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

Generated by: LCOV version 1.16