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 30582-6e9af8ee1d) Lines: 2228 2369 94.0 % Date: 2025-12-20 09:23:49 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	2474
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	5694
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	13013
nfcompositum	13567
safe_Z_pvalrem	15057
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26911
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44095
redelt	48562
testc2	48562
ZX_rescale_inv	59998
redelt_i	64396
nfdisc	66463
testb2	67289
ZpX_sylvester_echelon	74180
lift_to_zk	93673
diag_denom	100660
nfmaxord	102208
pol_min	118961
get_modpr	137753
get_powers	161587
nfV_to_FqV	167410
zkmodprinit	175397
ZpX_disc_val	184801
init_norm	216910
pradical	216938
get_LV	216941
primedec_end	216942
fnz	223505
loop	238893
Zlx_gcd	246414
ZpX_gcd	254930
Decomp	254931
update_phi	276651
compmod	287453
uniformizer	300072
get_gamma	303686
Fp_basis	312200
RgX_nffix	328331
ei_msqr_mod	353084
get_g	356786
progress	394757
get_pr	416697
ZpM_hnfmodid	454301
maxord_i	455204
split_char	480911
is_uniformizer	506101
get_norm	506105
idealprimedec_limit_norm	507441
QpXV_denom	509259
get_partial_order_as_pols	509265
getprime	563978
dbasis	621265
vstar	624709
get_nu	641711
nfdiscfactors	644770
diag_denomval	685895
newtoncharpoly	699867
manage_cache	706692
mycaract	706743
newtonsums	706744
maxord_disc	711222
mul_intersect	712361
setPE	746928
pow_ei_mod_p	748702
poldiscfactors_i	788760
set_disc	813385
get_maxord	813433
nfmaxord_check_args	813452
sqr_mod	831319
ZpX_reduced_resultant_fast	932464
get_prid	939687
Rg_nffix	962018
ZpX_reduced_resultant	993682
pr_anti_uniformizer	1006027
hnf_Znproj	1084251
modprinit	1212791
idealprimedec	1299828
zx_z_div	1533672
ZX_Dedekind	1539402
maxord	1539405
Flx_radical	1602042
Flx_checkdeflate	1602081
QpX_remove_denom	1744439
QpX_denom	2752443
idealprimedec_limit_f	2822633
primedec_aux	2829531
Fq_to_nf	3087520
update_den	3574157
ZpX_resultant_val	3583073
ZpX_resultant_val_i	3629225
idealprimedec_kummer	3936127
nf_to_Fq_init	4049489
modpr_TAU	4050743
to_ff_init	4083607
mk_pr	4396857
init_m	4515476
Zlx_sylvester_echelon	4803656
ok_modpr	4916421
zk_to_Fq	6521483
nf_to_Fq	12922446
gc_nf_to_Fq	14189082
nf_to_Fq_i	14189594
checkprid	18310284
checkprid_i	23548222

Generated by: LCOV version 1.16