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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 94.0 % 2369 2227 Test Date: 2026-09-03 17:02:47 Functions: 97.8 % 178 174 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	210
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	2291
update_fact	2356
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	5697
rnfeltid_powmod	5834
idealprimedec_galois	6601
nfXisintegral	7329
ideal_is1	8049
nfpolisintegral	8253
nfpolisintegral_i	8253
nfX_to_FqX	9415
FqX_to_nfX	10226
polcompositum0	12908
nfcompositum	13461
safe_Z_pvalrem	15029
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20667
nf_pV_to_prVV	26614
compositum_fix	26698
nfisintegral	32235
zk_to_Fq_init	34111
nf_pV_to_prV	38605
indexpartial	44126
redelt	48699
testc2	48699
ZX_rescale_inv	59948
redelt_i	64662
testb2	67420
nfdisc	68901
ZpX_sylvester_echelon	74449
lift_to_zk	93325
diag_denom	100819
nfmaxord	102530
pol_min	118738
get_modpr	137753
get_powers	161190
nfV_to_FqV	167410
zkmodprinit	175369
ZpX_disc_val	185053
get_LV	216657
init_norm	216657
pradical	216657
primedec_end	216657
fnz	224750
loop	239042
Zlx_gcd	246518
Decomp	255253
ZpX_gcd	255253
update_phi	277006
compmod	287741
uniformizer	299587
get_gamma	304161
Fp_basis	311937
RgX_nffix	329970
ei_msqr_mod	352490
get_g	357227
progress	394990
get_pr	416282
ZpM_hnfmodid	455054
maxord_i	455950
split_char	481797
get_norm	505230
is_uniformizer	505230
idealprimedec_limit_norm	509474
QpXV_denom	509904
get_partial_order_as_pols	509904
getprime	564731
dbasis	621496
vstar	625409
get_nu	642684
nfdiscfactors	644798
diag_denomval	686744
newtoncharpoly	701234
manage_cache	708018
mycaract	708018
newtonsums	708018
mul_intersect	711831
maxord_disc	713692
setPE	747321
pow_ei_mod_p	748054
poldiscfactors_i	791395
get_maxord	816222
nfmaxord_check_args	816222
set_disc	816222
sqr_mod	830759
ZpX_reduced_resultant_fast	933963
get_prid	940002
Rg_nffix	969526
ZpX_reduced_resultant	995744
pr_anti_uniformizer	1005886
hnf_Znproj	1084728
modprinit	1212622
idealprimedec	1300136
zx_z_div	1535981
ZX_Dedekind	1541678
maxord	1541678
Flx_checkdeflate	1604580
Flx_radical	1604580
QpX_remove_denom	1747247
QpX_denom	2770398
idealprimedec_limit_f	2824794
primedec_aux	2831766
Fq_to_nf	3087513
update_den	3583666
ZpX_resultant_val	3585736
ZpX_resultant_val_i	3632159
idealprimedec_kummer	3938725
nf_to_Fq_init	4049467
modpr_TAU	4050650
to_ff_init	4083578
mk_pr	4398852
init_m	4519699
Zlx_sylvester_echelon	4808707
ok_modpr	4916921
zk_to_Fq	6521291
nf_to_Fq	12922213
gc_nf_to_Fq	14188834
nf_to_Fq_i	14189338
checkprid	18388204
checkprid_i	23629092

Generated by: LCOV version 2.0-1