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 30499-74bdd0ac5b) Lines: 2228 2369 94.0 % Date: 2025-09-17 09:23:49 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254837
Flx_checkdeflate	1601652
Flx_radical	1601628
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	3087274
QXQV_to_FpM	203
QpXV_denom	509072
QpX_denom	2751316
QpX_remove_denom	1743857
RgV_nffix	49
RgX_nffix	328272
RgX_to_algX	1666
Rg_nffix	961888
ZX_Dedekind	1538995
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246314
Zlx_sylvester_echelon	4801578
ZpM_hnfmodid	454207
ZpX_disc_val	184654
ZpX_gcd	254839
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993507
ZpX_reduced_resultant_fast	932286
ZpX_resultant_val	3581110
ZpX_resultant_val_i	3627249
ZpX_round4	896
ZpX_sylvester_echelon	74054
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18074372
checkprid_i	23311563
compmod	287349
compositum	91
compositum2	2877
compositum_fix	26832
dbasis	621083
diag_denom	100526
diag_denomval	685882
ei_msqr_mod	352571
errprime	0
expo_is_squarefree	889
fact_from_factors	4242
ffdegree	4109
fill	4222
fix_PE	512
fnz	223444
gc_nf_to_Fq	14188757
gen_if_principal	35
get_LV	216906
get_coprimes	294
get_d	3213
get_g	356637
get_gamma	303545
get_maxord	813392
get_modpr	137753
get_module	63
get_norm	506071
get_nu	641489
get_partial_order_as_pols	509077
get_powers	161583
get_pr	416634
get_prid	939659
getprime	563792
hnf_Znproj	1084193
ideal_is1	8049
idealprimedec	1299803
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3934427
idealprimedec_limit_f	2821893
idealprimedec_limit_norm	507448
indexpartial	44095
init_m	4513322
init_norm	216877
is_uniformizer	506066
lift_to_zk	93671
loop	238780
manage_cache	706429
maxord	1538995
maxord_disc	711219
maxord_i	455102
minval	3776
mk_pr	4395049
modpr_TAU	4050649
modpr_genFq	4508
modprinit	1212721
mul_intersect	712258
mycaract	706476
newtoncharpoly	699623
newtonsums	706498
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	12922418
nf_to_Fq_i	14189267
nf_to_Fq_init	4049393
nfbasis	938
nfcompositum	13526
nfcompositum_lambda	511
nfdisc	66465
nfdiscfactors	644762
nfidealdet1	63
nfisintegral	31955
nfmaxord	102172
nfmaxord_check_args	813399
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8225
nfpolisintegral_i	8225
nfreducemodpr	210
ok_modpr	4916302
p_is_prime	2210
pol_min	118958
polcompositum0	12973
poldiscfactors	42
poldiscfactors_i	788777
pow_ei_mod_p	748499
pr_anti_uniformizer	1006017
pr_factorback	4263
pr_factorback_scal	4263
pradical	216899
primedec_aux	2828808
primedec_end	216906
progress	394631
redelt	48569
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	746897
set_disc	813348
split_char	480706
sqr_mod	830631
testb2	67238
testc2	48570
to_ff_init	4083507
triv_order	1506
uniformizer	300033
update_den	3572039
update_fact	2438
update_phi	276591
vstar	624517
zk_to_Fq	6521406
zk_to_Fq_init	34097
zkmodprinit	175376
zx_z_div	1533229

Generated by: LCOV version 1.16