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 30775-9d8a55740a) Lines: 2050 2158 95.0 % Date: 2026-04-06 09:26:18 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	11333
Idealstar	938
Idealstarmod	270835
Idealstarmod_i	271100
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	32711
ZC_add1	204717
ZC_cxlog	1765017
ZC_nfval	20263001
ZC_nfvalrem	24765120
ZC_prdvd	1294552
ZC_sub1	71778
ZMV_ZCV_mul	1919851
ZM_ZMV_mul	518
ZM_ZX_mul	10271040
ZV_snf_gcd	2321574
_mul	400520
_mulii	1091790666
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1066238
algtobasis	973770
apply_U	2781872
basistoalg	226047
bid_grp	271400
check_mod_factored	271750
checkarchp	134104
chineseinit_i	6687
chk_ind	37121
concat_join	758688
cxlog_1	23171
cxlog_m1	534
ei_multable	40295
eltmul	350866
eltpow	500000
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	271752
famat_to_nf_modideal_coprime	2927824
famat_zlog	1424659
famat_zlog_pr	2143560
famat_zlog_pr_coprime	196
get_C	730111
get_nf_field	54830
get_tab	40349670
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94611
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521355
ideallog_units	84
ideallog_units0	239956
ideallogmod	1528039
idealprincipalunits	196
idealprincipalunits_i	194096
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143705
init_zlog	395955
init_zlog_mod	2157249
is_chineseinit	13274
is_famat	54071937
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268474
join_idealinit	469
join_unit	448
log_gen_arch	111986
log_gen_pr	484273
log_prk	3124424
log_prk1	1686129
log_prk_init	95415
log_prk_units	518
log_prk_units_init	49
low_prec	4736968
matalgtobasis	33342
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	1359976
nf_to_scalar_or_alg	7165185
nf_to_scalar_or_basis	123879079
nf_to_scalar_or_polmod	2133859
nfadd	14282389
nfarchstar	658730
nfchecksigns	14506
nfchecksigns_i	105793
nfdiv	40286
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	279400
nfinv	188896
nfinvmodideal	175
nfispower	11711
nfissquare	1218
nflogembed	107646
nfmod	259
nfmul	24581085
nfmuli	4816853
nfmuli_ZC	8248823
nfmulmodideal	7849724
nfmulpowmodideal	5087430
nfnorm	216234
nfpolsturm	2163
nfpow	1026852
nfpow_u	370806
nfpowmodideal	6487448
nfsetsigns	864011
nfsign	53914
nfsign_arch	1267975
nfsqr	6108784
nfsqri	4710221
nfsqri_ZC	7354402
nfsqrmodideal	2813203
nfsub	1432749
nftrace	22500
nfval	5614575
nfvalrem	3666369
num_positive	1163225
oksigns	34203
order_update	739845
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3473963
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9647512
powp	973413
pr_basis_perm	72246
pr_equal	357
pr_init	6218
principal_units	194096
principal_units_relations	69958
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730113
sarch_get_MI	730114
sarch_get_archp	1863235
sarch_get_cyc	512126
sarch_get_lambda	730112
scalar_logembed	15820
set_sign_mod_divisor	894656
setsigns_init	480434
split_U	270383
sprk_get_AgL2	0
sprk_get_L2	1552233
sprk_get_U2	1532102
sprk_get_cyc	4570915
sprk_get_expo	2143758
sprk_get_ff	3041827
sprk_get_gen	370348
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2820270
sprk_get_prk	5630483
sprk_is_prime	3041834
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145835
sprk_log_prk1	275855
sprk_log_prk1_2	444825
sprk_to_bid	63
sprkinit	465676
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5834
tablemulvec	2058
tablesqr	10356
to_RgX	119
vec01_to_indices	1327790
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275320
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194470
zkVchinese1	270555
zk_ei_mul	24699194
zk_embed	104202
zk_inv	309671
zk_modHNF	8139563
zk_multable	11372807
zk_scalar_or_multable	5356268
zkadd	0
zkadd1	301789
zkchinese	0
zkchinese1	301835
zkchinese1init2	259
zkchineseinit	270316
zkmul	301807
zkmultable_capZ	1328580
zkmultable_inv	1638247
zksub	0
zksub1	301840
zlog	495228

Generated by: LCOV version 1.16