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 30568-0d72d66ef5) Lines: 2228 2369 94.0 % Date: 2025-12-01 09:22:22 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254844
Flx_checkdeflate	1601787
Flx_radical	1601776
FpX_radical	5693
Fp_basis	312305
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087517
QXQV_to_FpM	203
QpXV_denom	509091
QpX_denom	2751346
QpX_remove_denom	1743843
RgV_nffix	49
RgX_nffix	328295
RgX_to_algX	1666
Rg_nffix	962068
ZX_Dedekind	1539098
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246322
Zlx_sylvester_echelon	4803371
ZpM_hnfmodid	454222
ZpX_disc_val	184673
ZpX_gcd	254847
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993555
ZpX_reduced_resultant_fast	932340
ZpX_resultant_val	3582930
ZpX_resultant_val_i	3629104
ZpX_round4	896
ZpX_sylvester_echelon	74192
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18313224
checkprid_i	23551255
compmod	287326
compositum	91
compositum2	2884
compositum_fix	26841
dbasis	621166
diag_denom	100592
diag_denomval	685904
ei_msqr_mod	353031
errprime	0
expo_is_squarefree	889
fact_from_factors	4249
ffdegree	4109
fill	4222
fix_PE	512
fnz	223604
gc_nf_to_Fq	14189063
gen_if_principal	35
get_LV	216976
get_coprimes	294
get_d	3220
get_g	356633
get_gamma	303539
get_maxord	813431
get_modpr	137753
get_module	63
get_norm	506158
get_nu	641529
get_partial_order_as_pols	509096
get_powers	161618
get_pr	416795
get_prid	939659
getprime	563791
hnf_Znproj	1084269
ideal_is1	8049
idealprimedec	1299864
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936330
idealprimedec_limit_f	2822734
idealprimedec_limit_norm	507444
indexpartial	44094
init_m	4515204
init_norm	216942
is_uniformizer	506156
lift_to_zk	93673
loop	238773
manage_cache	706474
maxord	1539097
maxord_disc	711241
maxord_i	455116
minval	3776
mk_pr	4396978
modpr_TAU	4050711
modpr_genFq	4508
modprinit	1212807
mul_intersect	712606
mycaract	706504
newtoncharpoly	699668
newtonsums	706523
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	12922448
nf_to_Fq_i	14189578
nf_to_Fq_init	4049464
nfbasis	938
nfcompositum	13531
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644775
nfidealdet1	63
nfisintegral	32235
nfmaxord	102195
nfmaxord_check_args	813449
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916389
p_is_prime	2212
pol_min	118993
polcompositum0	12977
poldiscfactors	42
poldiscfactors_i	788800
pow_ei_mod_p	748786
pr_anti_uniformizer	1006046
pr_factorback	4277
pr_factorback_scal	4277
pradical	216974
primedec_aux	2829632
primedec_end	216977
progress	394625
redelt	48556
redelt_i	64386
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	15092
setPE	746926
set_disc	813423
split_char	480682
sqr_mod	831345
testb2	67247
testc2	48555
to_ff_init	4083589
triv_order	1513
uniformizer	300129
update_den	3572182
update_fact	2439
update_phi	276652
vstar	624508
zk_to_Fq	6521664
zk_to_Fq_init	34111
zkmodprinit	175411
zx_z_div	1533359

Generated by: LCOV version 1.16