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 30572-91e0396466) Lines: 2228 2369 94.0 % Date: 2025-12-12 09:22:23 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254842
Flx_checkdeflate	1601769
Flx_radical	1601733
FpX_radical	5693
Fp_basis	312325
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087520
QXQV_to_FpM	203
QpXV_denom	509086
QpX_denom	2751317
QpX_remove_denom	1743816
RgV_nffix	49
RgX_nffix	328294
RgX_to_algX	1666
Rg_nffix	962066
ZX_Dedekind	1539093
ZX_rescale_inv	59977
Z_fac	197
Zlx_gcd	246324
Zlx_sylvester_echelon	4803298
ZpM_hnfmodid	454220
ZpX_disc_val	184671
ZpX_gcd	254843
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993473
ZpX_reduced_resultant_fast	932279
ZpX_resultant_val	3582973
ZpX_resultant_val_i	3629106
ZpX_round4	896
ZpX_sylvester_echelon	74183
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18313529
checkprid_i	23551671
compmod	287332
compositum	91
compositum2	2884
compositum_fix	26841
dbasis	621163
diag_denom	100594
diag_denomval	685903
ei_msqr_mod	353068
errprime	0
expo_is_squarefree	889
fact_from_factors	4249
ffdegree	4109
fill	4222
fix_PE	512
fnz	223568
gc_nf_to_Fq	14189086
gen_if_principal	35
get_LV	216981
get_coprimes	294
get_d	3220
get_g	356630
get_gamma	303547
get_maxord	813435
get_modpr	137753
get_module	63
get_norm	506166
get_nu	641474
get_partial_order_as_pols	509089
get_powers	161622
get_pr	416814
get_prid	939659
getprime	563775
hnf_Znproj	1084263
ideal_is1	8049
idealprimedec	1299874
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936391
idealprimedec_limit_f	2822753
idealprimedec_limit_norm	507445
indexpartial	44095
init_m	4515181
init_norm	216956
is_uniformizer	506163
lift_to_zk	93673
loop	238773
manage_cache	706418
maxord	1539095
maxord_disc	711237
maxord_i	455106
minval	3776
mk_pr	4397060
modpr_TAU	4050725
modpr_genFq	4508
modprinit	1212815
mul_intersect	712658
mycaract	706463
newtoncharpoly	699615
newtonsums	706474
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	12922460
nf_to_Fq_i	14189600
nf_to_Fq_init	4049473
nfbasis	938
nfcompositum	13535
nfcompositum_lambda	511
nfdisc	66465
nfdiscfactors	644779
nfidealdet1	63
nfisintegral	32235
nfmaxord	102203
nfmaxord_check_args	813443
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916396
p_is_prime	2212
pol_min	118996
polcompositum0	12982
poldiscfactors	42
poldiscfactors_i	788795
pow_ei_mod_p	748805
pr_anti_uniformizer	1006036
pr_factorback	4277
pr_factorback_scal	4277
pradical	216976
primedec_aux	2829687
primedec_end	216981
progress	394624
redelt	48562
redelt_i	64388
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	15092
setPE	746930
set_disc	813406
split_char	480682
sqr_mod	831397
testb2	67242
testc2	48562
to_ff_init	4083599
triv_order	1513
uniformizer	300147
update_den	3571959
update_fact	2439
update_phi	276593
vstar	624488
zk_to_Fq	6521722
zk_to_Fq_init	34111
zkmodprinit	175411
zx_z_div	1533354

Generated by: LCOV version 1.16