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 30711-c92306d4b4) Lines: 2227 2369 94.0 % Date: 2026-02-24 09:25:14 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	12892
nfcompositum	13445
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
testc2	48562
redelt	48563
ZX_rescale_inv	59940
redelt_i	64355
nfdisc	66463
testb2	67174
ZpX_sylvester_echelon	74152
lift_to_zk	93673
diag_denom	100223
nfmaxord	101954
pol_min	118924
get_modpr	137753
get_powers	161550
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	184479
init_norm	216870
get_LV	216881
primedec_end	216882
pradical	216883
fnz	222824
loop	238600
Zlx_gcd	246178
ZpX_gcd	254681
Decomp	254683
update_phi	276500
compmod	287161
uniformizer	299972
get_gamma	303281
Fp_basis	312069
RgX_nffix	328098
ei_msqr_mod	352798
get_g	356364
progress	394406
get_pr	416567
ZpM_hnfmodid	453994
maxord_i	454889
split_char	480300
is_uniformizer	505939
get_norm	505941
idealprimedec_limit_norm	507447
QpXV_denom	508766
get_partial_order_as_pols	508769
getprime	563468
dbasis	620766
vstar	624144
get_nu	641060
nfdiscfactors	644777
diag_denomval	685919
newtoncharpoly	699204
manage_cache	705960
mycaract	705992
newtonsums	706006
maxord_disc	711233
mul_intersect	712089
setPE	746732
pow_ei_mod_p	748335
poldiscfactors_i	788808
get_maxord	813185
set_disc	813194
nfmaxord_check_args	813201
sqr_mod	830862
ZpX_reduced_resultant_fast	931894
get_prid	939491
Rg_nffix	960414
ZpX_reduced_resultant	993021
pr_anti_uniformizer	1005837
hnf_Znproj	1083989
modprinit	1212529
idealprimedec	1299707
zx_z_div	1532505
ZX_Dedekind	1538239
maxord	1538239
Flx_checkdeflate	1600944
Flx_radical	1600948
QpX_remove_denom	1742734
QpX_denom	2749338
idealprimedec_limit_f	2822426
primedec_aux	2829341
Fq_to_nf	3087512
update_den	3569463
ZpX_resultant_val	3581983
ZpX_resultant_val_i	3628156
idealprimedec_kummer	3935791
nf_to_Fq_init	4049275
modpr_TAU	4050468
to_ff_init	4083400
mk_pr	4396398
init_m	4513886
Zlx_sylvester_echelon	4801731
ok_modpr	4916225
zk_to_Fq	6521154
nf_to_Fq	12922060
gc_nf_to_Fq	14188686
nf_to_Fq_i	14189208
checkprid	18382992
checkprid_i	23621167

Generated by: LCOV version 1.16