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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 94.0 % 2369 2227 Test Date: 2026-07-23 17:04:59 Functions: 97.8 % 178 174 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	210
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	2292
update_fact	2355
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	5697
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	12908
nfcompositum	13461
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26698
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44126
redelt	48702
testc2	48702
ZX_rescale_inv	59952
redelt_i	64666
testb2	67416
nfdisc	68901
ZpX_sylvester_echelon	74449
lift_to_zk	93325
diag_denom	100813
nfmaxord	102530
pol_min	118741
get_modpr	137753
get_powers	161193
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	185054
get_LV	216656
init_norm	216656
pradical	216656
primedec_end	216656
fnz	224693
loop	239043
Zlx_gcd	246519
Decomp	255254
ZpX_gcd	255254
update_phi	277033
compmod	287745
uniformizer	299589
get_gamma	304149
Fp_basis	311943
RgX_nffix	329976
ei_msqr_mod	352490
get_g	357218
progress	394988
get_pr	416284
ZpM_hnfmodid	455050
maxord_i	455946
split_char	481769
get_norm	505223
is_uniformizer	505223
idealprimedec_limit_norm	509474
QpXV_denom	509906
get_partial_order_as_pols	509906
getprime	564749
dbasis	621497
vstar	625431
get_nu	642684
nfdiscfactors	644798
diag_denomval	686746
newtoncharpoly	701229
manage_cache	708014
mycaract	708014
newtonsums	708014
mul_intersect	711843
maxord_disc	713692
setPE	747321
pow_ei_mod_p	748050
poldiscfactors_i	791395
get_maxord	816222
nfmaxord_check_args	816222
set_disc	816222
sqr_mod	830756
ZpX_reduced_resultant_fast	933998
get_prid	940002
Rg_nffix	969544
ZpX_reduced_resultant	995793
pr_anti_uniformizer	1005886
hnf_Znproj	1084728
modprinit	1212622
idealprimedec	1300131
zx_z_div	1535985
ZX_Dedekind	1541682
maxord	1541682
Flx_checkdeflate	1604583
Flx_radical	1604583
QpX_remove_denom	1747228
QpX_denom	2770381
idealprimedec_limit_f	2824800
primedec_aux	2831772
Fq_to_nf	3087513
update_den	3583684
ZpX_resultant_val	3585712
ZpX_resultant_val_i	3632138
idealprimedec_kummer	3938728
nf_to_Fq_init	4049467
modpr_TAU	4050650
to_ff_init	4083578
mk_pr	4398853
init_m	4519710
Zlx_sylvester_echelon	4808736
ok_modpr	4916921
zk_to_Fq	6521292
nf_to_Fq	12922213
gc_nf_to_Fq	14188834
nf_to_Fq_i	14189338
checkprid	18388261
checkprid_i	23629249

Generated by: LCOV version 2.0-1