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 30622-caa25a75db) Lines: 2227 2369 94.0 % Date: 2026-01-22 09:18:00 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	87
rnfdedekind	91
Z_fac	197
QXQV_to_FpM	199
checkmodpr	210
nfreducemodpr	210
get_coprimes	290
nfmodpr	350
idealprimedec_degrees	371
fix_PE	508
nfcompositum_lambda	511
ZpX_monic_factor	546
nfbasis	844
rnfdisc_factored	854
expo_is_squarefree	889
ZpX_round4	896
ZpX_monic_factor_squarefree	1155
rnfjoinmodules	1329
triv_order	1513
RgX_to_algX	1638
nfX_to_monic	1652
nfM_to_FqM	1861
p_is_prime	2095
rnfjoinmodules_i	2100
update_fact	2276
compositum2	2618
FqM_to_nfM	2912
rnfallbase	3165
get_d	3214
ffdegree	3672
minval	3725
fact_from_factors	3977
rnfmaxord	4072
nfX_sub	4128
rnfdedekind_i	4156
_msqr	4158
fill	4200
pr_factorback	4277
pr_factorback_scal	4277
modpr_genFq	4508
FpX_radical	5609
rnfeltid_powmod	5746
idealprimedec_galois	6518
nfXisintegral	7307
ideal_is1	7950
nfpolisintegral	8203
nfpolisintegral_i	8203
nfX_to_FqX	9375
FqX_to_nfX	10188
polcompositum0	11328
nfcompositum	11881
safe_Z_pvalrem	14159
_sqr	15838
nfXQ_mul	16127
nfX_rem	16127
nfX_mul	20255
compositum_fix	23542
nf_pV_to_prVV	26521
nfisintegral	32120
zk_to_Fq_init	32155
nf_pV_to_prV	37939
indexpartial	38704
redelt	42552
testc2	42552
ZX_rescale_inv	52065
redelt_i	57080
nfdisc	58205
testb2	60340
ZpX_sylvester_echelon	73687
lift_to_zk	82697
diag_denom	92507
nfmaxord	93623
pol_min	108140
get_modpr	137753
get_powers	145632
ZpX_disc_val	166445
nfV_to_FqV	167410
zkmodprinit	174095
init_norm	193999
pradical	194002
get_LV	194003
primedec_end	194003
fnz	208778
loop	211402
Zlx_gcd	217055
Decomp	225486
ZpX_gcd	225486
update_phi	243015
compmod	253954
uniformizer	271076
get_gamma	271745
Fp_basis	285524
get_g	317512
RgX_nffix	320335
ei_msqr_mod	332073
progress	347956
get_pr	377654
ZpM_hnfmodid	400697
maxord_i	401591
split_char	428086
QpXV_denom	450370
get_partial_order_as_pols	450370
get_norm	455196
is_uniformizer	455196
getprime	499104
idealprimedec_limit_norm	499495
dbasis	546021
vstar	551872
nfdiscfactors	552693
get_nu	568209
diag_denomval	596677
maxord_disc	610891
newtoncharpoly	621198
manage_cache	627412
newtonsums	627418
mycaract	627419
setPE	646307
mul_intersect	653471
pow_ei_mod_p	679048
poldiscfactors_i	681948
set_disc	704512
get_maxord	704516
nfmaxord_check_args	704523
sqr_mod	771719
ZpX_reduced_resultant_fast	822337
ZpX_reduced_resultant	880594
Rg_nffix	927091
get_prid	939477
pr_anti_uniformizer	955354
hnf_Znproj	1039751
modprinit	1158872
idealprimedec	1273664
zx_z_div	1346679
maxord	1352295
ZX_Dedekind	1352296
Flx_radical	1408563
Flx_checkdeflate	1408566
QpX_remove_denom	1543959
QpX_denom	2457649
idealprimedec_limit_f	2726572
primedec_aux	2733458
Fq_to_nf	3075532
update_den	3211180
ZpX_resultant_val	3423635
ZpX_resultant_val_i	3469049
idealprimedec_kummer	3813214
nf_to_Fq_init	3910621
modpr_TAU	3911804
to_ff_init	3942776
mk_pr	4227298
init_m	4245970
Zlx_sylvester_echelon	4501462
ok_modpr	4775593
zk_to_Fq	6475757
nf_to_Fq	12860029
gc_nf_to_Fq	14110426
nf_to_Fq_i	14110944
checkprid	18012355
checkprid_i	23096963

Generated by: LCOV version 1.16