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 30551-f8501633d1) Lines: 2228 2369 94.0 % Date: 2025-11-20 09:22:21 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	12973
nfcompositum	13526
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26824
nfisintegral	32235
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44093
testc2	48568
redelt	48569
ZX_rescale_inv	59987
redelt_i	64399
nfdisc	66465
testb2	67236
ZpX_sylvester_echelon	74180
lift_to_zk	93671
diag_denom	100534
nfmaxord	102171
pol_min	118954
get_modpr	137753
get_powers	161580
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184656
init_norm	216873
pradical	216901
primedec_end	216903
get_LV	216904
fnz	223473
loop	238778
Zlx_gcd	246314
ZpX_gcd	254838
Decomp	254839
update_phi	276593
compmod	287347
uniformizer	300026
get_gamma	303541
Fp_basis	312141
RgX_nffix	328285
ei_msqr_mod	352581
get_g	356632
progress	394637
get_pr	416632
ZpM_hnfmodid	454205
maxord_i	455104
split_char	480688
is_uniformizer	506063
get_norm	506070
idealprimedec_limit_norm	507446
QpXV_denom	509080
get_partial_order_as_pols	509080
getprime	563785
dbasis	621105
vstar	624496
get_nu	641470
nfdiscfactors	644776
diag_denomval	685901
newtoncharpoly	699593
manage_cache	706411
newtonsums	706468
mycaract	706471
maxord_disc	711234
mul_intersect	712250
setPE	746926
pow_ei_mod_p	748508
poldiscfactors_i	788785
set_disc	813389
get_maxord	813404
nfmaxord_check_args	813415
sqr_mod	830642
ZpX_reduced_resultant_fast	932286
get_prid	939659
Rg_nffix	962025
ZpX_reduced_resultant	993498
pr_anti_uniformizer	1006031
hnf_Znproj	1084226
modprinit	1212755
idealprimedec	1299819
zx_z_div	1533281
ZX_Dedekind	1538985
maxord	1538986
Flx_radical	1601700
Flx_checkdeflate	1601704
QpX_remove_denom	1743838
QpX_denom	2751320
idealprimedec_limit_f	2821938
primedec_aux	2828851
Fq_to_nf	3087506
update_den	3572132
ZpX_resultant_val	3581347
ZpX_resultant_val_i	3627535
idealprimedec_kummer	3934678
nf_to_Fq_init	4049457
modpr_TAU	4050700
to_ff_init	4083555
mk_pr	4395312
init_m	4513567
Zlx_sylvester_echelon	4801724
ok_modpr	4916356
zk_to_Fq	6521469
nf_to_Fq	12922387
gc_nf_to_Fq	14189026
nf_to_Fq_i	14189541
checkprid	18074209
checkprid_i	23311440

Generated by: LCOV version 1.16