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 30734-f1f26dedcb) Lines: 2227 2369 94.0 % Date: 2026-03-07 09:24:37 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254735
Flx_checkdeflate	1602340
Flx_radical	1602328
FpX_radical	5693
Fp_basis	312087
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	508874
QpX_denom	2749753
QpX_remove_denom	1742990
RgV_nffix	49
RgX_nffix	327962
RgX_to_algX	1666
Rg_nffix	960568
ZX_Dedekind	1539617
ZX_rescale_inv	59979
Z_fac	197
Zlx_gcd	246232
Zlx_sylvester_echelon	4802562
ZpM_hnfmodid	454060
ZpX_disc_val	184519
ZpX_gcd	254738
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993219
ZpX_reduced_resultant_fast	932111
ZpX_resultant_val	3582570
ZpX_resultant_val_i	3628732
ZpX_round4	896
ZpX_sylvester_echelon	74159
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18387891
checkprid_i	23626354
compmod	287179
compositum	91
compositum2	2870
compositum_fix	26679
dbasis	620937
diag_denom	100212
diag_denomval	686761
ei_msqr_mod	352897
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222760
gc_nf_to_Fq	14188672
gen_if_principal	35
get_LV	216873
get_coprimes	294
get_d	3220
get_g	356420
get_gamma	303308
get_maxord	815690
get_modpr	137753
get_module	63
get_norm	505916
get_nu	641235
get_partial_order_as_pols	508876
get_powers	161546
get_pr	416571
get_prid	939491
getprime	563563
hnf_Znproj	1083979
ideal_is1	8049
idealprimedec	1299821
idealprimedec_degrees	371
idealprimedec_galois	6601
idealprimedec_kummer	3936367
idealprimedec_limit_f	2822597
idealprimedec_limit_norm	507446
indexpartial	44107
init_m	4514640
init_norm	216853
is_uniformizer	505911
lift_to_zk	93669
loop	238626
manage_cache	706092
maxord	1539619
maxord_disc	713676
maxord_i	454958
minval	3776
mk_pr	4396972
modpr_TAU	4050490
modpr_genFq	4508
modprinit	1212556
mul_intersect	712132
mycaract	706136
newtoncharpoly	699315
newtonsums	706137
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	12922049
nf_to_Fq_i	14189186
nf_to_Fq_init	4049244
nfbasis	938
nfcompositum	13452
nfcompositum_lambda	511
nfdisc	68900
nfdiscfactors	644767
nfidealdet1	63
nfisintegral	32235
nfmaxord	102012
nfmaxord_check_args	815705
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916199
p_is_prime	2206
pol_min	118920
polcompositum0	12899
poldiscfactors	42
poldiscfactors_i	791283
pow_ei_mod_p	748341
pr_anti_uniformizer	1005845
pr_factorback	4277
pr_factorback_scal	4277
pradical	216872
primedec_aux	2829560
primedec_end	216874
progress	394429
redelt	48553
redelt_i	64356
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	746780
set_disc	815694
split_char	480372
sqr_mod	830961
testb2	67190
testc2	48553
to_ff_init	4083370
triv_order	1513
uniformizer	299969
update_den	3570150
update_fact	2356
update_phi	276606
vstar	624275
zk_to_Fq	6521112
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1533910

Generated by: LCOV version 1.16