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 30735-65f72320ad) Lines: 2227 2369 94.0 % Date: 2026-03-11 09:24:10 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254736
Flx_checkdeflate	1602346
Flx_radical	1602338
FpX_radical	5693
Fp_basis	312099
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	508869
QpX_denom	2749760
QpX_remove_denom	1742994
RgV_nffix	49
RgX_nffix	327958
RgX_to_algX	1666
Rg_nffix	960554
ZX_Dedekind	1539626
ZX_rescale_inv	59981
Z_fac	197
Zlx_gcd	246232
Zlx_sylvester_echelon	4802609
ZpM_hnfmodid	454062
ZpX_disc_val	184519
ZpX_gcd	254736
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993221
ZpX_reduced_resultant_fast	932099
ZpX_resultant_val	3582616
ZpX_resultant_val_i	3628720
ZpX_round4	896
ZpX_sylvester_echelon	74159
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18388057
checkprid_i	23626327
compmod	287180
compositum	91
compositum2	2870
compositum_fix	26673
dbasis	620937
diag_denom	100215
diag_denomval	686762
ei_msqr_mod	352913
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222785
gc_nf_to_Fq	14188645
gen_if_principal	35
get_LV	216880
get_coprimes	294
get_d	3220
get_g	356412
get_gamma	303296
get_maxord	815698
get_modpr	137753
get_module	63
get_norm	505963
get_nu	641247
get_partial_order_as_pols	508873
get_powers	161551
get_pr	416584
get_prid	939491
getprime	563581
hnf_Znproj	1083967
ideal_is1	8049
idealprimedec	1299754
idealprimedec_degrees	371
idealprimedec_galois	6601
idealprimedec_kummer	3936434
idealprimedec_limit_f	2822543
idealprimedec_limit_norm	507443
indexpartial	44108
init_m	4514671
init_norm	216858
is_uniformizer	505961
lift_to_zk	93673
loop	238630
manage_cache	706099
maxord	1539627
maxord_disc	713682
maxord_i	454961
minval	3776
mk_pr	4397004
modpr_TAU	4050452
modpr_genFq	4508
modprinit	1212565
mul_intersect	712167
mycaract	706141
newtoncharpoly	699333
newtonsums	706148
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	12922028
nf_to_Fq_i	14189158
nf_to_Fq_init	4049241
nfbasis	938
nfcompositum	13448
nfcompositum_lambda	511
nfdisc	68901
nfdiscfactors	644788
nfidealdet1	63
nfisintegral	32235
nfmaxord	102017
nfmaxord_check_args	815707
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916183
p_is_prime	2204
pol_min	118928
polcompositum0	12895
poldiscfactors	42
poldiscfactors_i	791310
pow_ei_mod_p	748359
pr_anti_uniformizer	1005839
pr_factorback	4277
pr_factorback_scal	4277
pradical	216878
primedec_aux	2829507
primedec_end	216880
progress	394437
redelt	48555
redelt_i	64350
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	746800
set_disc	815680
split_char	480361
sqr_mod	831012
testb2	67189
testc2	48555
to_ff_init	4083358
triv_order	1513
uniformizer	299980
update_den	3570127
update_fact	2357
update_phi	276628
vstar	624294
zk_to_Fq	6521123
zk_to_Fq_init	34110
zkmodprinit	175369
zx_z_div	1533895

Generated by: LCOV version 1.16