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 30550-07450a7a86) Lines: 2228 2369 94.0 % Date: 2025-11-18 09:22:37 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	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	12974
nfcompositum	13528
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26830
nfisintegral	32235
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44095
redelt	48568
testc2	48568
ZX_rescale_inv	59988
redelt_i	64391
nfdisc	66464
testb2	67241
ZpX_sylvester_echelon	74171
lift_to_zk	93673
diag_denom	100533
nfmaxord	102171
pol_min	118954
get_modpr	137753
get_powers	161579
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184658
init_norm	216877
pradical	216898
get_LV	216899
primedec_end	216901
fnz	223456
loop	238772
Zlx_gcd	246314
Decomp	254834
ZpX_gcd	254836
update_phi	276620
compmod	287342
uniformizer	300025
get_gamma	303536
Fp_basis	312152
RgX_nffix	328279
ei_msqr_mod	352605
get_g	356628
progress	394626
get_pr	416640
ZpM_hnfmodid	454213
maxord_i	455109
split_char	480668
is_uniformizer	506026
get_norm	506032
idealprimedec_limit_norm	507444
QpXV_denom	509066
get_partial_order_as_pols	509069
getprime	563781
dbasis	621096
vstar	624506
get_nu	641470
nfdiscfactors	644767
diag_denomval	685899
newtoncharpoly	699596
manage_cache	706427
mycaract	706476
newtonsums	706481
maxord_disc	711213
mul_intersect	712286
setPE	746893
pow_ei_mod_p	748507
poldiscfactors_i	788777
set_disc	813373
get_maxord	813389
nfmaxord_check_args	813397
sqr_mod	830671
ZpX_reduced_resultant_fast	932303
get_prid	939659
Rg_nffix	962007
ZpX_reduced_resultant	993511
pr_anti_uniformizer	1006033
hnf_Znproj	1084226
modprinit	1212744
idealprimedec	1299803
zx_z_div	1533285
ZX_Dedekind	1538975
maxord	1538976
Flx_radical	1601670
Flx_checkdeflate	1601699
QpX_remove_denom	1743824
QpX_denom	2751267
idealprimedec_limit_f	2821937
primedec_aux	2828847
Fq_to_nf	3087505
update_den	3572004
ZpX_resultant_val	3581325
ZpX_resultant_val_i	3627467
idealprimedec_kummer	3934674
nf_to_Fq_init	4049425
modpr_TAU	4050689
to_ff_init	4083544
mk_pr	4395261
init_m	4513567
Zlx_sylvester_echelon	4801665
ok_modpr	4916343
zk_to_Fq	6521445
nf_to_Fq	12922405
gc_nf_to_Fq	14189033
nf_to_Fq_i	14189542
checkprid	18074321
checkprid_i	23311494

Generated by: LCOV version 1.16