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
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	2210
update_fact	2439
compositum2	2884
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	4249
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5693
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	12981
nfcompositum	13534
safe_Z_pvalrem	15092
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26845
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44096
redelt	48567
testc2	48567
ZX_rescale_inv	59991
redelt_i	64399
nfdisc	66462
testb2	67246
ZpX_sylvester_echelon	74183
lift_to_zk	93671
diag_denom	100592
nfmaxord	102198
pol_min	119003
get_modpr	137753
get_powers	161629
nfV_to_FqV	167410
zkmodprinit	175411
ZpX_disc_val	184676
init_norm	216954
pradical	216978
get_LV	216980
primedec_end	216980
fnz	223581
loop	238784
Zlx_gcd	246320
Decomp	254841
ZpX_gcd	254842
update_phi	276649
compmod	287347
uniformizer	300148
get_gamma	303543
Fp_basis	312330
RgX_nffix	328299
ei_msqr_mod	353080
get_g	356638
progress	394641
get_pr	416818
ZpM_hnfmodid	454226
maxord_i	455125
split_char	480683
is_uniformizer	506168
get_norm	506172
idealprimedec_limit_norm	507446
get_partial_order_as_pols	509079
QpXV_denom	509083
getprime	563827
dbasis	621164
vstar	624553
get_nu	641518
nfdiscfactors	644780
diag_denomval	685905
newtoncharpoly	699662
manage_cache	706462
mycaract	706503
newtonsums	706516
maxord_disc	711231
mul_intersect	712675
setPE	746925
pow_ei_mod_p	748811
poldiscfactors_i	788789
set_disc	813396
get_maxord	813434
nfmaxord_check_args	813442
sqr_mod	831411
ZpX_reduced_resultant_fast	932362
get_prid	939659
Rg_nffix	962081
ZpX_reduced_resultant	993559
pr_anti_uniformizer	1006049
hnf_Znproj	1084279
modprinit	1212821
idealprimedec	1299862
zx_z_div	1533308
ZX_Dedekind	1539087
maxord	1539090
Flx_radical	1601710
Flx_checkdeflate	1601738
QpX_remove_denom	1743852
QpX_denom	2751341
idealprimedec_limit_f	2822770
primedec_aux	2829679
Fq_to_nf	3087520
update_den	3572148
ZpX_resultant_val	3583008
ZpX_resultant_val_i	3629145
idealprimedec_kummer	3936377
nf_to_Fq_init	4049492
modpr_TAU	4050739
to_ff_init	4083612
mk_pr	4397116
init_m	4515302
Zlx_sylvester_echelon	4803410
ok_modpr	4916416
zk_to_Fq	6521677
nf_to_Fq	12922433
gc_nf_to_Fq	14189058
nf_to_Fq_i	14189580
checkprid	18313453
checkprid_i	23551489

Generated by: LCOV version 1.16