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
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	12972
nfcompositum	13525
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26831
nfisintegral	32235
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44095
redelt	48568
testc2	48568
ZX_rescale_inv	59984
redelt_i	64396
nfdisc	66462
testb2	67237
ZpX_sylvester_echelon	74171
lift_to_zk	93671
diag_denom	100530
nfmaxord	102175
pol_min	118963
get_modpr	137753
get_powers	161589
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184660
init_norm	216867
pradical	216897
get_LV	216901
primedec_end	216901
fnz	223435
loop	238772
Zlx_gcd	246309
Decomp	254832
ZpX_gcd	254836
update_phi	276625
compmod	287337
uniformizer	300037
get_gamma	303527
Fp_basis	312164
RgX_nffix	328283
ei_msqr_mod	352615
get_g	356620
progress	394629
get_pr	416646
ZpM_hnfmodid	454213
maxord_i	455108
split_char	480686
is_uniformizer	506050
get_norm	506055
idealprimedec_limit_norm	507446
QpXV_denom	509068
get_partial_order_as_pols	509071
getprime	563799
dbasis	621097
vstar	624519
get_nu	641501
nfdiscfactors	644782
diag_denomval	685895
newtoncharpoly	699630
manage_cache	706441
mycaract	706486
newtonsums	706490
maxord_disc	711237
mul_intersect	712305
setPE	746866
pow_ei_mod_p	748518
poldiscfactors_i	788760
set_disc	813371
get_maxord	813413
nfmaxord_check_args	813420
sqr_mod	830692
ZpX_reduced_resultant_fast	932291
get_prid	939659
Rg_nffix	962019
ZpX_reduced_resultant	993504
pr_anti_uniformizer	1006052
hnf_Znproj	1084252
modprinit	1212749
idealprimedec	1299800
zx_z_div	1533264
ZX_Dedekind	1538982
maxord	1538985
Flx_radical	1601648
Flx_checkdeflate	1601657
QpX_remove_denom	1743841
QpX_denom	2751292
idealprimedec_limit_f	2821926
primedec_aux	2828838
Fq_to_nf	3087506
update_den	3572085
ZpX_resultant_val	3581333
ZpX_resultant_val_i	3627515
idealprimedec_kummer	3934703
nf_to_Fq_init	4049423
modpr_TAU	4050670
to_ff_init	4083531
mk_pr	4395305
init_m	4513561
Zlx_sylvester_echelon	4801696
ok_modpr	4916326
zk_to_Fq	6521473
nf_to_Fq	12922417
gc_nf_to_Fq	14189048
nf_to_Fq_i	14189554
checkprid	18074398
checkprid_i	23311680

Generated by: LCOV version 1.16