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: 2025-12-07 09:22:06 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	2211
update_fact	2438
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	12983
nfcompositum	13536
safe_Z_pvalrem	15092
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26843
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44096
redelt	48565
testc2	48565
ZX_rescale_inv	59981
redelt_i	64392
nfdisc	66464
testb2	67242
ZpX_sylvester_echelon	74183
lift_to_zk	93669
diag_denom	100591
nfmaxord	102197
pol_min	118992
get_modpr	137753
get_powers	161618
nfV_to_FqV	167410
zkmodprinit	175411
ZpX_disc_val	184677
init_norm	216944
primedec_end	216976
get_LV	216977
pradical	216978
fnz	223572
loop	238776
Zlx_gcd	246323
Decomp	254843
ZpX_gcd	254844
update_phi	276646
compmod	287337
uniformizer	300136
get_gamma	303538
Fp_basis	312312
RgX_nffix	328295
ei_msqr_mod	353057
get_g	356631
progress	394640
get_pr	416806
ZpM_hnfmodid	454224
maxord_i	455119
split_char	480702
is_uniformizer	506165
get_norm	506172
idealprimedec_limit_norm	507440
get_partial_order_as_pols	509090
QpXV_denom	509092
getprime	563815
dbasis	621154
vstar	624523
get_nu	641536
nfdiscfactors	644776
diag_denomval	685903
newtoncharpoly	699671
manage_cache	706479
mycaract	706524
newtonsums	706535
maxord_disc	711229
mul_intersect	712631
setPE	746922
pow_ei_mod_p	748803
poldiscfactors_i	788777
set_disc	813370
get_maxord	813413
nfmaxord_check_args	813432
sqr_mod	831387
ZpX_reduced_resultant_fast	932336
get_prid	939659
Rg_nffix	962067
ZpX_reduced_resultant	993554
pr_anti_uniformizer	1006047
hnf_Znproj	1084265
modprinit	1212803
idealprimedec	1299849
zx_z_div	1533334
maxord	1539090
ZX_Dedekind	1539091
Flx_radical	1601708
Flx_checkdeflate	1601734
QpX_remove_denom	1743884
QpX_denom	2751366
idealprimedec_limit_f	2822739
primedec_aux	2829642
Fq_to_nf	3087519
update_den	3572150
ZpX_resultant_val	3582989
ZpX_resultant_val_i	3629114
idealprimedec_kummer	3936322
nf_to_Fq_init	4049478
modpr_TAU	4050752
to_ff_init	4083604
mk_pr	4396988
init_m	4515266
Zlx_sylvester_echelon	4803359
ok_modpr	4916412
zk_to_Fq	6521716
nf_to_Fq	12922460
gc_nf_to_Fq	14189092
nf_to_Fq_i	14189615
checkprid	18313193
checkprid_i	23551239

Generated by: LCOV version 1.16