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 30359-47f31365a1) Lines: 2228 2369 94.0 % Date: 2025-06-29 09:21:56 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254830
Flx_checkdeflate	1601678
Flx_radical	1601670
FpX_radical	5692
Fp_basis	312145
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10184
Fq_to_nf	3087274
QXQV_to_FpM	203
QpXV_denom	509075
QpX_denom	2751299
QpX_remove_denom	1743837
RgV_nffix	49
RgX_nffix	328268
RgX_to_algX	1666
Rg_nffix	961873
ZX_Dedekind	1538974
ZX_rescale_inv	59984
Z_fac	183
Zlx_gcd	246306
Zlx_sylvester_echelon	4797886
ZpM_hnfmodid	454204
ZpX_disc_val	184664
ZpX_gcd	254836
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993492
ZpX_reduced_resultant_fast	932259
ZpX_resultant_val	3577385
ZpX_resultant_val_i	3623579
ZpX_round4	896
ZpX_sylvester_echelon	74055
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18054623
checkprid_i	23289155
compmod	287343
compositum	91
compositum2	2877
compositum_fix	26830
dbasis	621102
diag_denom	100542
diag_denomval	685895
ei_msqr_mod	352608
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	498
fnz	223462
gc_nf_to_Fq	14188737
gen_if_principal	35
get_LV	216897
get_coprimes	294
get_d	3213
get_g	356629
get_gamma	303537
get_maxord	813402
get_modpr	137753
get_module	63
get_norm	506042
get_nu	641476
get_partial_order_as_pols	509073
get_powers	161574
get_pr	416629
get_prid	939491
getprime	563791
hnf_Znproj	1084198
ideal_is1	8049
idealprimedec	1299783
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3930636
idealprimedec_limit_f	2818620
idealprimedec_limit_norm	505228
indexpartial	44096
init_m	4509567
init_norm	216872
is_uniformizer	506039
lift_to_zk	93671
loop	238774
manage_cache	706404
maxord	1538974
maxord_disc	711243
maxord_i	455098
minval	3776
mk_pr	4391174
modpr_TAU	4048418
modpr_genFq	4508
modprinit	1212718
mul_intersect	712269
mycaract	706465
newtoncharpoly	699613
newtonsums	706465
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20646
nfX_rem	16523
nfX_sub	4123
nfX_to_FqX	9373
nfX_to_monic	1680
nfXisintegral	7301
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922415
nf_to_Fq_i	14189249
nf_to_Fq_init	4047185
nfbasis	938
nfcompositum	13526
nfcompositum_lambda	511
nfdisc	66463
nfdiscfactors	644788
nfidealdet1	63
nfisintegral	31955
nfmaxord	102159
nfmaxord_check_args	813409
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8225
nfpolisintegral_i	8225
nfreducemodpr	210
ok_modpr	4913933
p_is_prime	2211
pol_min	118949
polcompositum0	12973
poldiscfactors	42
poldiscfactors_i	788781
pow_ei_mod_p	748495
pr_anti_uniformizer	1006011
pr_factorback	4263
pr_factorback_scal	4263
pradical	216896
primedec_aux	2825521
primedec_end	216897
progress	394623
redelt	48569
redelt_i	64398
rnfallbase	3164
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4151
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4067
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15050
setPE	746886
set_disc	813374
split_char	480687
sqr_mod	830667
testb2	67234
testc2	48569
to_ff_init	4081304
triv_order	1506
uniformizer	300020
update_den	3572006
update_fact	2438
update_phi	276595
vstar	624512
zk_to_Fq	6521426
zk_to_Fq_init	34096
zkmodprinit	175376
zx_z_div	1533268

Generated by: LCOV version 1.16