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 - base3.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30651-3e52073f6d) Lines: 2050 2158 95.0 % Date: 2026-01-28 09:23:10 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	11333
Idealstar	938
Idealstarmod	270825
Idealstarmod_i	271097
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	32709
ZC_add1	204725
ZC_cxlog	1764985
ZC_nfval	20257976
ZC_nfvalrem	24760104
ZC_prdvd	1294232
ZC_sub1	71777
ZMV_ZCV_mul	1919874
ZM_ZMV_mul	518
ZM_ZX_mul	10263714
ZV_snf_gcd	2321595
_mul	400782
_mulii	1091688346
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1066466
algtobasis	971870
apply_U	2781868
basistoalg	226047
bid_grp	271410
check_mod_factored	271741
checkarchp	134097
chineseinit_i	6687
chk_ind	37121
concat_join	758773
cxlog_1	23195
cxlog_m1	534
ei_multable	40294
eltmul	350895
eltpow	500019
famatQ_to_famatZ	35
famat_abs	35
famat_cba	35
famat_cxlog	225453
famat_logembed	1309
famat_nfvalrem	422947
famat_norm	35
famat_sign	35
famat_strip2	271749
famat_to_nf_modideal_coprime	2927844
famat_zlog	1424663
famat_zlog_pr	2143558
famat_zlog_pr_coprime	196
get_C	730070
get_nf_field	54830
get_tab	40338497
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94615
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521359
ideallog_units	84
ideallog_units0	239957
ideallogmod	1528039
idealprincipalunits	196
idealprincipalunits_i	194097
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143698
init_zlog	395957
init_zlog_mod	2157264
is_chineseinit	13274
is_famat	54070511
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268516
join_idealinit	469
join_unit	448
log_gen_arch	111989
log_gen_pr	484267
log_prk	3124447
log_prk1	1686124
log_prk_init	95417
log_prk_units	518
log_prk_units_init	49
low_prec	4736940
matalgtobasis	33216
matbasistoalg	3220
mulbytab	7300
multable	2058
nfC_multable_mul	31375
nfC_nf_mul	114287
nfM_det	14
nfM_inv	3339
nfM_ker	0
nfM_mul	2948
nfM_nfC_mul	48529
nfV_cxlog	97
nf_cxlog	1359973
nf_to_scalar_or_alg	7163029
nf_to_scalar_or_basis	123871454
nf_to_scalar_or_polmod	2133859
nfadd	14282340
nfarchstar	658727
nfchecksigns	14506
nfchecksigns_i	105794
nfdiv	40277
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	279392
nfinv	188805
nfinvmodideal	175
nfispower	11702
nfissquare	1218
nflogembed	107646
nfmod	259
nfmul	24580375
nfmuli	4815109
nfmuli_ZC	8247019
nfmulmodideal	7849822
nfmulpowmodideal	5087461
nfnorm	216282
nfpolsturm	2163
nfpow	1026990
nfpow_u	370808
nfpowmodideal	6487499
nfsetsigns	863984
nfsign	53914
nfsign_arch	1268054
nfsqr	6108732
nfsqri	4710398
nfsqri_ZC	7354527
nfsqrmodideal	2813226
nfsub	1432749
nftrace	21303
nfval	5609257
nfvalrem	3666374
num_positive	1163245
oksigns	34198
order_update	739846
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3473969
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9640368
powp	973413
pr_basis_perm	72247
pr_equal	357
pr_init	6218
principal_units	194098
principal_units_relations	69958
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730069
sarch_get_MI	730071
sarch_get_archp	1863180
sarch_get_cyc	512113
sarch_get_lambda	730070
scalar_logembed	15820
set_sign_mod_divisor	894629
setsigns_init	480426
split_U	270375
sprk_get_AgL2	0
sprk_get_L2	1552216
sprk_get_U2	1532084
sprk_get_cyc	4570935
sprk_get_expo	2143754
sprk_get_ff	3041860
sprk_get_gen	370350
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2820276
sprk_get_prk	5630495
sprk_is_prime	3041831
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145836
sprk_log_prk1	275852
sprk_log_prk1_2	444822
sprk_to_bid	63
sprkinit	465705
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5834
tablemulvec	2058
tablesqr	10356
to_RgX	119
vec01_to_indices	1327868
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275321
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194468
zkVchinese1	270564
zk_ei_mul	24689352
zk_embed	104178
zk_inv	309536
zk_modHNF	8139584
zk_multable	11370254
zk_scalar_or_multable	5356098
zkadd	0
zkadd1	301800
zkchinese	0
zkchinese1	301844
zkchinese1init2	259
zkchineseinit	270325
zkmul	301815
zkmultable_capZ	1328585
zkmultable_inv	1638120
zksub	0
zksub1	301849
zlog	495230

Generated by: LCOV version 1.16