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
Decomp	254931
Flx_checkdeflate	1602109
Flx_radical	1602092
FpX_radical	5693
Fp_basis	312207
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087517
QXQV_to_FpM	203
QpXV_denom	509271
QpX_denom	2752479
QpX_remove_denom	1744452
RgV_nffix	49
RgX_nffix	328333
RgX_to_algX	1666
Rg_nffix	962029
ZX_Dedekind	1539411
ZX_rescale_inv	60000
Z_fac	197
Zlx_gcd	246415
Zlx_sylvester_echelon	4803699
ZpM_hnfmodid	454305
ZpX_disc_val	184798
ZpX_gcd	254932
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993720
ZpX_reduced_resultant_fast	932486
ZpX_resultant_val	3583080
ZpX_resultant_val_i	3629241
ZpX_round4	896
ZpX_sylvester_echelon	74178
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18310141
checkprid_i	23547985
compmod	287457
compositum	91
compositum2	2877
compositum_fix	26915
dbasis	621258
diag_denom	100655
diag_denomval	685901
ei_msqr_mod	353109
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223483
gc_nf_to_Fq	14189094
gen_if_principal	35
get_LV	216933
get_coprimes	294
get_d	3220
get_g	356799
get_gamma	303700
get_maxord	813463
get_modpr	137753
get_module	63
get_norm	506098
get_nu	641722
get_partial_order_as_pols	509271
get_powers	161586
get_pr	416696
get_prid	939659
getprime	563968
hnf_Znproj	1084267
ideal_is1	8049
idealprimedec	1299831
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936158
idealprimedec_limit_f	2822607
idealprimedec_limit_norm	507444
indexpartial	44096
init_m	4515509
init_norm	216910
is_uniformizer	506091
lift_to_zk	93673
loop	238890
manage_cache	706686
maxord	1539412
maxord_disc	711242
maxord_i	455192
minval	3776
mk_pr	4396805
modpr_TAU	4050725
modpr_genFq	4508
modprinit	1212799
mul_intersect	712379
mycaract	706744
newtoncharpoly	699886
newtonsums	706751
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	12922460
nf_to_Fq_i	14189617
nf_to_Fq_init	4049463
nfbasis	938
nfcompositum	13569
nfcompositum_lambda	511
nfdisc	66462
nfdiscfactors	644786
nfidealdet1	63
nfisintegral	32235
nfmaxord	102219
nfmaxord_check_args	813469
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916404
p_is_prime	2211
pol_min	118962
polcompositum0	13016
poldiscfactors	42
poldiscfactors_i	788784
pow_ei_mod_p	748712
pr_anti_uniformizer	1006036
pr_factorback	4277
pr_factorback_scal	4277
pradical	216939
primedec_aux	2829535
primedec_end	216938
progress	394755
redelt	48559
redelt_i	64394
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	746949
set_disc	813432
split_char	480914
sqr_mod	831354
testb2	67291
testc2	48559
to_ff_init	4083597
triv_order	1513
uniformizer	300065
update_den	3574258
update_fact	2473
update_phi	276661
vstar	624694
zk_to_Fq	6521594
zk_to_Fq_init	34110
zkmodprinit	175397
zx_z_div	1533667

Generated by: LCOV version 1.16