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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 96.9 % 1255 1216 Test Date: 2026-07-23 17:04:59 Functions: 100.0 % 139 139 Legend: Lines:     hit not hit

Function Name	Hit count
cycloE2cyclo	7
hgmcyclo	7
hgmissymmetrical	7
count2list	14
tameexpo	14
hgmalpha	21
hgmbydegree	21
hgmgamma	21
hgmgammatoalpha	21
hgmgammatocyclo	21
hgmtwist	21
mkalbe	21
mkallal	21
mkphi	21
hgm_get_VBE	35
lfundivraw	35
mul	35
zv_sumeuler	35
RgXn_sqrtnu	42
hgm_get_U0	63
Jordantame	77
hgmcoef	84
BAD2small	91
Jordantameexpo	91
hgmmoments	91
lfunhgmispole	91
block0	97
forvecsort	98
get_achi	98
lfunhgmwild	98
listcond	98
eulfactameinit	105
lfunhgm_i	112
tag	112
lfunhgm	119
cyclodiscmodsq	126
hgmparams	161
mkal	182
hgmfindvga	203
hgmlfuninfty	203
removebad	217
albe2u	231
discprod	231
hgmalphatogamma	231
remove_intersect	231
hgmcharcond	259
RgV_addhalf	273
hgmU	287
ok_part	378
gacfac	385
hgmcoefs	399
upowers_u	420
hgmeulerfactor	455
get_u	469
listweilallw_i	490
initab	511
hgminit	518
hgminit_i	518
Flv_red	609
primedivisors	609
hgm_get_SWAP	686
hgm_get_MVALUE	693
F2v_factorback	700
get_VPOLGA	700
cyE_intersect	707
get_CYCLOE	707
E2exp	938
get_b1	973
QV_normalize	1218
checkhgm	1295
mangoldtexp	1365
al2cyE	1414
listweil_i	1610
vecmellin	1708
compu	2155
precomp	2162
hgm_get_U	2940
get_teich1	2947
get_pad	3661
get_teich	3661
doprecomp	3668
hgmCall	3668
hgmH	3906
inv	3906
dirhgm_worker	3997
moebiusadd	10549
hgmG	12292
hgmQ	12292
hgm_get_CYCLOE	12446
hgmmulti	24584
Q_krois	28420
hgm_get_SIGNPAR	28630
Flv_inv_p2	33936
doprecompmodp2	33936
get_GF	33936
get_GH	33936
hgmHmodp2	33936
hgmsign	33936
teichmodp2	33936
hgmCallmodp2	33943
get_L0	33971
Efuneq	36876
mkpowers	36876
powers_u	36876
frobpoltrunc	36967
hgmeulerfactorlimit	37275
get_L1	37597
hgm_get_VBEDEN	37597
hgm_get_VBENUM	37597
hgmclass	37646
hgm_get_BAD	37849
hgmtrace	37856
get_dfp	37898
gkgauss	57932
hgm_get_TT	87843
cyclowt	103670
hgmcyclotoalpha	103978
RgV_mirror	104146
hodge	104146
hgm_get_WT	109459
hgm_get_HODGE	109823
binomfact	116955
sumbinom	116955
sumdeg	127344
hgm_get_DEG	141813
hgm_get_VAL	141848
umultop	203902
zv_to_prims	207956
hgmmodif	227731
hgmC	235088
pari_close_hgm	378540
pari_init_hgm	378548
zv_intersect	554932
L0	614880
hgm_get_OFFMPOL	652512
hgm_get_VPOLGA	698768
allprims	843850
gapnpow	984452
hgmCmodp2	17762430

Generated by: LCOV version 2.0-1