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 - base2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30666-e2f9826198) Lines: 2227 2369 94.0 % Date: 2026-02-04 09:22:32 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254678
Flx_checkdeflate	1600909
Flx_radical	1600898
FpX_radical	5693
Fp_basis	312077
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087513
QXQV_to_FpM	203
QpXV_denom	508757
QpX_denom	2749428
QpX_remove_denom	1742846
RgV_nffix	49
RgX_nffix	328099
RgX_to_algX	1666
Rg_nffix	960417
ZX_Dedekind	1538194
ZX_rescale_inv	59935
Z_fac	197
Zlx_gcd	246172
Zlx_sylvester_echelon	4801757
ZpM_hnfmodid	454000
ZpX_disc_val	184479
ZpX_gcd	254683
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993025
ZpX_reduced_resultant_fast	931886
ZpX_resultant_val	3582079
ZpX_resultant_val_i	3628183
ZpX_round4	896
ZpX_sylvester_echelon	74159
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18383035
checkprid_i	23621235
compmod	287155
compositum	91
compositum2	2870
compositum_fix	26662
dbasis	620764
diag_denom	100225
diag_denomval	685915
ei_msqr_mod	352811
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222811
gc_nf_to_Fq	14188675
gen_if_principal	35
get_LV	216885
get_coprimes	294
get_d	3220
get_g	356370
get_gamma	303295
get_maxord	813192
get_modpr	137753
get_module	63
get_norm	505973
get_nu	641125
get_partial_order_as_pols	508761
get_powers	161557
get_pr	416581
get_prid	939477
getprime	563447
hnf_Znproj	1083962
ideal_is1	8049
idealprimedec	1299680
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3935819
idealprimedec_limit_f	2822376
idealprimedec_limit_norm	507437
indexpartial	44080
init_m	4513914
init_norm	216875
is_uniformizer	505971
lift_to_zk	93669
loop	238594
manage_cache	706016
maxord	1538196
maxord_disc	711222
maxord_i	454888
minval	3776
mk_pr	4396369
modpr_TAU	4050466
modpr_genFq	4508
modprinit	1212551
mul_intersect	712104
mycaract	706062
newtoncharpoly	699262
newtonsums	706072
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20667
nfX_rem	16523
nfX_sub	4144
nfX_to_FqX	9415
nfX_to_monic	1680
nfXisintegral	7329
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922053
nf_to_Fq_i	14189184
nf_to_Fq_init	4049238
nfbasis	938
nfcompositum	13442
nfcompositum_lambda	511
nfdisc	66463
nfdiscfactors	644772
nfidealdet1	63
nfisintegral	32235
nfmaxord	101975
nfmaxord_check_args	813202
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916033
p_is_prime	2212
pol_min	118934
polcompositum0	12889
poldiscfactors	42
poldiscfactors_i	788774
pow_ei_mod_p	748336
pr_anti_uniformizer	1005836
pr_factorback	4277
pr_factorback_scal	4277
pradical	216879
primedec_aux	2829280
primedec_end	216885
progress	394395
redelt	48555
redelt_i	64351
rnfallbase	3171
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4172
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4088
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15029
setPE	746713
set_disc	813162
split_char	480364
sqr_mod	830876
testb2	67184
testc2	48554
to_ff_init	4083347
triv_order	1513
uniformizer	299987
update_den	3569461
update_fact	2355
update_phi	276502
vstar	624109
zk_to_Fq	6521126
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1532509

Generated by: LCOV version 1.16