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

Generated by: LCOV version 1.16