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

Generated by: LCOV version 1.16