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 30719-2b7f142d49) Lines: 2050 2158 95.0 % Date: 2026-03-01 09:23:56 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	2058
tablemulvec	2058
nfembed_i	2147
nfpolsturm	2163
nfM_mul	2948
pl_normalize	2996
vecsmall01_to_indices	2996
matbasistoalg	3220
nfM_inv	3339
_nf_s	3353
tablemul_ei	4158
tablemul_ei_ej	5834
isprfact	6218
pr_init	6218
chineseinit_i	6687
RgM_to_nfM	6800
mulbytab	7300
tablesqr	10356
ideallist	10563
ideallist0	11298
Ideallist	11333
nfispower	11703
idealchinese	12779
is_chineseinit	13274
_nf_inv	13727
ideallog	13769
nfchecksigns	14506
gpnfvalrem	15015
scalar_logembed	15820
nftrace	21305
cxlog_1	23200
nfC_multable_mul	31375
RgX_to_nfX	32710
matalgtobasis	33216
oksigns	34198
chk_ind	37121
nfdiv	40279
ei_multable	40293
nfM_nfC_mul	48529
nfsign	53914
get_nf_field	54830
rnfbasistoalg	61264
principal_units_relations	69958
ZC_sub1	71776
idmul	72020
pr_basis_perm	72247
idpow	87971
idealfactorback	94616
log_prk_init	95416
zk_embed	104181
nfchecksigns_i	105795
nflogembed	107646
log_gen_arch	111989
RgC_to_nfC	112896
nfC_nf_mul	114287
nfeltsign	126175
parse_embed	129066
checkarchp	134105
indices_to_vec01	143702
sprk_log_gen_pr2	145835
polmod_nffix	181329
polmod_nffix2	181420
nfinv	188805
idealprincipalunits_i	194099
principal_units	194101
zkC_multable_mul	194470
_nf_neg	204392
ZC_add1	204717
nfnorm	216320
famat_cxlog	225453
basistoalg	226047
ideallog_units0	239962
join_ideal	268544
zkchineseinit	270325
split_U	270385
zkVchinese1	270568
Idealstarmod	270831
Idealstarmod_i	271107
bid_grp	271414
check_mod_factored	271750
famat_strip2	271763
zidealij	275324
sprk_log_prk1	275855
nffactorback	279397
zkadd1	301818
zkmul	301822
zkchinese1	301843
zksub1	301844
zk_inv	309574
sprk_get_gnf	318214
eltmul	350969
sprk_get_gen	370353
nfpow_u	370816
init_zlog	395953
_mul	400852
famat_nfvalrem	422947
sprk_log_prk1_2	444822
sprkinit	465706
setsigns_init	480453
log_gen_pr	484284
zlog	495233
eltpow	500096
sarch_get_cyc	512133
nfarchstar	658764
get_C	730105
sarch_get_F	730105
sarch_get_lambda	730105
sarch_get_MI	730106
order_update	739836
concat_join	759115
_nf_red	778543
nfsetsigns	864018
set_sign_mod_divisor	894664
algtobasis	971859
powp	973413
nfpow	1027183
_sqr	1066786
num_positive	1163325
nfsign_arch	1268095
ZC_prdvd	1294252
vec01_to_indices	1327910
zkmultable_capZ	1328587
nf_cxlog	1359975
famat_zlog	1424661
nfsub	1432749
ideallog_i	1521358
ideallogmod	1528040
sprk_get_U2	1532107
sprk_get_L2	1552219
zkmultable_inv	1638156
log_prk1	1686128
ZC_cxlog	1764982
sarch_get_archp	1863248
ZMV_ZCV_mul	1919871
nf_to_scalar_or_polmod	2133859
famat_zlog_pr	2143566
sprk_get_expo	2143762
init_zlog_mod	2157254
ZV_snf_gcd	2321630
apply_U	2781876
nfsqrmodideal	2813245
sprk_get_pr	2820297
famat_to_nf_modideal_coprime	2927851
sprk_get_ff	3041861
sprk_is_prime	3041879
log_prk	3124458
pol_to_scalar_or_basis	3473935
nfvalrem	3666374
_nf_add	3861892
_nf_mul	4502050
sprk_get_cyc	4571018
nfsqri	4710762
low_prec	4736935
nfmuli	4815259
nfmulpowmodideal	5087566
zk_scalar_or_multable	5356305
nfval	5609242
sprk_get_prk	5630536
nfsqr	6108719
nfpowmodideal	6487711
nf_to_scalar_or_alg	7163289
nfsqri_ZC	7354883
nfmulmodideal	7849896
zk_modHNF	8139801
nfmuli_ZC	8247215
poltobasis	9640599
ZM_ZX_mul	10263931
zk_multable	11370723
nfadd	14282340
ZC_nfval	20258106
nfmul	24580455
zk_ei_mul	24690260
ZC_nfvalrem	24760343
get_tab	40340155
is_famat	54070861
nf_to_scalar_or_basis	123873268
_mulii	1091752843

Generated by: LCOV version 1.16