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 30558-88b7dc3357) Lines: 2228 2369 94.0 % Date: 2025-11-26 09:22:00 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	2212
update_fact	2438
compositum2	2877
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	4242
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5692
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	12977
nfcompositum	13530
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26833
nfisintegral	32235
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44094
redelt	48563
testc2	48563
ZX_rescale_inv	59987
redelt_i	64393
nfdisc	66464
testb2	67235
ZpX_sylvester_echelon	74168
lift_to_zk	93673
diag_denom	100528
nfmaxord	102169
pol_min	118958
get_modpr	137753
get_powers	161584
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184648
init_norm	216880
get_LV	216905
primedec_end	216907
pradical	216908
fnz	223473
loop	238759
Zlx_gcd	246306
Decomp	254825
ZpX_gcd	254826
update_phi	276610
compmod	287318
uniformizer	300037
get_gamma	303519
Fp_basis	312157
RgX_nffix	328286
ei_msqr_mod	352615
get_g	356612
progress	394612
get_pr	416649
ZpM_hnfmodid	454203
maxord_i	455094
split_char	480659
is_uniformizer	506072
get_norm	506078
idealprimedec_limit_norm	507443
QpXV_denom	509057
get_partial_order_as_pols	509059
getprime	563775
dbasis	621089
vstar	624498
get_nu	641469
nfdiscfactors	644781
diag_denomval	685892
newtoncharpoly	699595
manage_cache	706393
mycaract	706448
newtonsums	706457
maxord_disc	711238
mul_intersect	712293
setPE	746906
pow_ei_mod_p	748525
poldiscfactors_i	788777
set_disc	813381
get_maxord	813406
nfmaxord_check_args	813413
sqr_mod	830696
ZpX_reduced_resultant_fast	932291
get_prid	939659
Rg_nffix	962028
ZpX_reduced_resultant	993497
pr_anti_uniformizer	1006048
hnf_Znproj	1084233
modprinit	1212750
idealprimedec	1299822
zx_z_div	1533248
ZX_Dedekind	1538956
maxord	1538957
Flx_radical	1601655
Flx_checkdeflate	1601657
QpX_remove_denom	1743751
QpX_denom	2751186
idealprimedec_limit_f	2821948
primedec_aux	2828849
Fq_to_nf	3087505
update_den	3571867
ZpX_resultant_val	3581318
ZpX_resultant_val_i	3627457
idealprimedec_kummer	3934727
nf_to_Fq_init	4049455
modpr_TAU	4050675
to_ff_init	4083558
mk_pr	4395289
init_m	4513545
Zlx_sylvester_echelon	4801654
ok_modpr	4916359
zk_to_Fq	6521455
nf_to_Fq	12922345
gc_nf_to_Fq	14188972
nf_to_Fq_i	14189489
checkprid	18074579
checkprid_i	23311748

Generated by: LCOV version 1.16