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 30764-6b81f1f3fa) Lines: 2227 2369 94.0 % Date: 2026-03-25 09:26:52 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254737
Flx_checkdeflate	1602354
Flx_radical	1602351
FpX_radical	5693
Fp_basis	312085
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087512
QXQV_to_FpM	203
QpXV_denom	508876
QpX_denom	2749807
QpX_remove_denom	1743032
RgV_nffix	49
RgX_nffix	327963
RgX_to_algX	1666
Rg_nffix	960565
ZX_Dedekind	1539625
ZX_rescale_inv	59975
Z_fac	197
Zlx_gcd	246231
Zlx_sylvester_echelon	4802598
ZpM_hnfmodid	454072
ZpX_disc_val	184521
ZpX_gcd	254739
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993209
ZpX_reduced_resultant_fast	932082
ZpX_resultant_val	3582648
ZpX_resultant_val_i	3628790
ZpX_round4	896
ZpX_sylvester_echelon	74166
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18387950
checkprid_i	23627007
compmod	287189
compositum	91
compositum2	2870
compositum_fix	26675
dbasis	620933
diag_denom	100208
diag_denomval	686757
ei_msqr_mod	352887
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222732
gc_nf_to_Fq	14188646
gen_if_principal	35
get_LV	216874
get_coprimes	294
get_d	3220
get_g	356424
get_gamma	303311
get_maxord	815696
get_modpr	137753
get_module	63
get_norm	505929
get_nu	641240
get_partial_order_as_pols	508881
get_powers	161543
get_pr	416577
get_prid	939974
getprime	563555
hnf_Znproj	1083969
ideal_is1	8049
idealprimedec	1299797
idealprimedec_degrees	371
idealprimedec_galois	6601
idealprimedec_kummer	3936450
idealprimedec_limit_f	2822590
idealprimedec_limit_norm	507445
indexpartial	44108
init_m	4514687
init_norm	216857
is_uniformizer	505928
lift_to_zk	93673
loop	238638
manage_cache	706104
maxord	1539628
maxord_disc	713672
maxord_i	454966
minval	3776
mk_pr	4397022
modpr_TAU	4050471
modpr_genFq	4508
modprinit	1212552
mul_intersect	712131
mycaract	706139
newtoncharpoly	699338
newtonsums	706145
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	12922022
nf_to_Fq_i	14189166
nf_to_Fq_init	4049272
nfbasis	938
nfcompositum	13452
nfcompositum_lambda	511
nfdisc	68898
nfdiscfactors	644785
nfidealdet1	63
nfisintegral	32235
nfmaxord	102025
nfmaxord_check_args	815705
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916699
p_is_prime	2206
pol_min	118920
polcompositum0	12899
poldiscfactors	42
poldiscfactors_i	791284
pow_ei_mod_p	748342
pr_anti_uniformizer	1005838
pr_factorback	4277
pr_factorback_scal	4277
pradical	216873
primedec_aux	2829557
primedec_end	216874
progress	394438
redelt	48553
redelt_i	64355
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	746790
set_disc	815662
split_char	480400
sqr_mod	830975
testb2	67195
testc2	48553
to_ff_init	4083392
triv_order	1513
uniformizer	299969
update_den	3570166
update_fact	2357
update_phi	276587
vstar	624264
zk_to_Fq	6521080
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1533909

Generated by: LCOV version 1.16