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 30674-be81ecfdd4) Lines: 2227 2369 94.0 % Date: 2026-02-13 09:23:38 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254676
Flx_checkdeflate	1600931
Flx_radical	1600938
FpX_radical	5693
Fp_basis	312052
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087513
QXQV_to_FpM	203
QpXV_denom	508748
QpX_denom	2749367
QpX_remove_denom	1742808
RgV_nffix	49
RgX_nffix	328098
RgX_to_algX	1666
Rg_nffix	960412
ZX_Dedekind	1538208
ZX_rescale_inv	59933
Z_fac	197
Zlx_gcd	246170
Zlx_sylvester_echelon	4801737
ZpM_hnfmodid	453993
ZpX_disc_val	184469
ZpX_gcd	254675
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993042
ZpX_reduced_resultant_fast	931895
ZpX_resultant_val	3582031
ZpX_resultant_val_i	3628134
ZpX_round4	896
ZpX_sylvester_echelon	74158
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18382874
checkprid_i	23621058
compmod	287156
compositum	91
compositum2	2870
compositum_fix	26660
dbasis	620754
diag_denom	100206
diag_denomval	685911
ei_msqr_mod	352764
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222758
gc_nf_to_Fq	14188684
gen_if_principal	35
get_LV	216874
get_coprimes	294
get_d	3220
get_g	356365
get_gamma	303290
get_maxord	813214
get_modpr	137753
get_module	63
get_norm	505927
get_nu	641101
get_partial_order_as_pols	508751
get_powers	161548
get_pr	416546
get_prid	939477
getprime	563474
hnf_Znproj	1083966
ideal_is1	8049
idealprimedec	1299691
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3935822
idealprimedec_limit_f	2822412
idealprimedec_limit_norm	507449
indexpartial	44082
init_m	4513884
init_norm	216858
is_uniformizer	505922
lift_to_zk	93673
loop	238599
manage_cache	706008
maxord	1538210
maxord_disc	711235
maxord_i	454891
minval	3776
mk_pr	4396361
modpr_TAU	4050488
modpr_genFq	4508
modprinit	1212564
mul_intersect	712043
mycaract	706034
newtoncharpoly	699232
newtonsums	706040
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20667
nfX_rem	16523
nfX_sub	4144
nfX_to_FqX	9415
nfX_to_monic	1680
nfXisintegral	7329
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922050
nf_to_Fq_i	14189198
nf_to_Fq_init	4049280
nfbasis	938
nfcompositum	13439
nfcompositum_lambda	511
nfdisc	66463
nfdiscfactors	644781
nfidealdet1	63
nfisintegral	32235
nfmaxord	101976
nfmaxord_check_args	813215
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916167
p_is_prime	2212
pol_min	118922
polcompositum0	12886
poldiscfactors	42
poldiscfactors_i	788831
pow_ei_mod_p	748306
pr_anti_uniformizer	1005838
pr_factorback	4277
pr_factorback_scal	4277
pradical	216874
primedec_aux	2829327
primedec_end	216874
progress	394405
redelt	48561
redelt_i	64353
rnfallbase	3171
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4172
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4088
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15029
setPE	746754
set_disc	813193
split_char	480345
sqr_mod	830811
testb2	67178
testc2	48561
to_ff_init	4083402
triv_order	1513
uniformizer	299960
update_den	3569557
update_fact	2354
update_phi	276496
vstar	624142
zk_to_Fq	6521120
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1532504

Generated by: LCOV version 1.16