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 30387-12623f1693) Lines: 2228 2369 94.0 % Date: 2025-07-10 09:22:50 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	91
rnfdedekind	91
Z_fac	183
QXQV_to_FpM	203
checkmodpr	210
nfreducemodpr	210
get_coprimes	294
nfmodpr	350
idealprimedec_degrees	371
fix_PE	498
nfcompositum_lambda	511
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	1506
RgX_to_algX	1666
nfX_to_monic	1680
nfM_to_FqM	1872
rnfjoinmodules_i	2111
p_is_prime	2212
update_fact	2439
compositum2	2877
FqM_to_nfM	2934
rnfallbase	3164
get_d	3213
minval	3776
rnfmaxord	4067
ffdegree	4109
nfX_sub	4123
rnfdedekind_i	4151
_msqr	4158
fill	4222
fact_from_factors	4242
pr_factorback	4263
pr_factorback_scal	4263
modpr_genFq	4508
FpX_radical	5693
rnfeltid_powmod	5834
idealprimedec_galois	6552
nfXisintegral	7301
ideal_is1	8049
nfpolisintegral	8225
nfpolisintegral_i	8225
nfX_to_FqX	9373
FqX_to_nfX	10184
polcompositum0	12977
nfcompositum	13530
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20646
nf_pV_to_prVV	26614
compositum_fix	26832
nfisintegral	31955
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44093
redelt	48569
testc2	48569
ZX_rescale_inv	59990
redelt_i	64398
nfdisc	66464
testb2	67232
ZpX_sylvester_echelon	74048
lift_to_zk	93671
diag_denom	100531
nfmaxord	102160
pol_min	118956
get_modpr	137753
get_powers	161582
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184659
init_norm	216880
primedec_end	216906
get_LV	216907
pradical	216907
fnz	223435
loop	238771
Zlx_gcd	246307
ZpX_gcd	254830
Decomp	254834
update_phi	276620
compmod	287335
uniformizer	300037
get_gamma	303520
Fp_basis	312161
RgX_nffix	328265
ei_msqr_mod	352620
get_g	356613
progress	394629
get_pr	416645
ZpM_hnfmodid	454202
maxord_i	455098
split_char	480667
idealprimedec_limit_norm	505222
is_uniformizer	506050
get_norm	506058
QpXV_denom	509063
get_partial_order_as_pols	509065
getprime	563804
dbasis	621094
vstar	624526
get_nu	641485
nfdiscfactors	644782
diag_denomval	685883
newtoncharpoly	699607
manage_cache	706418
mycaract	706470
newtonsums	706476
maxord_disc	711238
mul_intersect	712299
setPE	746888
pow_ei_mod_p	748526
poldiscfactors_i	788773
set_disc	813352
get_maxord	813397
nfmaxord_check_args	813403
sqr_mod	830692
ZpX_reduced_resultant_fast	932281
get_prid	939491
Rg_nffix	961866
ZpX_reduced_resultant	993497
pr_anti_uniformizer	1005999
hnf_Znproj	1084174
modprinit	1212721
idealprimedec	1299779
zx_z_div	1533224
ZX_Dedekind	1538967
maxord	1538968
Flx_radical	1601628
Flx_checkdeflate	1601646
QpX_remove_denom	1743803
QpX_denom	2751245
idealprimedec_limit_f	2818653
primedec_aux	2825563
Fq_to_nf	3087275
update_den	3572057
ZpX_resultant_val	3577398
ZpX_resultant_val_i	3623568
idealprimedec_kummer	3930642
nf_to_Fq_init	4047155
modpr_TAU	4048420
to_ff_init	4081270
mk_pr	4391220
init_m	4509617
Zlx_sylvester_echelon	4797846
ok_modpr	4913902
zk_to_Fq	6521390
nf_to_Fq	12922398
gc_nf_to_Fq	14188741
nf_to_Fq_i	14189257
checkprid	18054651
checkprid_i	23289231

Generated by: LCOV version 1.16