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 30536-6f6fcf9613) Lines: 2228 2369 94.0 % Date: 2025-11-06 09:21:54 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254835
Flx_checkdeflate	1601663
Flx_radical	1601658
FpX_radical	5692
Fp_basis	312145
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10184
Fq_to_nf	3087273
QXQV_to_FpM	203
QpXV_denom	509072
QpX_denom	2751243
QpX_remove_denom	1743784
RgV_nffix	49
RgX_nffix	328272
RgX_to_algX	1666
Rg_nffix	961886
ZX_Dedekind	1538988
ZX_rescale_inv	59982
Z_fac	197
Zlx_gcd	246310
Zlx_sylvester_echelon	4801540
ZpM_hnfmodid	454206
ZpX_disc_val	184657
ZpX_gcd	254834
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993530
ZpX_reduced_resultant_fast	932302
ZpX_resultant_val	3581022
ZpX_resultant_val_i	3627241
ZpX_round4	896
ZpX_sylvester_echelon	74054
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074229
checkprid_i	23311360
compmod	287332
compositum	91
compositum2	2877
compositum_fix	26831
dbasis	621098
diag_denom	100533
diag_denomval	685890
ei_msqr_mod	352567
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223475
gc_nf_to_Fq	14188730
gen_if_principal	35
get_LV	216903
get_coprimes	294
get_d	3213
get_g	356626
get_gamma	303539
get_maxord	813392
get_modpr	137753
get_module	63
get_norm	506049
get_nu	641468
get_partial_order_as_pols	509075
get_powers	161579
get_pr	416632
get_prid	939659
getprime	563771
hnf_Znproj	1084198
ideal_is1	8049
idealprimedec	1299800
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934430
idealprimedec_limit_f	2821886
idealprimedec_limit_norm	507443
indexpartial	44094
init_m	4513261
init_norm	216867
is_uniformizer	506041
lift_to_zk	93673
loop	238771
manage_cache	706418
maxord	1538990
maxord_disc	711223
maxord_i	455107
minval	3776
mk_pr	4394937
modpr_TAU	4050640
modpr_genFq	4508
modprinit	1212721
mul_intersect	712259
mycaract	706463
newtoncharpoly	699609
newtonsums	706468
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	12922387
nf_to_Fq_i	14189247
nf_to_Fq_init	4049371
nfbasis	938
nfcompositum	13529
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644770
nfidealdet1	63
nfisintegral	31955
nfmaxord	102171
nfmaxord_check_args	813403
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8225
nfpolisintegral_i	8225
nfreducemodpr	210
ok_modpr	4916281
p_is_prime	2212
pol_min	118954
polcompositum0	12976
poldiscfactors	42
poldiscfactors_i	788771
pow_ei_mod_p	748494
pr_anti_uniformizer	1005999
pr_factorback	4263
pr_factorback_scal	4263
pradical	216897
primedec_aux	2828767
primedec_end	216902
progress	394617
redelt	48560
redelt_i	64391
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	746883
set_disc	813365
split_char	480674
sqr_mod	830623
testb2	67241
testc2	48561
to_ff_init	4083477
triv_order	1506
uniformizer	300027
update_den	3571936
update_fact	2438
update_phi	276601
vstar	624504
zk_to_Fq	6521407
zk_to_Fq_init	34096
zkmodprinit	175376
zx_z_div	1533265

Generated by: LCOV version 1.16