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 30674-be81ecfdd4) Lines: 2227 2369 94.0 % Date: 2026-02-10 09:23:17 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254683
Flx_checkdeflate	1600947
Flx_radical	1600954
FpX_radical	5693
Fp_basis	312081
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087513
QXQV_to_FpM	203
QpXV_denom	508770
QpX_denom	2749449
QpX_remove_denom	1742835
RgV_nffix	49
RgX_nffix	328102
RgX_to_algX	1666
Rg_nffix	960426
ZX_Dedekind	1538222
ZX_rescale_inv	59930
Z_fac	197
Zlx_gcd	246175
Zlx_sylvester_echelon	4801746
ZpM_hnfmodid	454003
ZpX_disc_val	184479
ZpX_gcd	254684
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993031
ZpX_reduced_resultant_fast	931918
ZpX_resultant_val	3582028
ZpX_resultant_val_i	3628135
ZpX_round4	896
ZpX_sylvester_echelon	74159
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18382692
checkprid_i	23620839
compmod	287164
compositum	91
compositum2	2870
compositum_fix	26654
dbasis	620759
diag_denom	100216
diag_denomval	685902
ei_msqr_mod	352808
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222747
gc_nf_to_Fq	14188679
gen_if_principal	35
get_LV	216889
get_coprimes	294
get_d	3220
get_g	356380
get_gamma	303309
get_maxord	813221
get_modpr	137753
get_module	63
get_norm	505928
get_nu	641103
get_partial_order_as_pols	508770
get_powers	161560
get_pr	416580
get_prid	939477
getprime	563468
hnf_Znproj	1083964
ideal_is1	8049
idealprimedec	1299698
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3935815
idealprimedec_limit_f	2822416
idealprimedec_limit_norm	507437
indexpartial	44080
init_m	4513905
init_norm	216859
is_uniformizer	505954
lift_to_zk	93673
loop	238605
manage_cache	706020
maxord	1538221
maxord_disc	711243
maxord_i	454893
minval	3776
mk_pr	4396344
modpr_TAU	4050462
modpr_genFq	4508
modprinit	1212553
mul_intersect	712117
mycaract	706055
newtoncharpoly	699245
newtonsums	706063
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	12922048
nf_to_Fq_i	14189200
nf_to_Fq_init	4049246
nfbasis	938
nfcompositum	13443
nfcompositum_lambda	511
nfdisc	66463
nfdiscfactors	644787
nfidealdet1	63
nfisintegral	32235
nfmaxord	101980
nfmaxord_check_args	813230
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916189
p_is_prime	2210
pol_min	118935
polcompositum0	12890
poldiscfactors	42
poldiscfactors_i	788811
pow_ei_mod_p	748341
pr_anti_uniformizer	1005843
pr_factorback	4277
pr_factorback_scal	4277
pradical	216884
primedec_aux	2829326
primedec_end	216890
progress	394406
redelt	48560
redelt_i	64353
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	15029
setPE	746748
set_disc	813213
split_char	480342
sqr_mod	830881
testb2	67183
testc2	48560
to_ff_init	4083369
triv_order	1513
uniformizer	299988
update_den	3569601
update_fact	2355
update_phi	276504
vstar	624139
zk_to_Fq	6521120
zk_to_Fq_init	34110
zkmodprinit	175369
zx_z_div	1532529

Generated by: LCOV version 1.16