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

Generated by: LCOV version 1.16