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 30849-48ff4d246c) Lines: 2050 2158 95.0 % Date: 2026-05-01 09:26:53 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	11707
idealchinese	12779
is_chineseinit	13274
_nf_inv	13727
ideallog	13769
nfchecksigns	14506
gpnfvalrem	15015
scalar_logembed	15820
nftrace	22498
cxlog_1	23174
nfC_multable_mul	31375
RgX_to_nfX	33301
matalgtobasis	33664
oksigns	34203
chk_ind	37121
nfdiv	40285
ei_multable	40294
nfM_nfC_mul	48529
nfsign	53913
get_nf_field	54830
rnfbasistoalg	61264
principal_units_relations	69957
ZC_sub1	71778
idmul	72020
pr_basis_perm	72247
idpow	87971
idealfactorback	94612
log_prk_init	95417
zk_embed	104202
nfchecksigns_i	105793
nflogembed	107646
log_gen_arch	111984
RgC_to_nfC	112896
nfC_nf_mul	114287
nfeltsign	126175
parse_embed	129066
checkarchp	134107
indices_to_vec01	143704
sprk_log_gen_pr2	145837
polmod_nffix	181329
polmod_nffix2	181420
nfinv	188896
idealprincipalunits_i	194097
principal_units	194097
zkC_multable_mul	194470
_nf_neg	204392
ZC_add1	204711
nfnorm	216207
famat_cxlog	225453
basistoalg	226047
ideallog_units0	239955
join_ideal	268518
zkchineseinit	270317
split_U	270381
zkVchinese1	270568
Idealstarmod	270832
Idealstarmod_i	271107
bid_grp	271406
famat_strip2	271744
check_mod_factored	271751
zidealij	275323
sprk_log_prk1	275854
nffactorback	279402
zkadd1	301790
zkmul	301810
zksub1	301853
zkchinese1	301854
zk_inv	309676
sprk_get_gnf	318214
eltmul	350566
sprk_get_gen	370355
nfpow_u	370812
init_zlog	395947
_mul	400403
famat_nfvalrem	422947
sprk_log_prk1_2	444822
sprkinit	465681
setsigns_init	480473
log_gen_pr	484281
zlog	495218
eltpow	499701
sarch_get_cyc	512127
nfarchstar	658755
sarch_get_F	730151
get_C	730152
sarch_get_MI	730152
sarch_get_lambda	730153
order_update	739846
concat_join	758795
_nf_red	778543
nfsetsigns	864046
set_sign_mod_divisor	894687
powp	973413
algtobasis	975065
nfpow	1026596
_sqr	1065959
num_positive	1163294
nfsign_arch	1267986
ZC_prdvd	1294508
vec01_to_indices	1327802
zkmultable_capZ	1328931
nf_cxlog	1359975
famat_zlog	1424660
nfsub	1432749
ideallog_i	1521354
ideallogmod	1528035
sprk_get_U2	1532067
sprk_get_L2	1552219
zkmultable_inv	1638607
log_prk1	1686127
ZC_cxlog	1765014
sarch_get_archp	1863291
ZMV_ZCV_mul	1919853
nf_to_scalar_or_polmod	2134874
famat_zlog_pr	2143567
sprk_get_expo	2143763
init_zlog_mod	2157244
ZV_snf_gcd	2321563
apply_U	2781870
nfsqrmodideal	2813160
sprk_get_pr	2820276
famat_to_nf_modideal_coprime	2927836
sprk_get_ff	3041828
sprk_is_prime	3041839
log_prk	3124418
pol_to_scalar_or_basis	3474283
nfvalrem	3666376
_nf_add	3861892
_nf_mul	4502050
sprk_get_cyc	4570959
nfsqri	4709876
low_prec	4736969
nfmuli	4816796
nfmulpowmodideal	5087462
zk_scalar_or_multable	5356546
nfval	5614580
sprk_get_prk	5630486
nfsqr	6108754
nfpowmodideal	6487367
nf_to_scalar_or_alg	7167209
nfsqri_ZC	7354009
nfmulmodideal	7849714
zk_modHNF	8139589
nfmuli_ZC	8248439
poltobasis	9648104
ZM_ZX_mul	10271642
zk_multable	11373406
nfadd	14282389
ZC_nfval	20262853
nfmul	24580812
zk_ei_mul	24699816
ZC_nfvalrem	24764986
get_tab	40349675
is_famat	54071122
nf_to_scalar_or_basis	123881156
_mulii	1091753492

Generated by: LCOV version 1.16