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 30824-18397de1d0) Lines: 2227 2369 94.0 % Date: 2026-04-18 09:26:04 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	197
QXQV_to_FpM	203
checkmodpr	210
nfreducemodpr	210
get_coprimes	294
nfmodpr	350
idealprimedec_degrees	371
nfcompositum_lambda	511
fix_PE	512
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	1513
RgX_to_algX	1666
nfX_to_monic	1680
nfM_to_FqM	1872
rnfjoinmodules_i	2111
p_is_prime	2205
update_fact	2356
compositum2	2870
FqM_to_nfM	2934
rnfallbase	3171
get_d	3220
minval	3776
rnfmaxord	4088
ffdegree	4109
nfX_sub	4144
_msqr	4158
rnfdedekind_i	4172
fill	4222
fact_from_factors	4235
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5693
rnfeltid_powmod	5834
idealprimedec_galois	6601
nfXisintegral	7329
ideal_is1	8049
nfpolisintegral	8253
nfpolisintegral_i	8253
nfX_to_FqX	9415
FqX_to_nfX	10226
polcompositum0	12897
nfcompositum	13450
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26674
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38604
indexpartial	44110
testc2	48558
redelt	48559
ZX_rescale_inv	59980
redelt_i	64359
testb2	67196
nfdisc	68898
ZpX_sylvester_echelon	74163
lift_to_zk	93671
diag_denom	100203
nfmaxord	102033
pol_min	118917
get_modpr	137753
get_powers	161541
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	184506
init_norm	216847
pradical	216867
primedec_end	216867
get_LV	216868
fnz	222789
loop	238636
Zlx_gcd	246221
Decomp	254727
ZpX_gcd	254728
update_phi	276602
compmod	287194
uniformizer	299949
get_gamma	303308
Fp_basis	312085
RgX_nffix	327959
ei_msqr_mod	352885
get_g	356422
progress	394431
get_pr	416547
ZpM_hnfmodid	454058
maxord_i	454954
split_char	480408
is_uniformizer	505900
get_norm	505904
idealprimedec_limit_norm	507441
QpXV_denom	508852
get_partial_order_as_pols	508855
getprime	563567
dbasis	620918
vstar	624284
get_nu	641251
nfdiscfactors	644774
diag_denomval	686737
newtoncharpoly	699299
manage_cache	706104
mycaract	706157
newtonsums	706161
mul_intersect	712126
maxord_disc	713664
setPE	746765
pow_ei_mod_p	748326
poldiscfactors_i	791268
set_disc	815635
get_maxord	815697
nfmaxord_check_args	815699
sqr_mod	830967
ZpX_reduced_resultant_fast	932096
get_prid	939988
Rg_nffix	960557
ZpX_reduced_resultant	993229
pr_anti_uniformizer	1005803
hnf_Znproj	1083943
modprinit	1212518
idealprimedec	1299764
zx_z_div	1533853
ZX_Dedekind	1539580
maxord	1539580
Flx_radical	1602265
Flx_checkdeflate	1602282
QpX_remove_denom	1743034
QpX_denom	2749745
idealprimedec_limit_f	2822527
primedec_aux	2829477
Fq_to_nf	3087510
update_den	3569907
ZpX_resultant_val	3582540
ZpX_resultant_val_i	3628733
idealprimedec_kummer	3936324
nf_to_Fq_init	4049173
modpr_TAU	4050454
to_ff_init	4083297
mk_pr	4396765
init_m	4514575
Zlx_sylvester_echelon	4802500
ok_modpr	4916630
zk_to_Fq	6521063
nf_to_Fq	12921988
gc_nf_to_Fq	14188607
nf_to_Fq_i	14189131
checkprid	18387572
checkprid_i	23626457

Generated by: LCOV version 1.16