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 30584-b9873745ba) Lines: 2228 2369 94.0 % Date: 2025-12-21 09:21:02 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	2355
compositum2	2870
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	4235
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	12890
nfcompositum	13443
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26659
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44082
redelt	48563
testc2	48564
ZX_rescale_inv	59938
redelt_i	64363
nfdisc	66465
testb2	67174
ZpX_sylvester_echelon	74152
lift_to_zk	93673
diag_denom	100208
nfmaxord	101969
pol_min	118929
get_modpr	137753
get_powers	161555
nfV_to_FqV	167410
zkmodprinit	175362
ZpX_disc_val	184476
init_norm	216859
pradical	216872
get_LV	216878
primedec_end	216878
fnz	222757
loop	238607
Zlx_gcd	246174
ZpX_gcd	254680
Decomp	254681
update_phi	276512
compmod	287168
uniformizer	299969
get_gamma	303289
Fp_basis	312073
RgX_nffix	328103
ei_msqr_mod	352802
get_g	356366
progress	394412
get_pr	416560
ZpM_hnfmodid	453997
maxord_i	454889
split_char	480344
is_uniformizer	505905
get_norm	505909
idealprimedec_limit_norm	507442
QpXV_denom	508751
get_partial_order_as_pols	508758
getprime	563489
dbasis	620754
vstar	624162
get_nu	641117
nfdiscfactors	644781
diag_denomval	685880
newtoncharpoly	699229
manage_cache	706008
mycaract	706045
newtonsums	706056
maxord_disc	711233
mul_intersect	712101
setPE	746678
pow_ei_mod_p	748319
poldiscfactors_i	788758
set_disc	813171
get_maxord	813205
nfmaxord_check_args	813215
sqr_mod	830861
ZpX_reduced_resultant_fast	931894
get_prid	939687
Rg_nffix	960426
ZpX_reduced_resultant	993033
pr_anti_uniformizer	1005951
hnf_Znproj	1084090
modprinit	1212755
idealprimedec	1299794
zx_z_div	1532460
ZX_Dedekind	1538195
maxord	1538197
Flx_radical	1600832
Flx_checkdeflate	1600837
QpX_remove_denom	1742821
QpX_denom	2749372
idealprimedec_limit_f	2822497
primedec_aux	2829407
Fq_to_nf	3087513
update_den	3569394
ZpX_resultant_val	3582149
ZpX_resultant_val_i	3628285
idealprimedec_kummer	3935928
nf_to_Fq_init	4049471
modpr_TAU	4050700
to_ff_init	4083594
mk_pr	4396314
init_m	4513984
Zlx_sylvester_echelon	4801816
ok_modpr	4916397
zk_to_Fq	6521429
nf_to_Fq	12922425
gc_nf_to_Fq	14189060
nf_to_Fq_i	14189573
checkprid	18309722
checkprid_i	23547565

Generated by: LCOV version 1.16