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
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	2212
update_fact	2439
compositum2	2884
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	4249
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5693
rnfeltid_powmod	5834
idealprimedec_galois	6552
nfXisintegral	7329
ideal_is1	8049
nfpolisintegral	8253
nfpolisintegral_i	8253
nfX_to_FqX	9415
FqX_to_nfX	10226
polcompositum0	12977
nfcompositum	13531
safe_Z_pvalrem	15092
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26841
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44094
testc2	48555
redelt	48556
ZX_rescale_inv	59985
redelt_i	64386
nfdisc	66464
testb2	67247
ZpX_sylvester_echelon	74192
lift_to_zk	93673
diag_denom	100592
nfmaxord	102195
pol_min	118993
get_modpr	137753
get_powers	161618
nfV_to_FqV	167410
zkmodprinit	175411
ZpX_disc_val	184673
init_norm	216942
pradical	216974
get_LV	216976
primedec_end	216977
fnz	223604
loop	238773
Zlx_gcd	246322
Decomp	254844
ZpX_gcd	254847
update_phi	276652
compmod	287326
uniformizer	300129
get_gamma	303539
Fp_basis	312305
RgX_nffix	328295
ei_msqr_mod	353031
get_g	356633
progress	394625
get_pr	416795
ZpM_hnfmodid	454222
maxord_i	455116
split_char	480682
is_uniformizer	506156
get_norm	506158
idealprimedec_limit_norm	507444
QpXV_denom	509091
get_partial_order_as_pols	509096
getprime	563791
dbasis	621166
vstar	624508
get_nu	641529
nfdiscfactors	644775
diag_denomval	685904
newtoncharpoly	699668
manage_cache	706474
mycaract	706504
newtonsums	706523
maxord_disc	711241
mul_intersect	712606
setPE	746926
pow_ei_mod_p	748786
poldiscfactors_i	788800
set_disc	813423
get_maxord	813431
nfmaxord_check_args	813449
sqr_mod	831345
ZpX_reduced_resultant_fast	932340
get_prid	939659
Rg_nffix	962068
ZpX_reduced_resultant	993555
pr_anti_uniformizer	1006046
hnf_Znproj	1084269
modprinit	1212807
idealprimedec	1299864
zx_z_div	1533359
maxord	1539097
ZX_Dedekind	1539098
Flx_radical	1601776
Flx_checkdeflate	1601787
QpX_remove_denom	1743843
QpX_denom	2751346
idealprimedec_limit_f	2822734
primedec_aux	2829632
Fq_to_nf	3087517
update_den	3572182
ZpX_resultant_val	3582930
ZpX_resultant_val_i	3629104
idealprimedec_kummer	3936330
nf_to_Fq_init	4049464
modpr_TAU	4050711
to_ff_init	4083589
mk_pr	4396978
init_m	4515204
Zlx_sylvester_echelon	4803371
ok_modpr	4916389
zk_to_Fq	6521664
nf_to_Fq	12922448
gc_nf_to_Fq	14189063
nf_to_Fq_i	14189578
checkprid	18313224
checkprid_i	23551255

Generated by: LCOV version 1.16