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 30660-09c6d0ed2e) Lines: 2227 2369 94.0 % Date: 2026-02-02 09:23:03 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	2354
compositum2	2870
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	4235
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	12891
nfcompositum	13443
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26661
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44082
redelt	48562
testc2	48562
ZX_rescale_inv	59931
redelt_i	64357
nfdisc	66465
testb2	67177
ZpX_sylvester_echelon	74149
lift_to_zk	93671
diag_denom	100211
nfmaxord	101969
pol_min	118929
get_modpr	137753
get_powers	161554
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	184469
init_norm	216851
pradical	216875
get_LV	216879
primedec_end	216879
fnz	222807
loop	238603
Zlx_gcd	246169
Decomp	254674
ZpX_gcd	254674
update_phi	276503
compmod	287163
uniformizer	299971
get_gamma	303292
Fp_basis	312070
RgX_nffix	328105
ei_msqr_mod	352797
get_g	356369
progress	394407
get_pr	416562
ZpM_hnfmodid	453993
maxord_i	454887
split_char	480352
is_uniformizer	505924
get_norm	505927
idealprimedec_limit_norm	507447
QpXV_denom	508747
get_partial_order_as_pols	508751
getprime	563472
dbasis	620746
vstar	624137
get_nu	641112
nfdiscfactors	644765
diag_denomval	685912
newtoncharpoly	699256
manage_cache	706016
mycaract	706051
newtonsums	706052
maxord_disc	711237
mul_intersect	712095
setPE	746745
pow_ei_mod_p	748321
poldiscfactors_i	788795
set_disc	813200
get_maxord	813205
nfmaxord_check_args	813217
sqr_mod	830858
ZpX_reduced_resultant_fast	931894
get_prid	939477
Rg_nffix	960435
ZpX_reduced_resultant	993029
pr_anti_uniformizer	1005825
hnf_Znproj	1083974
modprinit	1212542
idealprimedec	1299665
zx_z_div	1532500
maxord	1538182
ZX_Dedekind	1538196
Flx_radical	1600932
Flx_checkdeflate	1600935
QpX_remove_denom	1742827
QpX_denom	2749385
idealprimedec_limit_f	2822391
primedec_aux	2829309
Fq_to_nf	3087511
update_den	3569583
ZpX_resultant_val	3582091
ZpX_resultant_val_i	3628178
idealprimedec_kummer	3935776
nf_to_Fq_init	4049232
modpr_TAU	4050464
to_ff_init	4083350
mk_pr	4396385
init_m	4513936
Zlx_sylvester_echelon	4801743
ok_modpr	4916166
zk_to_Fq	6521113
nf_to_Fq	12922020
gc_nf_to_Fq	14188658
nf_to_Fq_i	14189175
checkprid	18382946
checkprid_i	23621061

Generated by: LCOV version 1.16