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 30640-c2c58e18c5) Lines: 2227 2369 94.0 % Date: 2026-01-27 08:51:18 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
compositum	65
nfmodprinit0	77
nfmodprlift	77
rnfdiscf	77
rnfdedekind	91
Z_fac	197
QXQV_to_FpM	203
checkmodpr	210
nfreducemodpr	210
get_coprimes	287
nfmodpr	350
idealprimedec_degrees	371
fix_PE	505
nfcompositum_lambda	511
ZpX_monic_factor	546
rnfdisc_factored	838
expo_is_squarefree	889
ZpX_round4	896
nfbasis	896
ZpX_monic_factor_squarefree	1155
rnfjoinmodules	1329
triv_order	1513
RgX_to_algX	1606
nfX_to_monic	1620
ffdegree	1691
p_is_prime	1738
nfM_to_FqM	1806
rnfjoinmodules_i	2045
compositum2	2081
update_fact	2360
FqM_to_nfM	2802
rnfallbase	3141
get_d	3190
fact_from_factors	3416
minval	3470
rnfmaxord	4046
fill	4090
nfX_sub	4102
rnfdedekind_i	4130
_msqr	4158
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
rnfeltid_powmod	5306
FpX_radical	5543
idealprimedec_galois	6378
nfXisintegral	7257
ideal_is1	7455
nfpolisintegral	8079
nfpolisintegral_i	8079
nfX_to_FqX	9331
FqX_to_nfX	10112
polcompositum0	11732
safe_Z_pvalrem	12215
nfcompositum	12285
_sqr	14078
nfXQ_mul	14147
nfX_rem	14147
indexpartial	16353
nfX_mul	18249
nfdisc	19153
zk_to_Fq_init	22501
compositum_fix	24373
nf_pV_to_prVV	26590
lift_to_zk	31641
nfisintegral	31767
nf_pV_to_prV	37093
redelt	37370
testc2	37370
redelt_i	47638
testb2	48981
ZX_rescale_inv	56090
ZpX_sylvester_echelon	73886
diag_denom	80074
nfmaxord	82196
pol_min	84313
get_powers	97813
init_norm	117193
pradical	117196
get_LV	117197
primedec_end	117197
get_modpr	137753
ZpX_disc_val	164936
nfV_to_FqV	167410
zkmodprinit	170674
fnz	180190
uniformizer	193680
loop	198641
Zlx_gcd	229237
update_phi	232411
Fp_basis	235694
compmod	236013
Decomp	237605
ZpX_gcd	237610
get_gamma	241753
get_pr	273715
RgX_nffix	289194
get_g	293047
ei_msqr_mod	306605
get_norm	318493
is_uniformizer	318493
progress	330701
split_char	384737
ZpM_hnfmodid	404178
maxord_i	405073
getprime	464276
idealprimedec_limit_norm	465388
QpXV_denom	474620
get_partial_order_as_pols	474620
pow_ei_mod_p	493449
vstar	521018
get_nu	530792
dbasis	537757
mul_intersect	549379
newtoncharpoly	563278
manage_cache	567985
mycaract	568014
newtonsums	568016
diag_denomval	595734
sqr_mod	640307
nfdiscfactors	644779
maxord_disc	663915
setPE	726898
poldiscfactors_i	727700
set_disc	746067
get_maxord	746119
nfmaxord_check_args	746125
ZpX_reduced_resultant_fast	763353
pr_anti_uniformizer	764784
ZpX_reduced_resultant	822249
Rg_nffix	822537
hnf_Znproj	871635
get_prid	939477
modprinit	955199
idealprimedec	1188105
zx_z_div	1386568
ZX_Dedekind	1392163
maxord	1392165
QpX_remove_denom	1449780
Flx_radical	1452104
Flx_checkdeflate	1452108
QpX_denom	2381852
idealprimedec_limit_f	2406408
primedec_aux	2413153
update_den	3003272
Fq_to_nf	3030801
ZpX_resultant_val	3079314
ZpX_resultant_val_i	3124140
nf_to_Fq_init	3338768
modpr_TAU	3339965
to_ff_init	3361267
idealprimedec_kummer	3436510
mk_pr	3718280
init_m	3842626
Zlx_sylvester_echelon	4110091
ok_modpr	4194084
zk_to_Fq	6297434
nf_to_Fq	12592639
gc_nf_to_Fq	13762386
nf_to_Fq_i	13762892
checkprid	17620785
checkprid_i	22128083

Generated by: LCOV version 1.16