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 30640-c2c58e18c5) Lines: 2048 2158 94.9 % Date: 2026-01-27 08:51:18 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	8192
Idealstar	938
Idealstarmod	122250
Idealstarmod_i	122522
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	111768
RgM_RgX_mul	1365
RgM_to_nfM	6644
RgX_to_nfX	24779
ZC_add1	79288
ZC_cxlog	1722798
ZC_nfval	19350664
ZC_nfvalrem	23648572
ZC_prdvd	1126423
ZC_sub1	21778
ZMV_ZCV_mul	1667050
ZM_ZMV_mul	518
ZM_ZX_mul	8994387
ZV_snf_gcd	1757022
_mul	339353
_mulii	1045789647
_nf_add	2834152
_nf_inv	12539
_nf_mul	3340558
_nf_neg	161522
_nf_red	627619
_nf_s	3221
_sqr	909911
algtobasis	915363
apply_U	2312721
basistoalg	225777
bid_grp	122840
check_mod_factored	123166
checkarchp	24601
chineseinit_i	6687
chk_ind	37121
concat_join	258241
cxlog_1	20826
cxlog_m1	534
ei_multable	12429
eltmul	278487
eltpow	393557
famatQ_to_famatZ	35
famat_abs	35
famat_cba	35
famat_cxlog	221501
famat_logembed	1309
famat_nfvalrem	422947
famat_norm	35
famat_sign	35
famat_strip2	123167
famat_to_nf_modideal_coprime	2434283
famat_zlog	1383413
famat_zlog_pr	2017251
famat_zlog_pr_coprime	196
get_C	630461
get_nf_field	46844
get_tab	35379568
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	67583
ideallist	7422
ideallist0	8157
ideallistarch	14
ideallog	13769
ideallog_i	1479559
ideallog_units	84
ideallog_units0	102849
ideallogmod	1486237
idealprincipalunits	196
idealprincipalunits_i	118757
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	34180
init_zlog	203758
init_zlog_mod	1786163
is_chineseinit	13274
is_famat	51488610
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	107060
join_idealinit	469
join_unit	448
log_gen_arch	61767
log_gen_pr	246659
log_prk	2607189
log_prk1	1408625
log_prk_init	71293
log_prk_units	518
log_prk_units_init	49
low_prec	4643430
matalgtobasis	33216
matbasistoalg	3190
mulbytab	7282
multable	2052
nfC_multable_mul	30709
nfC_nf_mul	111461
nfM_det	14
nfM_inv	3207
nfM_ker	0
nfM_mul	2816
nfM_nfC_mul	40807
nfV_cxlog	97
nf_cxlog	1315474
nf_to_scalar_or_alg	6595498
nf_to_scalar_or_basis	115259941
nf_to_scalar_or_polmod	2133859
nfadd	13184845
nfarchstar	482278
nfchecksigns	14506
nfchecksigns_i	88416
nfdiv	37735
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	245340
nfinv	186390
nfinvmodideal	175
nfispower	8646
nfissquare	1218
nflogembed	81091
nfmod	259
nfmul	23230402
nfmuli	4244079
nfmuli_ZC	7747427
nfmulmodideal	6657442
nfmulpowmodideal	4532439
nfnorm	215766
nfpolsturm	2163
nfpow	835825
nfpow_u	344955
nfpowmodideal	5451121
nfsetsigns	721504
nfsign	29907
nfsign_arch	1147414
nfsqr	5682260
nfsqri	3702155
nfsqri_ZC	6291445
nfsqrmodideal	2151955
nfsub	1403409
nftrace	21302
nfval	5606634
nfvalrem	3666377
num_positive	1082696
oksigns	24325
order_update	506970
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	2913198
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	8465699
powp	973413
pr_basis_perm	50918
pr_equal	357
pr_init	6218
principal_units	118757
principal_units_relations	43360
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	630461
sarch_get_MI	630461
sarch_get_archp	1560848
sarch_get_cyc	226464
sarch_get_lambda	630461
scalar_logembed	15724
set_sign_mod_divisor	752148
setsigns_init	411926
split_U	121784
sprk_get_AgL2	0
sprk_get_L2	1318446
sprk_get_U2	1292948
sprk_get_cyc	3708791
sprk_get_expo	2017447
sprk_get_ff	2572414
sprk_get_gen	153469
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2639846
sprk_get_prk	4971039
sprk_is_prime	2572478
sprk_log_gen_pr	2037
sprk_log_gen_pr2	91676
sprk_log_prk1	275854
sprk_log_prk1_2	380956
sprk_to_bid	63
sprkinit	224698
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5306
tablemulvec	2052
tablesqr	8772
to_RgX	119
vec01_to_indices	1201668
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	169467
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	189408
zkVchinese1	104821
zk_ei_mul	21319322
zk_embed	85646
zk_inv	279537
zk_modHNF	6793493
zk_multable	9341029
zk_scalar_or_multable	4125414
zkadd	0
zkadd1	122945
zkchinese	0
zkchinese1	122946
zkchinese1init2	259
zkchineseinit	104562
zkmul	122947
zkmultable_capZ	1234383
zkmultable_inv	1513919
zksub	0
zksub1	122947
zlog	283632

Generated by: LCOV version 1.16