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 30851-7844d7b3a5) Lines: 2050 2158 95.0 % Date: 2026-05-03 09:26:29 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
pl_convert	1220
famat_logembed	1309
RgM_RgX_mul	1365
rnfalgtobasis	1428
sprk_log_gen_pr	2037
multable	2058
tablemulvec	2058
nfembed_i	2147
nfissquare	2163
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	11702
idealchinese	12779
is_chineseinit	13274
_nf_inv	13727
ideallog	13769
nfchecksigns	14506
gpnfvalrem	15015
scalar_logembed	15820
nftrace	22502
cxlog_1	23179
nfC_multable_mul	31375
RgX_to_nfX	33297
matalgtobasis	33706
oksigns	34204
chk_ind	37121
nfdiv	40286
ei_multable	40295
nfM_nfC_mul	48529
nfsign	53914
get_nf_field	54830
rnfbasistoalg	61264
principal_units_relations	69958
ZC_sub1	71778
idmul	72020
pr_basis_perm	72247
idpow	87971
idealfactorback	94612
log_prk_init	95417
zk_embed	104206
nfchecksigns_i	105794
nflogembed	107646
log_gen_arch	111986
RgC_to_nfC	112896
nfC_nf_mul	114287
nfeltsign	126175
parse_embed	129066
checkarchp	134094
indices_to_vec01	143696
sprk_log_gen_pr2	145838
polmod_nffix	181329
polmod_nffix2	181420
nfinv	188896
idealprincipalunits_i	194090
principal_units	194095
zkC_multable_mul	194470
_nf_neg	204392
ZC_add1	204718
nfnorm	216218
famat_cxlog	225453
basistoalg	226047
ideallog_units0	239958
join_ideal	268499
zkchineseinit	270315
split_U	270383
zkVchinese1	270573
Idealstarmod	270833
Idealstarmod_i	271104
bid_grp	271404
check_mod_factored	271747
famat_strip2	271757
zidealij	275320
sprk_log_prk1	275855
nffactorback	279404
zkadd1	301803
zkmul	301822
zksub1	301850
zkchinese1	301851
zk_inv	309673
sprk_get_gnf	318214
eltmul	350621
sprk_get_gen	370352
nfpow_u	370807
init_zlog	395952
_mul	400510
famat_nfvalrem	422947
sprk_log_prk1_2	444825
sprkinit	465688
setsigns_init	480504
log_gen_pr	484275
zlog	495225
eltpow	499755
sarch_get_cyc	512129
nfarchstar	658808
sarch_get_MI	730187
get_C	730188
sarch_get_F	730188
sarch_get_lambda	730188
order_update	739837
concat_join	758976
_nf_red	778543
nfsetsigns	864080
set_sign_mod_divisor	894722
powp	973413
algtobasis	975153
nfpow	1026722
_sqr	1066188
num_positive	1163392
nfsign_arch	1268056
ZC_prdvd	1294500
vec01_to_indices	1327871
zkmultable_capZ	1328999
nf_cxlog	1359974
famat_zlog	1424662
nfsub	1432749
ideallog_i	1521359
ideallogmod	1528040
sprk_get_U2	1532091
sprk_get_L2	1552230
zkmultable_inv	1638666
log_prk1	1686129
ZC_cxlog	1765006
sarch_get_archp	1863364
ZMV_ZCV_mul	1919861
nf_to_scalar_or_polmod	2134874
famat_zlog_pr	2143561
sprk_get_expo	2143758
init_zlog_mod	2157258
ZV_snf_gcd	2321593
apply_U	2781864
nfsqrmodideal	2813165
sprk_get_pr	2820286
famat_to_nf_modideal_coprime	2927830
sprk_get_ff	3041847
sprk_is_prime	3041857
log_prk	3124441
pol_to_scalar_or_basis	3474283
nfvalrem	3666377
_nf_add	3861892
_nf_mul	4502050
sprk_get_cyc	4570925
nfsqri	4710117
low_prec	4736959
nfmuli	4816963
nfmulpowmodideal	5087539
zk_scalar_or_multable	5356685
nfval	5614583
sprk_get_prk	5630494
nfsqr	6108766
nfpowmodideal	6487481
nf_to_scalar_or_alg	7167319
nfsqri_ZC	7354272
nfmulmodideal	7849785
zk_modHNF	8139695
nfmuli_ZC	8248624
poltobasis	9648059
ZM_ZX_mul	10271555
zk_multable	11373538
nfadd	14282389
ZC_nfval	20262949
nfmul	24580862
zk_ei_mul	24699979
ZC_nfvalrem	24765110
get_tab	40350168
is_famat	54071363
nf_to_scalar_or_basis	123882068
_mulii	1091710038

Generated by: LCOV version 1.16