Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - hgm.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1216 1255 96.9 % Date: 2026-02-23 02:23:56 Functions: 139 139 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
BAD2small	78
E2exp	804
Efuneq	31608
F2v_factorback	600
Flv_inv_p2	29088
Flv_red	522
Jordantame	66
Jordantameexpo	78
L0	527040
QV_normalize	1044
Q_krois	24360
RgV_addhalf	234
RgV_mirror	89268
RgXn_sqrtnu	36
al2cyE	1212
albe2u	198
allprims	723300
binomfact	99996
block0	18
checkhgm	1110
compu	1818
count2list	12
cyE_intersect	606
cycloE2cyclo	6
cyclodiscmodsq	108
cyclowt	88860
dirhgm_worker	3426
discprod	198
doprecomp	3144
doprecompmodp2	29088
eulfactameinit	90
forvecsort	84
frobpoltrunc	31686
gacfac	330
gapnpow	843816
get_CYCLOE	606
get_GF	29088
get_GH	29088
get_L0	29118
get_L1	32226
get_VPOLGA	600
get_achi	84
get_b1	834
get_dfp	32484
get_pad	3138
get_teich	3138
get_teich1	2526
get_u	402
gkgauss	49656
hgmC	201504
hgmCall	3144
hgmCallmodp2	29094
hgmCmodp2	15224940
hgmG	10536
hgmH	3348
hgmHmodp2	29088
hgmQ	10536
hgmU	246
hgm_get_BAD	32442
hgm_get_CYCLOE	10668
hgm_get_DEG	121554
hgm_get_HODGE	94134
hgm_get_MVALUE	594
hgm_get_OFFMPOL	559296
hgm_get_SIGNPAR	24540
hgm_get_SWAP	588
hgm_get_TT	75294
hgm_get_U	2520
hgm_get_U0	54
hgm_get_VAL	121584
hgm_get_VBE	30
hgm_get_VBEDEN	32226
hgm_get_VBENUM	32226
hgm_get_VPOLGA	598944
hgm_get_WT	93822
hgmalpha	18
hgmalphatogamma	198
hgmbydegree	18
hgmcharcond	222
hgmclass	32268
hgmcoef	72
hgmcoefs	342
hgmcyclo	6
hgmcyclotoalpha	89124
hgmeulerfactor	390
hgmeulerfactorlimit	31950
hgmfindvga	174
hgmgamma	18
hgmgammatoalpha	18
hgmgammatocyclo	18
hgminit	444
hgminit_i	444
hgmissymmetrical	6
hgmlfuninfty	174
hgmmodif	195198
hgmmoments	78
hgmmulti	21072
hgmparams	138
hgmsign	29088
hgmtrace	32448
hgmtwist	18
hodge	89268
initab	438
inv	3348
lfundivraw	30
lfunhgm	102
lfunhgm_i	96
lfunhgmispole	78
lfunhgmwild	84
listcond	84
listweil_i	1380
listweilallw_i	420
mangoldtexp	1170
mkal	156
mkalbe	18
mkallal	18
mkphi	18
mkpowers	31608
moebiusadd	9042
mul	30
ok_part	324
pari_close_hgm	1488
pari_init_hgm	1488
powers_u	31608
precomp	1824
primedivisors	522
remove_intersect	198
removebad	186
sumbinom	99996
sumdeg	109152
tag	96
tameexpo	12
teichmodp2	29088
umultop	174414
upowers_u	360
vecmellin	1464
zv_intersect	475656
zv_sumeuler	30
zv_to_prims	178248

Generated by: LCOV version 1.16