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: 2025-12-06 09:22:10 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254841
Flx_checkdeflate	1601772
Flx_radical	1601743
FpX_radical	5693
Fp_basis	312316
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	509078
QpX_denom	2751320
QpX_remove_denom	1743841
RgV_nffix	49
RgX_nffix	328300
RgX_to_algX	1666
Rg_nffix	962084
ZX_Dedekind	1539104
ZX_rescale_inv	59985
Z_fac	197
Zlx_gcd	246312
Zlx_sylvester_echelon	4803329
ZpM_hnfmodid	454224
ZpX_disc_val	184665
ZpX_gcd	254842
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993526
ZpX_reduced_resultant_fast	932320
ZpX_resultant_val	3582942
ZpX_resultant_val_i	3629112
ZpX_round4	896
ZpX_sylvester_echelon	74190
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18313325
checkprid_i	23551371
compmod	287340
compositum	91
compositum2	2884
compositum_fix	26845
dbasis	621161
diag_denom	100594
diag_denomval	685904
ei_msqr_mod	353064
errprime	0
expo_is_squarefree	889
fact_from_factors	4249
ffdegree	4109
fill	4222
fix_PE	512
fnz	223601
gc_nf_to_Fq	14189085
gen_if_principal	35
get_LV	216977
get_coprimes	294
get_d	3220
get_g	356639
get_gamma	303547
get_maxord	813432
get_modpr	137753
get_module	63
get_norm	506151
get_nu	641496
get_partial_order_as_pols	509088
get_powers	161618
get_pr	416810
get_prid	939659
getprime	563789
hnf_Znproj	1084272
ideal_is1	8049
idealprimedec	1299869
idealprimedec_degrees	371
idealprimedec_galois	6552
idealprimedec_kummer	3936373
idealprimedec_limit_f	2822764
idealprimedec_limit_norm	507433
indexpartial	44095
init_m	4515199
init_norm	216946
is_uniformizer	506144
lift_to_zk	93673
loop	238775
manage_cache	706433
maxord	1539104
maxord_disc	711236
maxord_i	455118
minval	3776
mk_pr	4397020
modpr_TAU	4050750
modpr_genFq	4508
modprinit	1212812
mul_intersect	712638
mycaract	706483
newtoncharpoly	699629
newtonsums	706494
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	12922460
nf_to_Fq_i	14189598
nf_to_Fq_init	4049479
nfbasis	938
nfcompositum	13534
nfcompositum_lambda	511
nfdisc	66464
nfdiscfactors	644778
nfidealdet1	63
nfisintegral	32235
nfmaxord	102199
nfmaxord_check_args	813443
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916409
p_is_prime	2211
pol_min	118992
polcompositum0	12981
poldiscfactors	42
poldiscfactors_i	788796
pow_ei_mod_p	748787
pr_anti_uniformizer	1006043
pr_factorback	4277
pr_factorback_scal	4277
pradical	216972
primedec_aux	2829665
primedec_end	216978
progress	394623
redelt	48560
redelt_i	64392
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	746920
set_disc	813398
split_char	480686
sqr_mod	831387
testb2	67247
testc2	48560
to_ff_init	4083584
triv_order	1513
uniformizer	300135
update_den	3571992
update_fact	2439
update_phi	276618
vstar	624507
zk_to_Fq	6521709
zk_to_Fq_init	34111
zkmodprinit	175411
zx_z_div	1533345

Generated by: LCOV version 1.16