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 30499-74bdd0ac5b) Lines: 2228 2369 94.0 % Date: 2025-09-16 09:24:07 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	1506
RgX_to_algX	1666
nfX_to_monic	1680
nfM_to_FqM	1872
rnfjoinmodules_i	2111
p_is_prime	2210
update_fact	2438
compositum2	2877
FqM_to_nfM	2934
rnfallbase	3164
get_d	3213
minval	3776
rnfmaxord	4067
ffdegree	4109
nfX_sub	4123
rnfdedekind_i	4151
_msqr	4158
fill	4222
fact_from_factors	4242
pr_factorback	4263
pr_factorback_scal	4263
modpr_genFq	4508
FpX_radical	5692
rnfeltid_powmod	5834
idealprimedec_galois	6552
nfXisintegral	7301
ideal_is1	8049
nfpolisintegral	8225
nfpolisintegral_i	8225
nfX_to_FqX	9373
FqX_to_nfX	10184
polcompositum0	12974
nfcompositum	13527
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20646
nf_pV_to_prVV	26614
compositum_fix	26830
nfisintegral	31955
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44096
testc2	48565
redelt	48566
ZX_rescale_inv	59985
redelt_i	64394
nfdisc	66465
testb2	67239
ZpX_sylvester_echelon	74045
lift_to_zk	93673
diag_denom	100532
nfmaxord	102176
pol_min	118959
get_modpr	137753
get_powers	161585
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184660
init_norm	216882
pradical	216898
get_LV	216900
primedec_end	216900
fnz	223459
loop	238775
Zlx_gcd	246319
Decomp	254835
ZpX_gcd	254838
update_phi	276604
compmod	287337
uniformizer	300036
get_gamma	303532
Fp_basis	312157
RgX_nffix	328267
ei_msqr_mod	352613
get_g	356624
progress	394628
get_pr	416648
ZpM_hnfmodid	454214
maxord_i	455109
split_char	480657
is_uniformizer	506063
get_norm	506065
idealprimedec_limit_norm	507440
QpXV_denom	509076
get_partial_order_as_pols	509079
getprime	563788
dbasis	621087
vstar	624508
get_nu	641455
nfdiscfactors	644781
diag_denomval	685889
newtoncharpoly	699588
manage_cache	706404
mycaract	706443
newtonsums	706451
maxord_disc	711240
mul_intersect	712297
setPE	746914
pow_ei_mod_p	748517
poldiscfactors_i	788796
set_disc	813400
get_maxord	813414
nfmaxord_check_args	813418
sqr_mod	830694
ZpX_reduced_resultant_fast	932278
get_prid	939659
Rg_nffix	961873
ZpX_reduced_resultant	993492
pr_anti_uniformizer	1006004
hnf_Znproj	1084198
modprinit	1212734
idealprimedec	1299784
zx_z_div	1533251
ZX_Dedekind	1538992
maxord	1538992
Flx_radical	1601675
Flx_checkdeflate	1601687
QpX_remove_denom	1743771
QpX_denom	2751255
idealprimedec_limit_f	2821874
primedec_aux	2828785
Fq_to_nf	3087275
update_den	3571953
ZpX_resultant_val	3581080
ZpX_resultant_val_i	3627195
idealprimedec_kummer	3934430
nf_to_Fq_init	4049415
modpr_TAU	4050653
to_ff_init	4083531
mk_pr	4395074
init_m	4513308
Zlx_sylvester_echelon	4801552
ok_modpr	4916326
zk_to_Fq	6521369
nf_to_Fq	12922419
gc_nf_to_Fq	14188754
nf_to_Fq_i	14189265
checkprid	18074536
checkprid_i	23311755

Generated by: LCOV version 1.16