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 30561-4f4869c0e7) Lines: 2228 2369 94.0 % Date: 2025-11-28 09:21:39 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	2439
compositum2	2877
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	4242
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5692
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	12970
nfcompositum	13523
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26827
nfisintegral	32235
zk_to_Fq_init	34096
nf_pV_to_prV	38604
indexpartial	44096
redelt	48564
testc2	48564
ZX_rescale_inv	59991
redelt_i	64395
nfdisc	66464
testb2	67243
ZpX_sylvester_echelon	74180
lift_to_zk	93673
diag_denom	100532
nfmaxord	102172
pol_min	118956
get_modpr	137753
get_powers	161581
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184658
init_norm	216870
get_LV	216897
primedec_end	216898
pradical	216900
fnz	223478
loop	238772
Zlx_gcd	246309
ZpX_gcd	254835
Decomp	254837
update_phi	276606
compmod	287335
uniformizer	300024
get_gamma	303543
Fp_basis	312147
RgX_nffix	328284
ei_msqr_mod	352576
get_g	356634
progress	394633
get_pr	416627
ZpM_hnfmodid	454210
maxord_i	455103
split_char	480673
is_uniformizer	506042
get_norm	506048
idealprimedec_limit_norm	507440
get_partial_order_as_pols	509073
QpXV_denom	509076
getprime	563794
dbasis	621089
vstar	624514
get_nu	641469
nfdiscfactors	644779
diag_denomval	685890
newtoncharpoly	699599
manage_cache	706417
mycaract	706463
newtonsums	706478
maxord_disc	711235
mul_intersect	712263
setPE	746891
pow_ei_mod_p	748498
poldiscfactors_i	788759
set_disc	813366
get_maxord	813408
nfmaxord_check_args	813416
sqr_mod	830635
ZpX_reduced_resultant_fast	932293
get_prid	939659
Rg_nffix	962018
ZpX_reduced_resultant	993498
pr_anti_uniformizer	1006024
hnf_Znproj	1084225
modprinit	1212734
idealprimedec	1299805
zx_z_div	1533236
ZX_Dedekind	1538965
maxord	1538967
Flx_checkdeflate	1601625
Flx_radical	1601628
QpX_remove_denom	1743796
QpX_denom	2751270
idealprimedec_limit_f	2821917
primedec_aux	2828831
Fq_to_nf	3087506
update_den	3571992
ZpX_resultant_val	3581346
ZpX_resultant_val_i	3627531
idealprimedec_kummer	3934701
nf_to_Fq_init	4049421
modpr_TAU	4050679
to_ff_init	4083524
mk_pr	4395282
init_m	4513575
Zlx_sylvester_echelon	4801704
ok_modpr	4916324
zk_to_Fq	6521543
nf_to_Fq	12922420
gc_nf_to_Fq	14189051
nf_to_Fq_i	14189571
checkprid	18074432
checkprid_i	23311673

Generated by: LCOV version 1.16