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 30558-88b7dc3357) Lines: 2228 2369 94.0 % Date: 2025-11-27 09:21:46 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254832
Flx_checkdeflate	1601612
Flx_radical	1601597
FpX_radical	5692
Fp_basis	312168
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087506
QXQV_to_FpM	203
QpXV_denom	509060
QpX_denom	2751228
QpX_remove_denom	1743791
RgV_nffix	49
RgX_nffix	328278
RgX_to_algX	1666
Rg_nffix	962004
ZX_Dedekind	1538965
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246302
Zlx_sylvester_echelon	4801688
ZpM_hnfmodid	454213
ZpX_disc_val	184659
ZpX_gcd	254830
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993519
ZpX_reduced_resultant_fast	932303
ZpX_resultant_val	3581343
ZpX_resultant_val_i	3627478
ZpX_round4	896
ZpX_sylvester_echelon	74178
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074460
checkprid_i	23311778
compmod	287336
compositum	91
compositum2	2877
compositum_fix	26828
dbasis	621098
diag_denom	100533
diag_denomval	685891
ei_msqr_mod	352619
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223473
gc_nf_to_Fq	14189042
gen_if_principal	35
get_LV	216902
get_coprimes	294
get_d	3220
get_g	356610
get_gamma	303520
get_maxord	813388
get_modpr	137753
get_module	63
get_norm	506050
get_nu	641469
get_partial_order_as_pols	509065
get_powers	161591
get_pr	416646
get_prid	939659
getprime	563769
hnf_Znproj	1084227
ideal_is1	8049
idealprimedec	1299811
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934693
idealprimedec_limit_f	2821940
idealprimedec_limit_norm	507444
indexpartial	44096
init_m	4513608
init_norm	216860
is_uniformizer	506039
lift_to_zk	93671
loop	238767
manage_cache	706406
maxord	1538967
maxord_disc	711212
maxord_i	455108
minval	3776
mk_pr	4395290
modpr_TAU	4050676
modpr_genFq	4508
modprinit	1212749
mul_intersect	712323
mycaract	706462
newtoncharpoly	699574
newtonsums	706463
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	12922410
nf_to_Fq_i	14189558
nf_to_Fq_init	4049438
nfbasis	938
nfcompositum	13528
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644763
nfidealdet1	63
nfisintegral	32235
nfmaxord	102175
nfmaxord_check_args	813391
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916339
p_is_prime	2210
pol_min	118965
polcompositum0	12975
poldiscfactors	42
poldiscfactors_i	788761
pow_ei_mod_p	748508
pr_anti_uniformizer	1006020
pr_factorback	4277
pr_factorback_scal	4277
pradical	216894
primedec_aux	2828856
primedec_end	216902
progress	394624
redelt	48566
redelt_i	64395
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	15050
setPE	746882
set_disc	813345
split_char	480653
sqr_mod	830689
testb2	67237
testc2	48566
to_ff_init	4083536
triv_order	1513
uniformizer	300040
update_den	3571790
update_fact	2438
update_phi	276622
vstar	624487
zk_to_Fq	6521478
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533223

Generated by: LCOV version 1.16