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
Decomp	225486
Flx_checkdeflate	1408566
Flx_radical	1408563
FpX_radical	5609
Fp_basis	285524
FqM_to_nfM	2912
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10188
Fq_to_nf	3075532
QXQV_to_FpM	199
QpXV_denom	450370
QpX_denom	2457649
QpX_remove_denom	1543959
RgV_nffix	49
RgX_nffix	320335
RgX_to_algX	1638
Rg_nffix	927091
ZX_Dedekind	1352296
ZX_rescale_inv	52065
Z_fac	197
Zlx_gcd	217055
Zlx_sylvester_echelon	4501462
ZpM_hnfmodid	400697
ZpX_disc_val	166445
ZpX_gcd	225486
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	880594
ZpX_reduced_resultant_fast	822337
ZpX_resultant_val	3423635
ZpX_resultant_val_i	3469049
ZpX_round4	896
ZpX_sylvester_echelon	73687
_msqr	4158
_sqr	15838
checkmodpr	210
checkprid	18012355
checkprid_i	23096963
compmod	253954
compositum	87
compositum2	2618
compositum_fix	23542
dbasis	546021
diag_denom	92507
diag_denomval	596677
ei_msqr_mod	332073
errprime	0
expo_is_squarefree	889
fact_from_factors	3977
ffdegree	3672
fill	4200
fix_PE	508
fnz	208778
gc_nf_to_Fq	14110426
gen_if_principal	35
get_LV	194003
get_coprimes	290
get_d	3214
get_g	317512
get_gamma	271745
get_maxord	704516
get_modpr	137753
get_module	63
get_norm	455196
get_nu	568209
get_partial_order_as_pols	450370
get_powers	145632
get_pr	377654
get_prid	939477
getprime	499104
hnf_Znproj	1039751
ideal_is1	7950
idealprimedec	1273664
idealprimedec_degrees	371
idealprimedec_galois	6518
idealprimedec_kummer	3813214
idealprimedec_limit_f	2726572
idealprimedec_limit_norm	499495
indexpartial	38704
init_m	4245970
init_norm	193999
is_uniformizer	455196
lift_to_zk	82697
loop	211402
manage_cache	627412
maxord	1352295
maxord_disc	610891
maxord_i	401591
minval	3725
mk_pr	4227298
modpr_TAU	3911804
modpr_genFq	4508
modprinit	1158872
mul_intersect	653471
mycaract	627419
newtoncharpoly	621198
newtonsums	627418
nfM_to_FqM	1861
nfV_to_FqV	167410
nfXQ_mul	16127
nfX_mul	20255
nfX_rem	16127
nfX_sub	4128
nfX_to_FqX	9375
nfX_to_monic	1652
nfXisintegral	7307
nf_pV_to_prV	37939
nf_pV_to_prVV	26521
nf_to_Fq	12860029
nf_to_Fq_i	14110944
nf_to_Fq_init	3910621
nfbasis	844
nfcompositum	11881
nfcompositum_lambda	511
nfdisc	58205
nfdiscfactors	552693
nfidealdet1	63
nfisintegral	32120
nfmaxord	93623
nfmaxord_check_args	704523
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8203
nfpolisintegral_i	8203
nfreducemodpr	210
ok_modpr	4775593
p_is_prime	2095
pol_min	108140
polcompositum0	11328
poldiscfactors	42
poldiscfactors_i	681948
pow_ei_mod_p	679048
pr_anti_uniformizer	955354
pr_factorback	4277
pr_factorback_scal	4277
pradical	194002
primedec_aux	2733458
primedec_end	194003
progress	347956
redelt	42552
redelt_i	57080
rnfallbase	3165
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4156
rnfdet	14
rnfdisc_factored	854
rnfdiscf	77
rnfeltid_powmod	5746
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2100
rnfmaxord	4072
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	14159
setPE	646307
set_disc	704512
split_char	428086
sqr_mod	771719
testb2	60340
testc2	42552
to_ff_init	3942776
triv_order	1513
uniformizer	271076
update_den	3211180
update_fact	2276
update_phi	243015
vstar	551872
zk_to_Fq	6475757
zk_to_Fq_init	32155
zkmodprinit	174095
zx_z_div	1346679

Generated by: LCOV version 1.16