Uber / h3Conditional 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 381 units with 7,041 lines of code in units (35.6% of code).

0 very complex units (0 lines of code)
6 complex units (749 lines of code)
28 medium complex units (1,398 lines of code)
51 simple units (1,643 lines of code)
296 very simple units (3,251 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
H3Error localIjkToCell() in src/h3lib/lib/localij.c	135	35	3
void iterStepPolygonCompact() in src/h3lib/lib/polyfill.c	126	34	1
static void generate() in src/apps/miscapps/generateBaseCellNeighbors.c	122	32	1
H3Error cellToLocalIjk() in src/h3lib/lib/localij.c	107	31	3
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	160	31	1
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
H3Error H3_EXPORT() in src/h3lib/lib/directedEdge.c	62	17	1
int LLVMFuzzerTestOneInput() in src/apps/fuzzers/fuzzerGridDisk.c	60	16	2
void doCell() in src/apps/testapps/testH3NeighborRotations.c	58	15	3
void _hex2dToCoordIJK() in src/h3lib/lib/coordijk.c	75	15	2
void _geoAzDistanceRads() in src/h3lib/lib/latLng.c	50	15	4
H3Index _faceIjkToH3() in src/h3lib/lib/h3Index.c	54	15	2
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	50	15	1
H3Error H3_EXPORT() in src/h3lib/lib/algos.c	54	14	1
bool cellBoundaryCrossesGeoLoop() in src/h3lib/lib/polygon.c	47	14	4
int H3_EXPORT() in src/h3lib/lib/h3Index.c	29	14	1
static void auditBaseCellNeighbors() in src/apps/miscapps/generateBaseCellNeighbors.c	35	13	2
H3Error H3_EXPORT() in src/h3lib/lib/algos.c	45	13	1
static H3Error vertexRotations() in src/h3lib/lib/vertex.c	42	13	2
void _faceIjkToCellBoundary() in src/h3lib/lib/faceijk.c	65	13	5
void GENERIC_LOOP_ALGO() in src/h3lib/include/polygonAlgos.h	36	12	1
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
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/testapps/testH3NeighborRotations.c	35	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 main() in src/apps/filters/localIjToCell.c	58	10	2
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/miscapps/h3ToHier.c	54	10	2
bool GENERIC_LOOP_ALGO() in src/h3lib/include/polygonAlgos.h	39	10	1
H3Error _gridDiskDistancesInternal() in src/h3lib/lib/algos.c	28	10	6
H3Error _getEdgeHexagons() in src/h3lib/lib/algos.c	44	10	6
void _faceIjkPentToCellBoundary() in src/h3lib/lib/faceijk.c	67	10	5
int main() in src/apps/filters/latLngToCell.c	52	9	2
int main() in src/apps/filters/h3.c	20	9	2
void printHelp() in src/apps/applib/lib/args.c	30	9	7
H3Error H3_EXPORT() in src/h3lib/lib/localij.c	37	9	1
H3Error cellToBBox() in src/h3lib/lib/polyfill.c	33	9	3
H3Error H3_EXPORT() in src/h3lib/lib/h3Index.c	46	9	1
void doCell() in src/apps/filters/h3ToComponents.c	58	8	2
int main() in src/apps/filters/cellToLocalIj.c	40	8	2