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 30580-ef5a862e7f) Lines: 2228 2369 94.0 % Date: 2025-12-19 09:23:05 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	2473
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	5693
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	13016
nfcompositum	13569
safe_Z_pvalrem	15057
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26915
nfisintegral	32235
zk_to_Fq_init	34110
nf_pV_to_prV	38605
indexpartial	44096
redelt	48559
testc2	48559
ZX_rescale_inv	60000
redelt_i	64394
nfdisc	66462
testb2	67291
ZpX_sylvester_echelon	74178
lift_to_zk	93673
diag_denom	100655
nfmaxord	102219
pol_min	118962
get_modpr	137753
get_powers	161586
nfV_to_FqV	167410
zkmodprinit	175397
ZpX_disc_val	184798
init_norm	216910
get_LV	216933
primedec_end	216938
pradical	216939
fnz	223483
loop	238890
Zlx_gcd	246415
Decomp	254931
ZpX_gcd	254932
update_phi	276661
compmod	287457
uniformizer	300065
get_gamma	303700
Fp_basis	312207
RgX_nffix	328333
ei_msqr_mod	353109
get_g	356799
progress	394755
get_pr	416696
ZpM_hnfmodid	454305
maxord_i	455192
split_char	480914
is_uniformizer	506091
get_norm	506098
idealprimedec_limit_norm	507444
QpXV_denom	509271
get_partial_order_as_pols	509271
getprime	563968
dbasis	621258
vstar	624694
get_nu	641722
nfdiscfactors	644786
diag_denomval	685901
newtoncharpoly	699886
manage_cache	706686
mycaract	706744
newtonsums	706751
maxord_disc	711242
mul_intersect	712379
setPE	746949
pow_ei_mod_p	748712
poldiscfactors_i	788784
set_disc	813432
get_maxord	813463
nfmaxord_check_args	813469
sqr_mod	831354
ZpX_reduced_resultant_fast	932486
get_prid	939659
Rg_nffix	962029
ZpX_reduced_resultant	993720
pr_anti_uniformizer	1006036
hnf_Znproj	1084267
modprinit	1212799
idealprimedec	1299831
zx_z_div	1533667
ZX_Dedekind	1539411
maxord	1539412
Flx_radical	1602092
Flx_checkdeflate	1602109
QpX_remove_denom	1744452
QpX_denom	2752479
idealprimedec_limit_f	2822607
primedec_aux	2829535
Fq_to_nf	3087517
update_den	3574258
ZpX_resultant_val	3583080
ZpX_resultant_val_i	3629241
idealprimedec_kummer	3936158
nf_to_Fq_init	4049463
modpr_TAU	4050725
to_ff_init	4083597
mk_pr	4396805
init_m	4515509
Zlx_sylvester_echelon	4803699
ok_modpr	4916404
zk_to_Fq	6521594
nf_to_Fq	12922460
gc_nf_to_Fq	14189094
nf_to_Fq_i	14189617
checkprid	18310141
checkprid_i	23547985

Generated by: LCOV version 1.16