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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 95.0 % 2159 2051 Test Date: 2026-07-23 17:04:59 Functions: 95.4 % 237 226 Legend: Lines:     hit not hit

Function Name	Hit count
Ideallist	11333
Idealstar	938
Idealstarmod	270865
Idealstarmod_i	271138
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	33749
ZC_add1	204736
ZC_cxlog	1768971
ZC_nfval	20262180
ZC_nfvalrem	24764493
ZC_prdvd	1294509
ZC_sub1	71778
ZMV_ZCV_mul	1919927
ZM_ZMV_mul	518
ZM_ZX_mul	10293168
ZV_snf_gcd	2321772
_mul	398815
_mulii	1146487396
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1061777
algtobasis	975436
apply_U	2782031
basistoalg	226047
bid_grp	271453
check_mod_factored	271789
checkarchp	134113
chineseinit_i	6687
chk_ind	37121
concat_join	759815
cxlog_1	23451
cxlog_m1	541
ei_multable	40121
eltmul	350856
eltpow	499857
famatQ_to_famatZ	35
famat_abs	35
famat_cba	35
famat_cxlog	227519
famat_logembed	1309
famat_nfvalrem	422947
famat_norm	35
famat_sign	35
famat_strip2	271789
famat_to_nf_modideal_coprime	2927962
famat_zlog	1424663
famat_zlog_pr	2143570
famat_zlog_pr_coprime	196
get_C	730494
get_nf_field	54830
get_tab	40381673
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94612
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521361
ideallog_units	84
ideallog_units0	239967
ideallogmod	1528039
idealprincipalunits	196
idealprincipalunits_i	194103
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143710
init_zlog	395976
init_zlog_mod	2157304
is_chineseinit	13274
is_famat	54069892
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268702
join_idealinit	469
join_unit	448
log_gen_arch	111993
log_gen_pr	484309
log_prk	3124564
log_prk1	1686218
log_prk_init	95417
log_prk_units	518
log_prk_units_init	49
low_prec	4744909
matalgtobasis	33258
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	1363184
nf_to_scalar_or_alg	7169665
nf_to_scalar_or_basis	123910357
nf_to_scalar_or_polmod	2134874
nfadd	14282389
nfarchstar	659017
nfchecksigns	14506
nfchecksigns_i	105795
nfdiv	40153
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	281077
nfinv	188896
nfinvmodideal	175
nfispower	11701
nfissquare	2163
nflogembed	107646
nfmod	259
nfmul	24580851
nfmuli	4818043
nfmuli_ZC	8247258
nfmulmodideal	7853011
nfmulpowmodideal	5090484
nfnorm	216410
nfpolsturm	2163
nfpow	1025617
nfpow_u	370605
nfpowmodideal	6491368
nfsetsigns	864265
nfsign	53914
nfsign_arch	1271145
nfsqr	6108668
nfsqri	4706338
nfsqri_ZC	7350442
nfsqrmodideal	2813805
nfsub	1432749
nftrace	22505
nfval	5614624
nfvalrem	3666401
num_positive	1164143
oksigns	34239
order_update	739870
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3480213
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9654020
powp	973434
pr_basis_perm	72247
pr_equal	357
pr_init	6218
principal_units	194103
principal_units_relations	69958
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730494
sarch_get_MI	730494
sarch_get_archp	1863749
sarch_get_cyc	512197
sarch_get_lambda	730494
scalar_logembed	15820
set_sign_mod_divisor	894909
setsigns_init	480687
split_U	270396
sprk_get_AgL2	0
sprk_get_L2	1552329
sprk_get_U2	1532197
sprk_get_cyc	4571337
sprk_get_expo	2143766
sprk_get_ff	3041957
sprk_get_gen	370391
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2820337
sprk_get_prk	5630818
sprk_is_prime	3042020
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145845
sprk_log_prk1	275877
sprk_log_prk1_2	444871
sprk_to_bid	63
sprkinit	465745
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5834
tablemulvec	2058
tablesqr	10356
to_RgX	119
vec01_to_indices	1330967
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275331
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194458
zkVchinese1	270599
zk_ei_mul	24733860
zk_embed	104404
zk_inv	309366
zk_modHNF	8143458
zk_multable	11381383
zk_scalar_or_multable	5359470
zkadd	0
zkadd1	301882
zkchinese	0
zkchinese1	301882
zkchinese1init2	259
zkchineseinit	270340
zkmul	301882
zkmultable_capZ	1330600
zkmultable_inv	1639966
zksub	0
zksub1	301882
zlog	495257

Generated by: LCOV version 2.0-1