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 30824-18397de1d0) Lines: 1216 1255 96.9 % Date: 2026-04-18 09:26:04 Functions: 139 139 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
BAD2small	91
E2exp	938
Efuneq	36873
F2v_factorback	700
Flv_inv_p2	33933
Flv_red	609
Jordantame	77
Jordantameexpo	91
L0	614866
QV_normalize	1218
Q_krois	28417
RgV_addhalf	273
RgV_mirror	104146
RgXn_sqrtnu	42
al2cyE	1414
albe2u	231
allprims	843850
binomfact	116949
block0	97
checkhgm	1295
compu	2155
count2list	14
cyE_intersect	707
cycloE2cyclo	7
cyclodiscmodsq	126
cyclowt	103670
dirhgm_worker	3997
discprod	231
doprecomp	3668
doprecompmodp2	33933
eulfactameinit	105
forvecsort	98
frobpoltrunc	36958
gacfac	385
gapnpow	984440
get_CYCLOE	707
get_GF	33933
get_GH	33931
get_L0	33964
get_L1	37594
get_VPOLGA	700
get_achi	98
get_b1	973
get_dfp	37889
get_pad	3661
get_teich	3661
get_teich1	2947
get_u	469
gkgauss	57932
hgmC	235083
hgmCall	3668
hgmCallmodp2	33935
hgmCmodp2	16387345
hgmG	12292
hgmH	3906
hgmHmodp2	33929
hgmQ	12292
hgmU	287
hgm_get_BAD	37840
hgm_get_CYCLOE	12446
hgm_get_DEG	141775
hgm_get_HODGE	109795
hgm_get_MVALUE	693
hgm_get_OFFMPOL	652493
hgm_get_SIGNPAR	28628
hgm_get_SWAP	686
hgm_get_TT	87826
hgm_get_U	2940
hgm_get_U0	63
hgm_get_VAL	141810
hgm_get_VBE	35
hgm_get_VBEDEN	37595
hgm_get_VBENUM	37594
hgm_get_VPOLGA	698737
hgm_get_WT	109433
hgmalpha	21
hgmalphatogamma	231
hgmbydegree	21
hgmcharcond	259
hgmclass	37637
hgmcoef	84
hgmcoefs	399
hgmcyclo	7
hgmcyclotoalpha	103978
hgmeulerfactor	455
hgmeulerfactorlimit	37266
hgmfindvga	203
hgmgamma	21
hgmgammatoalpha	21
hgmgammatocyclo	21
hgminit	518
hgminit_i	518
hgmissymmetrical	7
hgmlfuninfty	203
hgmmodif	227731
hgmmoments	91
hgmmulti	24584
hgmparams	161
hgmsign	33934
hgmtrace	37847
hgmtwist	21
hodge	104146
initab	511
inv	3906
lfundivraw	35
lfunhgm	119
lfunhgm_i	112
lfunhgmispole	91
lfunhgmwild	98
listcond	98
listweil_i	1610
listweilallw_i	490
mangoldtexp	1365
mkal	182
mkalbe	21
mkallal	21
mkphi	21
mkpowers	36871
moebiusadd	10549
mul	35
ok_part	378
pari_close_hgm	367050
pari_init_hgm	371942
powers_u	36871
precomp	2162
primedivisors	609
remove_intersect	231
removebad	217
sumbinom	116949
sumdeg	127344
tag	112
tameexpo	14
teichmodp2	33935
umultop	203893
upowers_u	420
vecmellin	1708
zv_intersect	554932
zv_sumeuler	35
zv_to_prims	207956

Generated by: LCOV version 1.16