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 30786-ffec283a2b) Lines: 2050 2158 95.0 % Date: 2026-04-07 09:25:56 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	11333
Idealstar	938
Idealstarmod	270820
Idealstarmod_i	271096
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	32708
ZC_add1	204718
ZC_cxlog	1765009
ZC_nfval	20262530
ZC_nfvalrem	24764684
ZC_prdvd	1294487
ZC_sub1	71777
ZMV_ZCV_mul	1919868
ZM_ZMV_mul	518
ZM_ZX_mul	10270947
ZV_snf_gcd	2321560
_mul	400408
_mulii	1091671470
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1065809
algtobasis	973771
apply_U	2781852
basistoalg	226047
bid_grp	271401
check_mod_factored	271739
checkarchp	134099
chineseinit_i	6687
chk_ind	37121
concat_join	758339
cxlog_1	23177
cxlog_m1	534
ei_multable	40294
eltmul	350770
eltpow	499899
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	271741
famat_to_nf_modideal_coprime	2927840
famat_zlog	1424660
famat_zlog_pr	2143561
famat_zlog_pr_coprime	196
get_C	730152
get_nf_field	54830
get_tab	40348463
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94610
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521358
ideallog_units	84
ideallog_units0	239956
ideallogmod	1528040
idealprincipalunits	196
idealprincipalunits_i	194091
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143701
init_zlog	395950
init_zlog_mod	2157248
is_chineseinit	13274
is_famat	54071552
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268498
join_idealinit	469
join_unit	448
log_gen_arch	111985
log_gen_pr	484218
log_prk	3124418
log_prk1	1686110
log_prk_init	95416
log_prk_units	518
log_prk_units_init	49
low_prec	4736963
matalgtobasis	33342
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	1359975
nf_to_scalar_or_alg	7165267
nf_to_scalar_or_basis	123879047
nf_to_scalar_or_polmod	2133859
nfadd	14282389
nfarchstar	658739
nfchecksigns	14506
nfchecksigns_i	105794
nfdiv	40286
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	279402
nfinv	188896
nfinvmodideal	175
nfispower	11708
nfissquare	1218
nflogembed	107646
nfmod	259
nfmul	24580987
nfmuli	4816827
nfmuli_ZC	8248667
nfmulmodideal	7849773
nfmulpowmodideal	5087500
nfnorm	216190
nfpolsturm	2163
nfpow	1026651
nfpow_u	370811
nfpowmodideal	6487553
nfsetsigns	864048
nfsign	53914
nfsign_arch	1268021
nfsqr	6108775
nfsqri	4709770
nfsqri_ZC	7353937
nfsqrmodideal	2813180
nfsub	1432749
nftrace	22501
nfval	5614586
nfvalrem	3666375
num_positive	1163318
oksigns	34205
order_update	739839
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3473990
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9646397
powp	973413
pr_basis_perm	72247
pr_equal	357
pr_init	6218
principal_units	194090
principal_units_relations	69958
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730151
sarch_get_MI	730153
sarch_get_archp	1863299
sarch_get_cyc	512132
sarch_get_lambda	730152
scalar_logembed	15820
set_sign_mod_divisor	894690
setsigns_init	480461
split_U	270367
sprk_get_AgL2	0
sprk_get_L2	1552214
sprk_get_U2	1532087
sprk_get_cyc	4570919
sprk_get_expo	2143758
sprk_get_ff	3041825
sprk_get_gen	370348
sprk_get_gnf	318214
sprk_get_k	63
sprk_get_pr	2820291
sprk_get_prk	5630484
sprk_is_prime	3041835
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145837
sprk_log_prk1	275854
sprk_log_prk1_2	444825
sprk_to_bid	63
sprkinit	465670
tablemul	0
tablemul_ei	4158
tablemul_ei_ej	5834
tablemulvec	2058
tablesqr	10356
to_RgX	119
vec01_to_indices	1327838
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275315
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194472
zkVchinese1	270555
zk_ei_mul	24698461
zk_embed	104206
zk_inv	309681
zk_modHNF	8139649
zk_multable	11372573
zk_scalar_or_multable	5356190
zkadd	0
zkadd1	301802
zkchinese	0
zkchinese1	301844
zkchinese1init2	259
zkchineseinit	270305
zkmul	301804
zkmultable_capZ	1328582
zkmultable_inv	1638256
zksub	0
zksub1	301845
zlog	495219

Generated by: LCOV version 1.16