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 30550-07450a7a86) Lines: 2228 2369 94.0 % Date: 2025-11-17 09:22:41 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254831
Flx_checkdeflate	1601644
Flx_radical	1601648
FpX_radical	5692
Fp_basis	312171
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087505
QXQV_to_FpM	203
QpXV_denom	509065
QpX_denom	2751175
QpX_remove_denom	1743715
RgV_nffix	49
RgX_nffix	328282
RgX_to_algX	1666
Rg_nffix	962013
ZX_Dedekind	1538969
ZX_rescale_inv	59986
Z_fac	197
Zlx_gcd	246309
Zlx_sylvester_echelon	4801656
ZpM_hnfmodid	454195
ZpX_disc_val	184658
ZpX_gcd	254833
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993492
ZpX_reduced_resultant_fast	932283
ZpX_resultant_val	3581307
ZpX_resultant_val_i	3627482
ZpX_round4	896
ZpX_sylvester_echelon	74171
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074566
checkprid_i	23311778
compmod	287325
compositum	91
compositum2	2877
compositum_fix	26827
dbasis	621097
diag_denom	100528
diag_denomval	685893
ei_msqr_mod	352618
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223434
gc_nf_to_Fq	14189040
gen_if_principal	35
get_LV	216905
get_coprimes	294
get_d	3220
get_g	356612
get_gamma	303523
get_maxord	813412
get_modpr	137753
get_module	63
get_norm	506067
get_nu	641458
get_partial_order_as_pols	509066
get_powers	161592
get_pr	416653
get_prid	939659
getprime	563787
hnf_Znproj	1084221
ideal_is1	8049
idealprimedec	1299798
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934675
idealprimedec_limit_f	2821937
idealprimedec_limit_norm	507443
indexpartial	44095
init_m	4513546
init_norm	216878
is_uniformizer	506064
lift_to_zk	93673
loop	238765
manage_cache	706397
maxord	1538970
maxord_disc	711238
maxord_i	455103
minval	3776
mk_pr	4395305
modpr_TAU	4050589
modpr_genFq	4508
modprinit	1212745
mul_intersect	712327
mycaract	706429
newtoncharpoly	699551
newtonsums	706449
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	12922415
nf_to_Fq_i	14189548
nf_to_Fq_init	4049465
nfbasis	938
nfcompositum	13528
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644784
nfidealdet1	63
nfisintegral	32235
nfmaxord	102176
nfmaxord_check_args	813417
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916366
p_is_prime	2212
pol_min	118966
polcompositum0	12975
poldiscfactors	42
poldiscfactors_i	788772
pow_ei_mod_p	748511
pr_anti_uniformizer	1006033
pr_factorback	4277
pr_factorback_scal	4277
pradical	216897
primedec_aux	2828849
primedec_end	216905
progress	394622
redelt	48562
redelt_i	64391
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	746882
set_disc	813386
split_char	480641
sqr_mod	830690
testb2	67234
testc2	48562
to_ff_init	4083571
triv_order	1513
uniformizer	300041
update_den	3571897
update_fact	2439
update_phi	276619
vstar	624510
zk_to_Fq	6521464
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533250

Generated by: LCOV version 1.16