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 30465-b757eeabfc) Lines: 2228 2369 94.0 % Date: 2025-08-12 09:23:53 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254838
Flx_checkdeflate	1601654
Flx_radical	1601620
FpX_radical	5692
Fp_basis	312150
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10184
Fq_to_nf	3087275
QXQV_to_FpM	203
QpXV_denom	509076
QpX_denom	2751291
QpX_remove_denom	1743837
RgV_nffix	49
RgX_nffix	328267
RgX_to_algX	1666
Rg_nffix	961842
ZX_Dedekind	1538971
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246316
Zlx_sylvester_echelon	4799434
ZpM_hnfmodid	454208
ZpX_disc_val	184660
ZpX_gcd	254838
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993487
ZpX_reduced_resultant_fast	932293
ZpX_resultant_val	3578924
ZpX_resultant_val_i	3625098
ZpX_round4	896
ZpX_sylvester_echelon	74052
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18069868
checkprid_i	23304687
compmod	287335
compositum	91
compositum2	2877
compositum_fix	26831
dbasis	621095
diag_denom	100534
diag_denomval	685884
ei_msqr_mod	352606
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223459
gc_nf_to_Fq	14188726
gen_if_principal	35
get_LV	216899
get_coprimes	294
get_d	3213
get_g	356627
get_gamma	303531
get_maxord	813395
get_modpr	137753
get_module	63
get_norm	505999
get_nu	641495
get_partial_order_as_pols	509079
get_powers	161580
get_pr	416632
get_prid	939659
getprime	563784
hnf_Znproj	1084196
ideal_is1	8049
idealprimedec	1299802
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3932189
idealprimedec_limit_f	2819635
idealprimedec_limit_norm	505065
indexpartial	44095
init_m	4511154
init_norm	216879
is_uniformizer	506043
lift_to_zk	93673
loop	238775
manage_cache	706431
maxord	1538971
maxord_disc	711234
maxord_i	455103
minval	3776
mk_pr	4392750
modpr_TAU	4048403
modpr_genFq	4508
modprinit	1212726
mul_intersect	712284
mycaract	706477
newtoncharpoly	699615
newtonsums	706493
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	12922388
nf_to_Fq_i	14189241
nf_to_Fq_init	4047174
nfbasis	938
nfcompositum	13526
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644776
nfidealdet1	63
nfisintegral	31955
nfmaxord	102159
nfmaxord_check_args	813392
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8225
nfpolisintegral_i	8225
nfreducemodpr	210
ok_modpr	4914089
p_is_prime	2212
pol_min	118954
polcompositum0	12973
poldiscfactors	42
poldiscfactors_i	788760
pow_ei_mod_p	748497
pr_anti_uniformizer	1006009
pr_factorback	4263
pr_factorback_scal	4263
pradical	216894
primedec_aux	2826534
primedec_end	216899
progress	394628
redelt	48566
redelt_i	64395
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	746874
set_disc	813342
split_char	480689
sqr_mod	830668
testb2	67237
testc2	48565
to_ff_init	4081289
triv_order	1506
uniformizer	300023
update_den	3572058
update_fact	2439
update_phi	276613
vstar	624501
zk_to_Fq	6521342
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533254

Generated by: LCOV version 1.16