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 30552-d1d0643eee) Lines: 2228 2369 94.0 % Date: 2025-11-22 09:22:46 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254832
Flx_checkdeflate	1601657
Flx_radical	1601648
FpX_radical	5692
Fp_basis	312164
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	509068
QpX_denom	2751292
QpX_remove_denom	1743841
RgV_nffix	49
RgX_nffix	328283
RgX_to_algX	1666
Rg_nffix	962019
ZX_Dedekind	1538982
ZX_rescale_inv	59984
Z_fac	197
Zlx_gcd	246309
Zlx_sylvester_echelon	4801696
ZpM_hnfmodid	454213
ZpX_disc_val	184660
ZpX_gcd	254836
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993504
ZpX_reduced_resultant_fast	932291
ZpX_resultant_val	3581333
ZpX_resultant_val_i	3627515
ZpX_round4	896
ZpX_sylvester_echelon	74171
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074398
checkprid_i	23311680
compmod	287337
compositum	91
compositum2	2877
compositum_fix	26831
dbasis	621097
diag_denom	100530
diag_denomval	685895
ei_msqr_mod	352615
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223435
gc_nf_to_Fq	14189048
gen_if_principal	35
get_LV	216901
get_coprimes	294
get_d	3220
get_g	356620
get_gamma	303527
get_maxord	813413
get_modpr	137753
get_module	63
get_norm	506055
get_nu	641501
get_partial_order_as_pols	509071
get_powers	161589
get_pr	416646
get_prid	939659
getprime	563799
hnf_Znproj	1084252
ideal_is1	8049
idealprimedec	1299800
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934703
idealprimedec_limit_f	2821926
idealprimedec_limit_norm	507446
indexpartial	44095
init_m	4513561
init_norm	216867
is_uniformizer	506050
lift_to_zk	93671
loop	238772
manage_cache	706441
maxord	1538985
maxord_disc	711237
maxord_i	455108
minval	3776
mk_pr	4395305
modpr_TAU	4050670
modpr_genFq	4508
modprinit	1212749
mul_intersect	712305
mycaract	706486
newtoncharpoly	699630
newtonsums	706490
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	12922417
nf_to_Fq_i	14189554
nf_to_Fq_init	4049423
nfbasis	938
nfcompositum	13525
nfcompositum_lambda	511
nfdisc	66462
nfdiscfactors	644782
nfidealdet1	63
nfisintegral	32235
nfmaxord	102175
nfmaxord_check_args	813420
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916326
p_is_prime	2212
pol_min	118963
polcompositum0	12972
poldiscfactors	42
poldiscfactors_i	788760
pow_ei_mod_p	748518
pr_anti_uniformizer	1006052
pr_factorback	4277
pr_factorback_scal	4277
pradical	216897
primedec_aux	2828838
primedec_end	216901
progress	394629
redelt	48568
redelt_i	64396
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	746866
set_disc	813371
split_char	480686
sqr_mod	830692
testb2	67237
testc2	48568
to_ff_init	4083531
triv_order	1513
uniformizer	300037
update_den	3572085
update_fact	2439
update_phi	276625
vstar	624519
zk_to_Fq	6521473
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533264

Generated by: LCOV version 1.16