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 30571-c0dfe82732) Lines: 2228 2369 94.0 % Date: 2025-12-10 09:22:03 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254841
Flx_checkdeflate	1601738
Flx_radical	1601710
FpX_radical	5693
Fp_basis	312330
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087520
QXQV_to_FpM	203
QpXV_denom	509083
QpX_denom	2751341
QpX_remove_denom	1743852
RgV_nffix	49
RgX_nffix	328299
RgX_to_algX	1666
Rg_nffix	962081
ZX_Dedekind	1539087
ZX_rescale_inv	59991
Z_fac	197
Zlx_gcd	246320
Zlx_sylvester_echelon	4803410
ZpM_hnfmodid	454226
ZpX_disc_val	184676
ZpX_gcd	254842
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993559
ZpX_reduced_resultant_fast	932362
ZpX_resultant_val	3583008
ZpX_resultant_val_i	3629145
ZpX_round4	896
ZpX_sylvester_echelon	74183
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18313453
checkprid_i	23551489
compmod	287347
compositum	91
compositum2	2884
compositum_fix	26845
dbasis	621164
diag_denom	100592
diag_denomval	685905
ei_msqr_mod	353080
errprime	0
expo_is_squarefree	889
fact_from_factors	4249
ffdegree	4109
fill	4222
fix_PE	512
fnz	223581
gc_nf_to_Fq	14189058
gen_if_principal	35
get_LV	216980
get_coprimes	294
get_d	3220
get_g	356638
get_gamma	303543
get_maxord	813434
get_modpr	137753
get_module	63
get_norm	506172
get_nu	641518
get_partial_order_as_pols	509079
get_powers	161629
get_pr	416818
get_prid	939659
getprime	563827
hnf_Znproj	1084279
ideal_is1	8049
idealprimedec	1299862
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936377
idealprimedec_limit_f	2822770
idealprimedec_limit_norm	507446
indexpartial	44096
init_m	4515302
init_norm	216954
is_uniformizer	506168
lift_to_zk	93671
loop	238784
manage_cache	706462
maxord	1539090
maxord_disc	711231
maxord_i	455125
minval	3776
mk_pr	4397116
modpr_TAU	4050739
modpr_genFq	4508
modprinit	1212821
mul_intersect	712675
mycaract	706503
newtoncharpoly	699662
newtonsums	706516
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	12922433
nf_to_Fq_i	14189580
nf_to_Fq_init	4049492
nfbasis	938
nfcompositum	13534
nfcompositum_lambda	511
nfdisc	66462
nfdiscfactors	644780
nfidealdet1	63
nfisintegral	32235
nfmaxord	102198
nfmaxord_check_args	813442
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916416
p_is_prime	2210
pol_min	119003
polcompositum0	12981
poldiscfactors	42
poldiscfactors_i	788789
pow_ei_mod_p	748811
pr_anti_uniformizer	1006049
pr_factorback	4277
pr_factorback_scal	4277
pradical	216978
primedec_aux	2829679
primedec_end	216980
progress	394641
redelt	48567
redelt_i	64399
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	15092
setPE	746925
set_disc	813396
split_char	480683
sqr_mod	831411
testb2	67246
testc2	48567
to_ff_init	4083612
triv_order	1513
uniformizer	300148
update_den	3572148
update_fact	2439
update_phi	276649
vstar	624553
zk_to_Fq	6521677
zk_to_Fq_init	34111
zkmodprinit	175411
zx_z_div	1533308

Generated by: LCOV version 1.16