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 30483-b6b1f87815) Lines: 2228 2369 94.0 % Date: 2025-09-12 09:24:16 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254834
Flx_checkdeflate	1601647
Flx_radical	1601621
FpX_radical	5692
Fp_basis	312156
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10184
Fq_to_nf	3087271
QXQV_to_FpM	203
QpXV_denom	509072
QpX_denom	2751238
QpX_remove_denom	1743778
RgV_nffix	49
RgX_nffix	328266
RgX_to_algX	1666
Rg_nffix	961870
ZX_Dedekind	1538974
ZX_rescale_inv	59988
Z_fac	197
Zlx_gcd	246314
Zlx_sylvester_echelon	4799395
ZpM_hnfmodid	454212
ZpX_disc_val	184665
ZpX_gcd	254838
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993456
ZpX_reduced_resultant_fast	932254
ZpX_resultant_val	3578950
ZpX_resultant_val_i	3625095
ZpX_round4	896
ZpX_sylvester_echelon	74045
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18069815
checkprid_i	23304728
compmod	287342
compositum	91
compositum2	2877
compositum_fix	26830
dbasis	621094
diag_denom	100530
diag_denomval	685883
ei_msqr_mod	352605
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223448
gc_nf_to_Fq	14188766
gen_if_principal	35
get_LV	216902
get_coprimes	294
get_d	3213
get_g	356617
get_gamma	303525
get_maxord	813399
get_modpr	137753
get_module	63
get_norm	506067
get_nu	641441
get_partial_order_as_pols	509072
get_powers	161584
get_pr	416649
get_prid	939659
getprime	563764
hnf_Znproj	1084196
ideal_is1	8049
idealprimedec	1299808
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3932170
idealprimedec_limit_f	2819671
idealprimedec_limit_norm	505228
indexpartial	44096
init_m	4511143
init_norm	216877
is_uniformizer	506066
lift_to_zk	93673
loop	238770
manage_cache	706375
maxord	1538974
maxord_disc	711234
maxord_i	455103
minval	3776
mk_pr	4392796
modpr_TAU	4048415
modpr_genFq	4508
modprinit	1212724
mul_intersect	712295
mycaract	706432
newtoncharpoly	699563
newtonsums	706442
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20646
nfX_rem	16523
nfX_sub	4123
nfX_to_FqX	9373
nfX_to_monic	1680
nfXisintegral	7301
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922427
nf_to_Fq_i	14189279
nf_to_Fq_init	4047195
nfbasis	938
nfcompositum	13528
nfcompositum_lambda	511
nfdisc	66465
nfdiscfactors	644776
nfidealdet1	63
nfisintegral	31955
nfmaxord	102165
nfmaxord_check_args	813404
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8225
nfpolisintegral_i	8225
nfreducemodpr	210
ok_modpr	4914107
p_is_prime	2210
pol_min	118958
polcompositum0	12975
poldiscfactors	42
poldiscfactors_i	788763
pow_ei_mod_p	748527
pr_anti_uniformizer	1006010
pr_factorback	4263
pr_factorback_scal	4263
pradical	216904
primedec_aux	2826585
primedec_end	216902
progress	394619
redelt	48572
redelt_i	64401
rnfallbase	3164
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4151
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4067
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15050
setPE	746876
set_disc	813362
split_char	480667
sqr_mod	830677
testb2	67231
testc2	48572
to_ff_init	4081304
triv_order	1506
uniformizer	300036
update_den	3571835
update_fact	2438
update_phi	276585
vstar	624495
zk_to_Fq	6521394
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533248

Generated by: LCOV version 1.16