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 30571-c0dfe82732) Lines: 2228 2369 94.0 % Date: 2025-12-05 09:21:30 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254842
Flx_checkdeflate	1601785
Flx_radical	1601767
FpX_radical	5693
Fp_basis	312318
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087520
QXQV_to_FpM	203
QpXV_denom	509089
QpX_denom	2751406
QpX_remove_denom	1743911
RgV_nffix	49
RgX_nffix	328295
RgX_to_algX	1666
Rg_nffix	962069
ZX_Dedekind	1539105
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246323
Zlx_sylvester_echelon	4803389
ZpM_hnfmodid	454227
ZpX_disc_val	184675
ZpX_gcd	254843
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993571
ZpX_reduced_resultant_fast	932371
ZpX_resultant_val	3582997
ZpX_resultant_val_i	3629134
ZpX_round4	896
ZpX_sylvester_echelon	74185
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18313322
checkprid_i	23551407
compmod	287359
compositum	91
compositum2	2884
compositum_fix	26842
dbasis	621177
diag_denom	100591
diag_denomval	685913
ei_msqr_mod	353044
errprime	0
expo_is_squarefree	889
fact_from_factors	4249
ffdegree	4109
fill	4222
fix_PE	512
fnz	223630
gc_nf_to_Fq	14189075
gen_if_principal	35
get_LV	216984
get_coprimes	294
get_d	3220
get_g	356635
get_gamma	303545
get_maxord	813429
get_modpr	137753
get_module	63
get_norm	506200
get_nu	641508
get_partial_order_as_pols	509091
get_powers	161626
get_pr	416813
get_prid	939659
getprime	563843
hnf_Znproj	1084243
ideal_is1	8049
idealprimedec	1299854
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936354
idealprimedec_limit_f	2822733
idealprimedec_limit_norm	507446
indexpartial	44094
init_m	4515320
init_norm	216957
is_uniformizer	506190
lift_to_zk	93673
loop	238787
manage_cache	706476
maxord	1539104
maxord_disc	711229
maxord_i	455129
minval	3776
mk_pr	4397063
modpr_TAU	4050727
modpr_genFq	4508
modprinit	1212809
mul_intersect	712635
mycaract	706515
newtoncharpoly	699666
newtonsums	706523
nfM_to_FqM	1872
nfV_to_FqV	167410
nfXQ_mul	16523
nfX_mul	20667
nfX_rem	16523
nfX_sub	4144
nfX_to_FqX	9415
nfX_to_monic	1680
nfXisintegral	7329
nf_pV_to_prV	38605
nf_pV_to_prVV	26614
nf_to_Fq	12922445
nf_to_Fq_i	14189594
nf_to_Fq_init	4049494
nfbasis	938
nfcompositum	13534
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644773
nfidealdet1	63
nfisintegral	32235
nfmaxord	102200
nfmaxord_check_args	813433
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916426
p_is_prime	2212
pol_min	119001
polcompositum0	12981
poldiscfactors	42
poldiscfactors_i	788796
pow_ei_mod_p	748811
pr_anti_uniformizer	1006022
pr_factorback	4277
pr_factorback_scal	4277
pradical	216979
primedec_aux	2829635
primedec_end	216986
progress	394660
redelt	48572
redelt_i	64398
rnfallbase	3171
rnfbasis	21
rnfdedekind	91
rnfdedekind_i	4172
rnfdet	14
rnfdisc_factored	868
rnfdiscf	77
rnfeltid_powmod	5834
rnfhnfbasis	7
rnfisfree	7
rnfjoinmodules	1329
rnfjoinmodules_i	2111
rnfmaxord	4088
rnfsimplifybasis	0
rnfsteinitz	28
safe_Z_pvalrem	15092
setPE	746932
set_disc	813413
split_char	480688
sqr_mod	831377
testb2	67245
testc2	48572
to_ff_init	4083429
triv_order	1513
uniformizer	300149
update_den	3572256
update_fact	2439
update_phi	276637
vstar	624563
zk_to_Fq	6521686
zk_to_Fq_init	34111
zkmodprinit	175411
zx_z_div	1533347

Generated by: LCOV version 1.16