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 30775-9d8a55740a) Lines: 2227 2369 94.0 % Date: 2026-04-05 09:26:48 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	Hit count
Decomp	254732
Flx_checkdeflate	1602289
Flx_radical	1602255
FpX_radical	5693
Fp_basis	312083
FqM_to_nfM	2934
FqV_to_nfV	0
FqX_non_root	21
FqX_to_nfX	10226
Fq_to_nf	3087512
QXQV_to_FpM	203
QpXV_denom	508866
QpX_denom	2749691
QpX_remove_denom	1742942
RgV_nffix	49
RgX_nffix	327962
RgX_to_algX	1666
Rg_nffix	960566
ZX_Dedekind	1539585
ZX_rescale_inv	59986
Z_fac	197
Zlx_gcd	246224
Zlx_sylvester_echelon	4802494
ZpM_hnfmodid	454057
ZpX_disc_val	184516
ZpX_gcd	254735
ZpX_monic_factor	546
ZpX_monic_factor_squarefree	1155
ZpX_primedec	0
ZpX_reduced_resultant	993216
ZpX_reduced_resultant_fast	932101
ZpX_resultant_val	3582518
ZpX_resultant_val_i	3628699
ZpX_round4	896
ZpX_sylvester_echelon	74166
_msqr	4158
_sqr	16190
checkmodpr	210
checkprid	18387518
checkprid_i	23626435
compmod	287174
compositum	91
compositum2	2870
compositum_fix	26677
dbasis	620934
diag_denom	100208
diag_denomval	686757
ei_msqr_mod	352880
errprime	0
expo_is_squarefree	889
fact_from_factors	4235
ffdegree	4109
fill	4222
fix_PE	512
fnz	222738
gc_nf_to_Fq	14188643
gen_if_principal	35
get_LV	216868
get_coprimes	294
get_d	3220
get_g	356415
get_gamma	303300
get_maxord	815697
get_modpr	137753
get_module	63
get_norm	505895
get_nu	641222
get_partial_order_as_pols	508867
get_powers	161540
get_pr	416563
get_prid	939988
getprime	563548
hnf_Znproj	1083912
ideal_is1	8049
idealprimedec	1299773
idealprimedec_degrees	371
idealprimedec_galois	6601
idealprimedec_kummer	3936294
idealprimedec_limit_f	2822543
idealprimedec_limit_norm	507438
indexpartial	44110
init_m	4514572
init_norm	216841
is_uniformizer	505888
lift_to_zk	93673
loop	238627
manage_cache	706071
maxord	1539589
maxord_disc	713680
maxord_i	454958
minval	3776
mk_pr	4396712
modpr_TAU	4050457
modpr_genFq	4508
modprinit	1212523
mul_intersect	712123
mycaract	706110
newtoncharpoly	699295
newtonsums	706124
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	12922020
nf_to_Fq_i	14189159
nf_to_Fq_init	4049184
nfbasis	938
nfcompositum	13452
nfcompositum_lambda	511
nfdisc	68899
nfdiscfactors	644791
nfidealdet1	63
nfisintegral	32235
nfmaxord	102032
nfmaxord_check_args	815720
nfmodpr	350
nfmodprinit	7
nfmodprinit0	77
nfmodprlift	77
nfpolisintegral	8253
nfpolisintegral_i	8253
nfreducemodpr	210
ok_modpr	4916638
p_is_prime	2205
pol_min	118917
polcompositum0	12899
poldiscfactors	42
poldiscfactors_i	791262
pow_ei_mod_p	748317
pr_anti_uniformizer	1005804
pr_factorback	4277
pr_factorback_scal	4277
pradical	216867
primedec_aux	2829490
primedec_end	216867
progress	394428
redelt	48550
redelt_i	64355
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	15029
setPE	746778
set_disc	815680
split_char	480360
sqr_mod	830953
testb2	67192
testc2	48550
to_ff_init	4083309
triv_order	1513
uniformizer	299956
update_den	3569866
update_fact	2356
update_phi	276605
vstar	624272
zk_to_Fq	6521098
zk_to_Fq_init	34111
zkmodprinit	175369
zx_z_div	1533866

Generated by: LCOV version 1.16