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 30590-f14e077362) Lines: 2050 2158 95.0 % Date: 2026-01-02 09:20:44 Functions: 226 237 95.4 % Legend: Lines: hit not hit

Function Name	Hit count
Ideallist	11333
Idealstar	938
Idealstarmod	270839
Idealstarmod_i	271108
Idealstarprk	273
Q_mod_bid	14
RgC_to_nfC	112896
RgM_RgX_mul	1365
RgM_to_nfM	6800
RgX_to_nfX	32720
ZC_add1	204719
ZC_cxlog	1765532
ZC_nfval	20166389
ZC_nfvalrem	24668334
ZC_prdvd	1294185
ZC_sub1	71778
ZMV_ZCV_mul	1919868
ZM_ZMV_mul	518
ZM_ZX_mul	10263707
ZV_snf_gcd	2321565
_mul	395914
_mulii	1091526110
_nf_add	3861892
_nf_inv	13727
_nf_mul	4502050
_nf_neg	204392
_nf_red	778543
_nf_s	3353
_sqr	1056777
algtobasis	971831
apply_U	2781851
basistoalg	226047
bid_grp	271381
check_mod_factored	271755
checkarchp	134108
chineseinit_i	6687
chk_ind	37121
concat_join	758550
cxlog_1	23174
cxlog_m1	534
ei_multable	40295
eltmul	350728
eltpow	499851
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	271746
famat_to_nf_modideal_coprime	2927847
famat_zlog	1424662
famat_zlog_pr	2143566
famat_zlog_pr_coprime	196
get_C	730068
get_nf_field	54830
get_tab	40317036
gideallist	63
gpnfvalrem	15015
idealHNF_norm_pval	63
idealchinese	12779
idealfactorback	94615
ideallist	10563
ideallist0	11298
ideallistarch	14
ideallog	13769
ideallog_i	1521357
ideallog_units	84
ideallog_units0	239958
ideallogmod	1528040
idealprincipalunits	196
idealprincipalunits_i	194094
idealstar0	0
idealstarmod	112
idmul	72020
idmulred	56
idpow	87971
idpowred	413
indices_to_vec01	143704
init_zlog	395955
init_zlog_mod	2157266
is_chineseinit	13274
is_famat	54066317
isprfact	6218
join_arch	42
join_archunit	14
join_bid	469
join_bid_arch	42
join_ideal	268525
join_idealinit	469
join_unit	448
log_gen_arch	111989
log_gen_pr	484281
log_prk	3124432
log_prk1	1686113
log_prk_init	95417
log_prk_units	518
log_prk_units_init	49
low_prec	4737500
matalgtobasis	33208
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	1359977
nf_to_scalar_or_alg	7166379
nf_to_scalar_or_basis	123867361
nf_to_scalar_or_polmod	2133859
nfadd	14282339
nfarchstar	658706
nfchecksigns	14506
nfchecksigns_i	105795
nfdiv	40275
nfdiveuc	259
nfdivrem	259
nfeltembed	735
nfeltembed_i	735
nfeltsign	126175
nfembed	0
nfembed_i	2147
nffactorback	279393
nfinv	188805
nfinvmodideal	175
nfispower	11713
nfissquare	1218
nflogembed	107646
nfmod	259
nfmul	24580208
nfmuli	4809490
nfmuli_ZC	8241534
nfmulmodideal	7848937
nfmulpowmodideal	5087080
nfnorm	220809
nfpolsturm	2163
nfpow	1023412
nfpow_u	370813
nfpowmodideal	6486934
nfsetsigns	863986
nfsign	53914
nfsign_arch	1268087
nfsqr	6108452
nfsqri	4699994
nfsqri_ZC	7343835
nfsqrmodideal	2812576
nfsub	1432749
nftrace	21306
nfval	5610026
nfvalrem	3667156
num_positive	1163267
oksigns	34202
order_update	739833
parse_embed	129066
pl_convert	1220
pl_normalize	2996
pol_to_scalar_or_basis	3473925
polmod_nffix	181329
polmod_nffix2	181420
poltobasis	9640110
powp	973413
pr_basis_perm	72247
pr_equal	357
pr_init	6218
principal_units	194095
principal_units_relations	69958
rnfalgtobasis	1428
rnfbasistoalg	61264
rnfeltnorm	462
rnfelttrace	1050
sarch_get_F	730068
sarch_get_MI	730071
sarch_get_archp	1863179
sarch_get_cyc	512127
sarch_get_lambda	730067
scalar_logembed	15820
set_sign_mod_divisor	894628
setsigns_init	480418
split_U	270372
sprk_get_AgL2	0
sprk_get_L2	1552201
sprk_get_U2	1532087
sprk_get_cyc	4570958
sprk_get_expo	2143762
sprk_get_ff	3041835
sprk_get_gen	370359
sprk_get_gnf	318207
sprk_get_k	63
sprk_get_pr	2820287
sprk_get_prk	5630463
sprk_is_prime	3041821
sprk_log_gen_pr	2037
sprk_log_gen_pr2	145838
sprk_log_prk1	275856
sprk_log_prk1_2	444820
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	1327902
veclog_prk	497
vecsmall01_to_indices	2996
zidealij	275325
zidealstar	0
zidealstarinit	0
zidealstarinitgen	0
zkC_multable_mul	194462
zkVchinese1	270565
zk_ei_mul	24684130
zk_embed	104188
zk_inv	309496
zk_modHNF	8138239
zk_multable	11365041
zk_scalar_or_multable	5351006
zkadd	0
zkadd1	301802
zkchinese	0
zkchinese1	301848
zkchinese1init2	259
zkchineseinit	270309
zkmul	301811
zkmultable_capZ	1328600
zkmultable_inv	1638094
zksub	0
zksub1	301852
zlog	495219

Generated by: LCOV version 1.16