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 30835-e55edf4b45) Lines: 2050 2158 95.0 % Date: 2026-04-25 09:26:46 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	11332
Idealstar	938
Idealstarmod	270842
Idealstarmod_i	271116
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	32708
ZC_add1	204724
ZC_cxlog	1765015
ZC_nfval	20262450
ZC_nfvalrem	24764637
ZC_prdvd	1294492
ZC_sub1	71778
ZMV_ZCV_mul	1919891
ZM_ZMV_mul	518
ZM_ZX_mul	10271134
ZV_snf_gcd	2321594
_mul	400483
_mulii	1091676918
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1066083
algtobasis	973781
apply_U	2781852
basistoalg	226047
bid_grp	271412
check_mod_factored	271760
checkarchp	134109
chineseinit_i	6687
chk_ind	37121
concat_join	758740
cxlog_1	23175
cxlog_m1	534
ei_multable	40295
eltmul	350718
eltpow	499845
famatQ_to_famatZ	35
famat_abs	35
famat_cba	35
famat_cxlog	225453
famat_logembed	1309
famat_nfvalrem	422947
famat_norm	35
famat_sign	35
famat_strip2	271751
famat_to_nf_modideal_coprime	2927848
famat_zlog	1424662
famat_zlog_pr	2143558
famat_zlog_pr_coprime	196
get_C	730211
get_nf_field	54830
get_tab	40349560
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94612
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521357
ideallog_units	84
ideallog_units0	239961
ideallogmod	1528040
idealprincipalunits	196
idealprincipalunits_i	194093
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143707
init_zlog	395951
init_zlog_mod	2157254
is_chineseinit	13274
is_famat	54071440
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268496
join_idealinit	469
join_unit	448
log_gen_arch	111985
log_gen_pr	484279
log_prk	3124418
log_prk1	1686122
log_prk_init	95416
log_prk_units	518
log_prk_units_init	49
low_prec	4736968
matalgtobasis	33341
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	1359976
nf_to_scalar_or_alg	7165248
nf_to_scalar_or_basis	123878043
nf_to_scalar_or_polmod	2133789
nfadd	14282389
nfarchstar	658818
nfchecksigns	14506
nfchecksigns_i	105793
nfdiv	40282
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	279399
nfinv	188896
nfinvmodideal	175
nfispower	11708
nfissquare	1218
nflogembed	107644
nfmod	259
nfmul	24580928
nfmuli	4816978
nfmuli_ZC	8248740
nfmulmodideal	7849790
nfmulpowmodideal	5087515
nfnorm	216187
nfpolsturm	2163
nfpow	1026713
nfpow_u	370809
nfpowmodideal	6487573
nfsetsigns	864113
nfsign	53914
nfsign_arch	1268032
nfsqr	6108736
nfsqri	4710033
nfsqri_ZC	7354160
nfsqrmodideal	2813191
nfsub	1432749
nftrace	22500
nfval	5614561
nfvalrem	3666377
num_positive	1163414
oksigns	34203
order_update	739839
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3473952
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9647548
powp	973413
pr_basis_perm	72247
pr_equal	357
pr_init	6218
principal_units	194092
principal_units_relations	69957
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730212
sarch_get_MI	730213
sarch_get_archp	1863439
sarch_get_cyc	512133
sarch_get_lambda	730211
scalar_logembed	15820
set_sign_mod_divisor	894758
setsigns_init	480528
split_U	270382
sprk_get_AgL2	0
sprk_get_L2	1552212
sprk_get_U2	1532096
sprk_get_cyc	4570968
sprk_get_expo	2143754
sprk_get_ff	3041824
sprk_get_gen	370354
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2820278
sprk_get_prk	5630453
sprk_is_prime	3041860
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145837
sprk_log_prk1	275852
sprk_log_prk1_2	444822
sprk_to_bid	63
sprkinit	465692
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5834
tablemulvec	2058
tablesqr	10356
to_RgX	119
vec01_to_indices	1327846
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275328
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194472
zkVchinese1	270571
zk_ei_mul	24699354
zk_embed	104206
zk_inv	309681
zk_modHNF	8139691
zk_multable	11373023
zk_scalar_or_multable	5356391
zkadd	0
zkadd1	301805
zkchinese	0
zkchinese1	301853
zkchinese1init2	259
zkchineseinit	270307
zkmul	301816
zkmultable_capZ	1328591
zkmultable_inv	1638270
zksub	0
zksub1	301854
zlog	495220

Generated by: LCOV version 1.16