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 30438-dbd0fb03e8) Lines: 2228 2369 94.0 % Date: 2025-08-03 09:23:43 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	183
QXQV_to_FpM	203
checkmodpr	210
nfreducemodpr	210
get_coprimes	294
nfmodpr	350
idealprimedec_degrees	371
fix_PE	498
nfcompositum_lambda	511
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	2212
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	12974
nfcompositum	13527
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20646
nf_pV_to_prVV	26614
compositum_fix	26832
nfisintegral	31955
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44096
testc2	48564
redelt	48565
ZX_rescale_inv	59982
redelt_i	64394
nfdisc	66465
testb2	67236
ZpX_sylvester_echelon	74051
lift_to_zk	93673
diag_denom	100529
nfmaxord	102155
pol_min	118962
get_modpr	137753
get_powers	161587
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184653
init_norm	216878
pradical	216904
get_LV	216905
primedec_end	216905
fnz	223471
loop	238766
Zlx_gcd	246312
Decomp	254828
ZpX_gcd	254834
update_phi	276617
compmod	287330
uniformizer	300036
get_gamma	303532
Fp_basis	312151
RgX_nffix	328270
ei_msqr_mod	352587
get_g	356621
progress	394615
get_pr	416638
ZpM_hnfmodid	454208
maxord_i	455106
split_char	480662
idealprimedec_limit_norm	505224
is_uniformizer	506065
get_norm	506071
QpXV_denom	509066
get_partial_order_as_pols	509068
getprime	563792
dbasis	621084
vstar	624514
get_nu	641476
nfdiscfactors	644784
diag_denomval	685888
newtoncharpoly	699603
manage_cache	706402
mycaract	706456
newtonsums	706473
maxord_disc	711243
mul_intersect	712281
setPE	746895
pow_ei_mod_p	748519
poldiscfactors_i	788758
set_disc	813362
get_maxord	813396
nfmaxord_check_args	813403
sqr_mod	830649
ZpX_reduced_resultant_fast	932298
get_prid	939659
Rg_nffix	961882
ZpX_reduced_resultant	993520
pr_anti_uniformizer	1006000
hnf_Znproj	1084199
modprinit	1212715
idealprimedec	1299795
zx_z_div	1533229
ZX_Dedekind	1538975
maxord	1538975
Flx_radical	1601634
Flx_checkdeflate	1601657
QpX_remove_denom	1743778
QpX_denom	2751218
idealprimedec_limit_f	2818641
primedec_aux	2825538
Fq_to_nf	3087274
update_den	3571925
ZpX_resultant_val	3577453
ZpX_resultant_val_i	3623630
idealprimedec_kummer	3930626
nf_to_Fq_init	4047153
modpr_TAU	4048400
to_ff_init	4081264
mk_pr	4391306
init_m	4509699
Zlx_sylvester_echelon	4797912
ok_modpr	4914060
zk_to_Fq	6521424
nf_to_Fq	12922397
gc_nf_to_Fq	14188743
nf_to_Fq_i	14189261
checkprid	18054387
checkprid_i	23289272

Generated by: LCOV version 1.16