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 30556-bb9f5f8fc8) Lines: 2225 2369 93.9 % Date: 2025-11-25 09:20:50 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254569
Flx_checkdeflate	1599940
Flx_radical	1599937
FpX_radical	5668
Fp_basis	310742
FqM_to_nfM	1978
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	8217
Fq_to_nf	3057153
QXQV_to_FpM	197
QpXV_denom	508547
QpX_denom	2746885
QpX_remove_denom	1741297
RgV_nffix	49
RgX_nffix	319024
RgX_to_algX	1666
Rg_nffix	929239
ZX_Dedekind	1537315
ZX_rescale_inv	59994
Z_fac	197
Zlx_gcd	246056
Zlx_sylvester_echelon	4785492
ZpM_hnfmodid	453669
ZpX_disc_val	184170
ZpX_gcd	254575
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	992021
ZpX_reduced_resultant_fast	931023
ZpX_resultant_val	3566603
ZpX_resultant_val_i	3612735
ZpX_round4	896
ZpX_sylvester_echelon	73850
_msqr	1512
_sqr	8249
checkmodpr	210
checkprid	18046988
checkprid_i	23276848
compmod	286962
compositum	91
compositum2	2793
compositum_fix	26648
dbasis	620371
diag_denom	100040
diag_denomval	685643
ei_msqr_mod	350736
errprime	0
expo_is_squarefree	889
fact_from_factors	4130
ffdegree	4088
fill	2308
fix_PE	512
fnz	221881
gc_nf_to_Fq	13936263
gen_if_principal	35
get_LV	216444
get_coprimes	294
get_d	3025
get_g	355999
get_gamma	302882
get_maxord	812150
get_modpr	137753
get_module	63
get_norm	504744
get_nu	640587
get_partial_order_as_pols	508555
get_powers	160729
get_pr	415162
get_prid	939743
getprime	563180
hnf_Znproj	1081500
ideal_is1	5071
idealprimedec	1295208
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3916839
idealprimedec_limit_f	2812018
idealprimedec_limit_norm	507446
indexpartial	43219
init_m	4497569
init_norm	216407
is_uniformizer	504739
lift_to_zk	93468
loop	238409
manage_cache	705219
maxord	1537315
maxord_disc	711209
maxord_i	454569
minval	2238
mk_pr	4376125
modpr_TAU	4043052
modpr_genFq	4368
modprinit	1209680
mul_intersect	708836
mycaract	705257
newtoncharpoly	698415
newtonsums	705270
nfM_to_FqM	1244
nfV_to_FqV	167410
nfXQ_mul	9133
nfX_mul	12570
nfX_rem	9133
nfX_sub	3437
nfX_to_FqX	8001
nfX_to_monic	1680
nfXisintegral	6517
nf_pV_to_prV	37737
nf_pV_to_prVV	26600
nf_to_Fq	12919838
nf_to_Fq_i	13936779
nf_to_Fq_init	4042023
nfbasis	917
nfcompositum	13434
nfcompositum_lambda	504
nfdisc	66437
nfdiscfactors	644780
nfidealdet1	63
nfisintegral	27216
nfmaxord	100941
nfmaxord_check_args	812164
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	5299
nfpolisintegral_i	5299
nfreducemodpr	210
ok_modpr	4908944
p_is_prime	2216
pol_min	118188
polcompositum0	12888
poldiscfactors	42
poldiscfactors_i	787787
pow_ei_mod_p	745260
pr_anti_uniformizer	1003783
pr_factorback	3964
pr_factorback_scal	3964
pradical	216442
primedec_aux	2818927
primedec_end	216444
progress	394202
redelt	48554
redelt_i	64298
rnfallbase	3066
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	3465
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	3484
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	763
rnfjoinmodules_i	1154
rnfmaxord	3381
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	14693
setPE	745675
set_disc	812131
split_char	479750
sqr_mod	826734
testb2	66964
testc2	48554
to_ff_init	4076138
triv_order	1492
uniformizer	298828
update_den	3564970
update_fact	2444
update_phi	276359
vstar	623889
zk_to_Fq	6391173
zk_to_Fq_init	34090
zkmodprinit	174774
zx_z_div	1531633

Generated by: LCOV version 1.16