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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31053-95e3b72995) Lines: 94.0 % 2369 2227 Test Date: 2026-07-24 17:03:07 Functions: 97.8 % 178 174 Legend: Lines:     hit not hit

Function Name	Hit count
Decomp	255248
Flx_checkdeflate	1604571
Flx_radical	1604571
FpX_radical	5697
Fp_basis	311937
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087513
QXQV_to_FpM	210
QpXV_denom	509894
QpX_denom	2770327
QpX_remove_denom	1747209
RgV_nffix	49
RgX_nffix	329971
RgX_to_algX	1666
Rg_nffix	969529
ZX_Dedekind	1541668
ZX_rescale_inv	59944
Z_fac	197
Zlx_gcd	246515
Zlx_sylvester_echelon	4808645
ZpM_hnfmodid	455048
ZpX_disc_val	185048
ZpX_gcd	255248
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	995746
ZpX_reduced_resultant_fast	933976
ZpX_resultant_val	3585682
ZpX_resultant_val_i	3632097
ZpX_round4	896
ZpX_sylvester_echelon	74446
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18388256
checkprid_i	23629216
compmod	287744
compositum	91
compositum2	2870
compositum_fix	26698
dbasis	621495
diag_denom	100815
diag_denomval	686743
ei_msqr_mod	352493
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	224774
gc_nf_to_Fq	14188834
gen_if_principal	35
get_LV	216658
get_coprimes	294
get_d	3220
get_g	357216
get_gamma	304149
get_maxord	816222
get_modpr	137753
get_module	63
get_norm	505231
get_nu	642667
get_partial_order_as_pols	509894
get_powers	161190
get_pr	416283
get_prid	940002
getprime	564738
hnf_Znproj	1084728
ideal_is1	8049
idealprimedec	1300130
idealprimedec_degrees	371
idealprimedec_galois	6601
idealprimedec_kummer	3938709
idealprimedec_limit_f	2824789
idealprimedec_limit_norm	509474
indexpartial	44126
init_m	4519658
init_norm	216658
is_uniformizer	505231
lift_to_zk	93325
loop	239039
manage_cache	707999
maxord	1541668
maxord_disc	713692
maxord_i	455944
minval	3776
mk_pr	4398838
modpr_TAU	4050650
modpr_genFq	4508
modprinit	1212622
mul_intersect	711831
mycaract	707999
newtoncharpoly	701220
newtonsums	707999
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	12922213
nf_to_Fq_i	14189338
nf_to_Fq_init	4049467
nfbasis	938
nfcompositum	13461
nfcompositum_lambda	511
nfdisc	68901
nfdiscfactors	644798
nfidealdet1	63
nfisintegral	32235
nfmaxord	102530
nfmaxord_check_args	816222
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916921
p_is_prime	2291
pol_min	118738
polcompositum0	12908
poldiscfactors	42
poldiscfactors_i	791395
pow_ei_mod_p	748052
pr_anti_uniformizer	1005886
pr_factorback	4277
pr_factorback_scal	4277
pradical	216658
primedec_aux	2831761
primedec_end	216658
progress	394989
redelt	48705
redelt_i	64666
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	747321
set_disc	816222
split_char	481769
sqr_mod	830756
testb2	67416
testc2	48705
to_ff_init	4083578
triv_order	1513
uniformizer	299588
update_den	3583567
update_fact	2356
update_phi	277019
vstar	625412
zk_to_Fq	6521294
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1535971

Generated by: LCOV version 2.0-1