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
Decomp	254931
Flx_checkdeflate	1602081
Flx_radical	1602042
FpX_radical	5694
Fp_basis	312200
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087520
QXQV_to_FpM	203
QpXV_denom	509259
QpX_denom	2752443
QpX_remove_denom	1744439
RgV_nffix	49
RgX_nffix	328331
RgX_to_algX	1666
Rg_nffix	962018
ZX_Dedekind	1539402
ZX_rescale_inv	59998
Z_fac	197
Zlx_gcd	246414
Zlx_sylvester_echelon	4803656
ZpM_hnfmodid	454301
ZpX_disc_val	184801
ZpX_gcd	254930
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993682
ZpX_reduced_resultant_fast	932464
ZpX_resultant_val	3583073
ZpX_resultant_val_i	3629225
ZpX_round4	896
ZpX_sylvester_echelon	74180
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18310284
checkprid_i	23548222
compmod	287453
compositum	91
compositum2	2877
compositum_fix	26911
dbasis	621265
diag_denom	100660
diag_denomval	685895
ei_msqr_mod	353084
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223505
gc_nf_to_Fq	14189082
gen_if_principal	35
get_LV	216941
get_coprimes	294
get_d	3220
get_g	356786
get_gamma	303686
get_maxord	813433
get_modpr	137753
get_module	63
get_norm	506105
get_nu	641711
get_partial_order_as_pols	509265
get_powers	161587
get_pr	416697
get_prid	939687
getprime	563978
hnf_Znproj	1084251
ideal_is1	8049
idealprimedec	1299828
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936127
idealprimedec_limit_f	2822633
idealprimedec_limit_norm	507441
indexpartial	44095
init_m	4515476
init_norm	216910
is_uniformizer	506101
lift_to_zk	93673
loop	238893
manage_cache	706692
maxord	1539405
maxord_disc	711222
maxord_i	455204
minval	3776
mk_pr	4396857
modpr_TAU	4050743
modpr_genFq	4508
modprinit	1212791
mul_intersect	712361
mycaract	706743
newtoncharpoly	699867
newtonsums	706744
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20667
nfX_rem	16523
nfX_sub	4144
nfX_to_FqX	9415
nfX_to_monic	1680
nfXisintegral	7329
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922446
nf_to_Fq_i	14189594
nf_to_Fq_init	4049489
nfbasis	938
nfcompositum	13567
nfcompositum_lambda	511
nfdisc	66463
nfdiscfactors	644770
nfidealdet1	63
nfisintegral	32235
nfmaxord	102208
nfmaxord_check_args	813452
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916421
p_is_prime	2211
pol_min	118961
polcompositum0	13013
poldiscfactors	42
poldiscfactors_i	788760
pow_ei_mod_p	748702
pr_anti_uniformizer	1006027
pr_factorback	4277
pr_factorback_scal	4277
pradical	216938
primedec_aux	2829531
primedec_end	216942
progress	394757
redelt	48562
redelt_i	64396
rnfallbase	3171
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4172
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4088
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15057
setPE	746928
set_disc	813385
split_char	480911
sqr_mod	831319
testb2	67289
testc2	48562
to_ff_init	4083607
triv_order	1513
uniformizer	300072
update_den	3574157
update_fact	2474
update_phi	276651
vstar	624709
zk_to_Fq	6521483
zk_to_Fq_init	34111
zkmodprinit	175397
zx_z_div	1533672

Generated by: LCOV version 1.16