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 30831-19b50a36d0) Lines: 2227 2369 94.0 % Date: 2026-04-23 09:26:12 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	2206
update_fact	2357
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	6601
nfXisintegral	7329
ideal_is1	8049
nfpolisintegral	8253
nfpolisintegral_i	8253
nfX_to_FqX	9415
FqX_to_nfX	10226
polcompositum0	12894
nfcompositum	13447
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26671
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44110
redelt	48551
testc2	48552
ZX_rescale_inv	59985
redelt_i	64350
testb2	67187
nfdisc	68899
ZpX_sylvester_echelon	74159
lift_to_zk	93673
diag_denom	100214
nfmaxord	102029
pol_min	118915
get_modpr	137753
get_powers	161540
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	184511
init_norm	216846
primedec_end	216871
get_LV	216873
pradical	216873
fnz	222764
loop	238625
Zlx_gcd	246228
ZpX_gcd	254734
Decomp	254736
update_phi	276584
compmod	287181
uniformizer	299963
get_gamma	303291
Fp_basis	312079
RgX_nffix	327958
ei_msqr_mod	352892
get_g	356408
progress	394426
get_pr	416567
ZpM_hnfmodid	454057
maxord_i	454950
split_char	480366
is_uniformizer	505906
get_norm	505911
idealprimedec_limit_norm	507442
QpXV_denom	508869
get_partial_order_as_pols	508874
getprime	563530
dbasis	620923
vstar	624252
get_nu	641205
nfdiscfactors	644768
diag_denomval	686750
newtoncharpoly	699281
manage_cache	706056
newtonsums	706109
mycaract	706110
mul_intersect	712119
maxord_disc	713655
setPE	746761
pow_ei_mod_p	748341
poldiscfactors_i	791256
set_disc	815657
get_maxord	815683
nfmaxord_check_args	815692
sqr_mod	830969
ZpX_reduced_resultant_fast	932045
get_prid	939988
Rg_nffix	960554
ZpX_reduced_resultant	993154
pr_anti_uniformizer	1005817
hnf_Znproj	1083962
modprinit	1212538
idealprimedec	1299764
zx_z_div	1533856
ZX_Dedekind	1539590
maxord	1539592
Flx_radical	1602211
Flx_checkdeflate	1602243
QpX_remove_denom	1742935
QpX_denom	2749683
idealprimedec_limit_f	2822539
primedec_aux	2829482
Fq_to_nf	3087512
update_den	3569880
ZpX_resultant_val	3582534
ZpX_resultant_val_i	3628714
idealprimedec_kummer	3936332
nf_to_Fq_init	4049230
modpr_TAU	4050465
to_ff_init	4083340
mk_pr	4396831
init_m	4514518
Zlx_sylvester_echelon	4802434
ok_modpr	4916662
zk_to_Fq	6521110
nf_to_Fq	12922036
gc_nf_to_Fq	14188653
nf_to_Fq_i	14189166
checkprid	18387563
checkprid_i	23626440

Generated by: LCOV version 1.16