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
Decomp	254837
Flx_checkdeflate	1601625
Flx_radical	1601628
FpX_radical	5692
Fp_basis	312147
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087506
QXQV_to_FpM	203
QpXV_denom	509076
QpX_denom	2751270
QpX_remove_denom	1743796
RgV_nffix	49
RgX_nffix	328284
RgX_to_algX	1666
Rg_nffix	962018
ZX_Dedekind	1538965
ZX_rescale_inv	59991
Z_fac	197
Zlx_gcd	246309
Zlx_sylvester_echelon	4801704
ZpM_hnfmodid	454210
ZpX_disc_val	184658
ZpX_gcd	254835
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993498
ZpX_reduced_resultant_fast	932293
ZpX_resultant_val	3581346
ZpX_resultant_val_i	3627531
ZpX_round4	896
ZpX_sylvester_echelon	74180
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074432
checkprid_i	23311673
compmod	287335
compositum	91
compositum2	2877
compositum_fix	26827
dbasis	621089
diag_denom	100532
diag_denomval	685890
ei_msqr_mod	352576
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223478
gc_nf_to_Fq	14189051
gen_if_principal	35
get_LV	216897
get_coprimes	294
get_d	3220
get_g	356634
get_gamma	303543
get_maxord	813408
get_modpr	137753
get_module	63
get_norm	506048
get_nu	641469
get_partial_order_as_pols	509073
get_powers	161581
get_pr	416627
get_prid	939659
getprime	563794
hnf_Znproj	1084225
ideal_is1	8049
idealprimedec	1299805
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934701
idealprimedec_limit_f	2821917
idealprimedec_limit_norm	507440
indexpartial	44096
init_m	4513575
init_norm	216870
is_uniformizer	506042
lift_to_zk	93673
loop	238772
manage_cache	706417
maxord	1538967
maxord_disc	711235
maxord_i	455103
minval	3776
mk_pr	4395282
modpr_TAU	4050679
modpr_genFq	4508
modprinit	1212734
mul_intersect	712263
mycaract	706463
newtoncharpoly	699599
newtonsums	706478
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	38604
nf_pV_to_prVV	26614
nf_to_Fq	12922420
nf_to_Fq_i	14189571
nf_to_Fq_init	4049421
nfbasis	938
nfcompositum	13523
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644779
nfidealdet1	63
nfisintegral	32235
nfmaxord	102172
nfmaxord_check_args	813416
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916324
p_is_prime	2212
pol_min	118956
polcompositum0	12970
poldiscfactors	42
poldiscfactors_i	788759
pow_ei_mod_p	748498
pr_anti_uniformizer	1006024
pr_factorback	4277
pr_factorback_scal	4277
pradical	216900
primedec_aux	2828831
primedec_end	216898
progress	394633
redelt	48564
redelt_i	64395
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	15050
setPE	746891
set_disc	813366
split_char	480673
sqr_mod	830635
testb2	67243
testc2	48564
to_ff_init	4083524
triv_order	1513
uniformizer	300024
update_den	3571992
update_fact	2439
update_phi	276606
vstar	624514
zk_to_Fq	6521543
zk_to_Fq_init	34096
zkmodprinit	175376
zx_z_div	1533236

Generated by: LCOV version 1.16