Error H3_EXPORT() in src/h3lib/lib/algos.c	54	14	1
H3Error H3_EXPORT() in src/h3lib/lib/algos.c	47	14	1
bool cellBoundaryCrossesGeoLoop() in src/h3lib/lib/polygon.c	47	14	4
static void auditBaseCellNeighbors() in src/apps/miscapps/generateBaseCellNeighbors.c	35	13	2
static H3Error vertexRotations() in src/h3lib/lib/vertex.c	43	13	2
void _faceIjkToCellBoundary() in src/h3lib/lib/faceijk.c	68	13	5
function doSplitUserInput() in website/src/components/explorer/index.tsx	60	13	2
H3Error _h3ToFaceIjk() in src/h3lib/lib/h3Index.c	31	12	2
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	48	12	1
Overage _adjustOverageClassII() in src/h3lib/lib/faceijk.c	42	12	4
void GENERIC_LOOP_ALGO() in src/h3lib/include/polygonAlgos.h	36	12	1
export default function HomeExporer() in website/src/components/explorer/index.tsx	124	12	1
int main() in src/apps/testapps/testH3NeighborRotations.c	35	11	2
int main() in src/apps/filters/cellToBoundary.c	37	11	2
int main() in src/apps/filters/cellToLatLng.c	37	11	2
int main() in src/apps/miscapps/cellToLatLngHier.c	63	11	2
int main() in src/apps/miscapps/cellToBoundaryHier.c	62	11	2
H3Error _upAp7Checked() in src/h3lib/lib/coordijk.c	32	11	1
H3Error _upAp7rChecked() in src/h3lib/lib/coordijk.c	32	11	1
int readBoundary() in src/apps/testapps/testCellToBoundary.c	42	10	2
void localIjToH3_traverse_assertions() in src/apps/testapps/testCellToLocalIjExhaustive.c	48	10	1
int main() in src/apps/filters/localIjToCell.c	58	10	2
int main() in src/apps/miscapps/h3ToHier.c	54	10	2
void _faceIjkPentToCellBoundary() in src/h3lib/lib/faceijk.c	70	10	5
H3Error _gridDiskDistancesInternal() in src/h3lib/lib/algos.c	28	10	6
H3Error _getEdgeHexagons() in src/h3lib/lib/algos.c	45	10	6
static inline H3Error validateCellSet() in src/h3lib/lib/cellsToMultiPoly.c	34	10	2
bool GENERIC_LOOP_ALGO() in src/h3lib/include/polygonAlgos.h	39	10	1
function geoJsonToCells() in website/src/components/explorer/index.tsx	29	10	2
void printHelp() in src/apps/applib/lib/args.c	30	9	7
int main() in src/apps/filters/latLngToCell.c	52	9	2
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	46	9	1
H3Error _gridRingInternal() in src/h3lib/lib/algos.c	36	9	3
H3Error cellToBBox() in src/h3lib/lib/polyfill.c	33	9	3