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 30549-267e77144f) Lines: 2228 2369 94.0 % Date: 2025-11-16 09:22:34 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	1506
RgX_to_algX	1666
nfX_to_monic	1680
nfM_to_FqM	1872
rnfjoinmodules_i	2111
p_is_prime	2210
update_fact	2439
compositum2	2877
FqM_to_nfM	2934
rnfallbase	3164
get_d	3213
minval	3776
rnfmaxord	4067
ffdegree	4109
nfX_sub	4123
rnfdedekind_i	4151
_msqr	4158
fill	4222
fact_from_factors	4242
pr_factorback	4263
pr_factorback_scal	4263
modpr_genFq	4508
FpX_radical	5692
rnfeltid_powmod	5834
idealprimedec_galois	6552
nfXisintegral	7301
ideal_is1	8049
nfpolisintegral	8225
nfpolisintegral_i	8225
nfX_to_FqX	9373
FqX_to_nfX	10184
polcompositum0	12974
nfcompositum	13527
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20646
nf_pV_to_prVV	26614
compositum_fix	26829
nfisintegral	31955
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44096
redelt	48567
testc2	48568
ZX_rescale_inv	59980
redelt_i	64398
nfdisc	66463
testb2	67237
ZpX_sylvester_echelon	74052
lift_to_zk	93673
diag_denom	100530
nfmaxord	102156
pol_min	118950
get_modpr	137753
get_powers	161576
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184660
init_norm	216880
pradical	216900
get_LV	216901
primedec_end	216901
fnz	223459
loop	238772
Zlx_gcd	246311
Decomp	254829
ZpX_gcd	254835
update_phi	276630
compmod	287339
uniformizer	300025
get_gamma	303532
Fp_basis	312145
RgX_nffix	328264
ei_msqr_mod	352598
get_g	356619
progress	394635
get_pr	416639
ZpM_hnfmodid	454208
maxord_i	455096
split_char	480671
get_norm	506059
is_uniformizer	506059
idealprimedec_limit_norm	507445
get_partial_order_as_pols	509064
QpXV_denom	509070
getprime	563812
dbasis	621098
vstar	624522
get_nu	641493
nfdiscfactors	644773
diag_denomval	685898
newtoncharpoly	699624
manage_cache	706433
mycaract	706492
newtonsums	706498
maxord_disc	711225
mul_intersect	712269
setPE	746898
pow_ei_mod_p	748508
poldiscfactors_i	788804
set_disc	813365
get_maxord	813388
nfmaxord_check_args	813399
sqr_mod	830672
ZpX_reduced_resultant_fast	932298
get_prid	939659
Rg_nffix	961863
ZpX_reduced_resultant	993523
pr_anti_uniformizer	1006020
hnf_Znproj	1084209
modprinit	1212742
idealprimedec	1299831
zx_z_div	1533249
ZX_Dedekind	1538978
maxord	1538981
Flx_radical	1601677
Flx_checkdeflate	1601695
QpX_remove_denom	1743860
QpX_denom	2751310
idealprimedec_limit_f	2821895
primedec_aux	2828819
Fq_to_nf	3087274
update_den	3572156
ZpX_resultant_val	3581075
ZpX_resultant_val_i	3627239
idealprimedec_kummer	3934422
nf_to_Fq_init	4049396
modpr_TAU	4050642
to_ff_init	4083505
mk_pr	4395043
init_m	4513317
Zlx_sylvester_echelon	4801572
ok_modpr	4916305
zk_to_Fq	6521400
nf_to_Fq	12922444
gc_nf_to_Fq	14188789
nf_to_Fq_i	14189295
checkprid	18074224
checkprid_i	23311447

Generated by: LCOV version 1.16