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 30589-01bb95f8b7) Lines: 2228 2369 94.0 % Date: 2025-12-30 09:21:31 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	2354
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	12887
nfcompositum	13440
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26661
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44082
redelt	48559
testc2	48559
ZX_rescale_inv	59940
redelt_i	64354
nfdisc	66464
testb2	67183
ZpX_sylvester_echelon	74159
lift_to_zk	93670
diag_denom	100218
nfmaxord	101974
pol_min	118926
get_modpr	137753
get_powers	161551
nfV_to_FqV	167410
zkmodprinit	175362
ZpX_disc_val	184480
init_norm	216844
pradical	216876
primedec_end	216880
get_LV	216881
fnz	222751
loop	238605
Zlx_gcd	246174
ZpX_gcd	254682
Decomp	254684
update_phi	276525
compmod	287162
uniformizer	299971
get_gamma	303293
Fp_basis	312069
RgX_nffix	328099
ei_msqr_mod	352799
get_g	356373
progress	394407
get_pr	416562
ZpM_hnfmodid	453995
maxord_i	454897
split_char	480347
is_uniformizer	505919
get_norm	505929
idealprimedec_limit_norm	507441
QpXV_denom	508756
get_partial_order_as_pols	508763
getprime	563493
dbasis	620751
vstar	624162
get_nu	641124
nfdiscfactors	644767
diag_denomval	685898
newtoncharpoly	699234
manage_cache	706024
mycaract	706069
newtonsums	706076
maxord_disc	711211
mul_intersect	712089
setPE	746689
pow_ei_mod_p	748326
poldiscfactors_i	788781
set_disc	813145
get_maxord	813190
nfmaxord_check_args	813198
sqr_mod	830864
ZpX_reduced_resultant_fast	931905
get_prid	939477
Rg_nffix	960417
ZpX_reduced_resultant	993059
pr_anti_uniformizer	1005830
hnf_Znproj	1083967
modprinit	1212538
idealprimedec	1299671
zx_z_div	1532469
ZX_Dedekind	1538209
maxord	1538211
Flx_radical	1600856
Flx_checkdeflate	1600890
QpX_remove_denom	1742833
QpX_denom	2749418
idealprimedec_limit_f	2822330
primedec_aux	2829238
Fq_to_nf	3087513
update_den	3569482
ZpX_resultant_val	3582012
ZpX_resultant_val_i	3628133
idealprimedec_kummer	3935719
nf_to_Fq_init	4049240
modpr_TAU	4050406
to_ff_init	4083368
mk_pr	4396215
init_m	4513845
Zlx_sylvester_echelon	4801735
ok_modpr	4916188
zk_to_Fq	6521519
nf_to_Fq	12922035
gc_nf_to_Fq	14188666
nf_to_Fq_i	14189180
checkprid	18309437
checkprid_i	23546592

Generated by: LCOV version 1.16