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 30702-bddb8d6928) Lines: 2227 2369 94.0 % Date: 2026-02-23 02:23:56 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	6
rnfhnfbasis	6
rnfisfree	6
rnfdet	10
FqX_non_root	15
rnfbasis	16
rnfsteinitz	22
gen_if_principal	28
RgV_nffix	35
poldiscfactors	36
nfidealdet1	47
get_module	48
rnfdiscf	59
nfmodprinit0	66
nfmodprlift	66
rnfdedekind	66
compositum	74
QXQV_to_FpM	163
Z_fac	165
checkmodpr	180
nfreducemodpr	180
get_coprimes	231
nfmodpr	300
idealprimedec_degrees	318
fix_PE	412
nfcompositum_lambda	438
ZpX_monic_factor	451
expo_is_squarefree	717
rnfdisc_factored	722
ZpX_round4	736
nfbasis	797
ZpX_monic_factor_squarefree	934
rnfjoinmodules	1068
triv_order	1279
RgX_to_algX	1390
nfX_to_monic	1400
nfM_to_FqM	1510
rnfjoinmodules_i	1682
p_is_prime	1718
update_fact	1955
FqM_to_nfM	2358
compositum2	2431
rnfallbase	2667
get_d	2706
minval	3033
rnfmaxord	3356
fill	3364
nfX_sub	3396
_msqr	3404
rnfdedekind_i	3417
ffdegree	3516
fact_from_factors	3579
pr_factorback	3592
pr_factorback_scal	3592
modpr_genFq	3864
FpX_radical	4474
rnfeltid_powmod	4669
idealprimedec_galois	5581
nfXisintegral	6073
ideal_is1	6443
nfpolisintegral	6667
nfpolisintegral_i	6667
nfX_to_FqX	7692
FqX_to_nfX	8346
polcompositum0	10991
nfcompositum	11465
safe_Z_pvalrem	12675
_sqr	12908
nfXQ_mul	13236
nfX_rem	13236
nfX_mul	16632
compositum_fix	22742
nf_pV_to_prVV	22785
nfisintegral	26375
zk_to_Fq_init	29150
nf_pV_to_prV	33057
indexpartial	37674
redelt	41436
testc2	41436
ZX_rescale_inv	51194
redelt_i	54426
testb2	56467
nfdisc	56487
ZpX_sylvester_echelon	70236
lift_to_zk	80233
diag_denom	85081
nfmaxord	86833
pol_min	101220
get_modpr	118074
get_powers	137737
nfV_to_FqV	143400
zkmodprinit	149783
ZpX_disc_val	154092
get_LV	185322
init_norm	185322
pradical	185322
primedec_end	185322
fnz	185782
loop	201896
Zlx_gcd	207708
Decomp	214873
ZpX_gcd	214873
update_phi	234910
compmod	243332
get_gamma	254557
uniformizer	255677
Fp_basis	265395
RgX_nffix	280198
ei_msqr_mod	297926
get_g	299990
progress	334673
get_pr	354841
ZpM_hnfmodid	384403
maxord_i	385139
split_char	404474
idealprimedec_limit_norm	415074
QpXV_denom	429268
get_partial_order_as_pols	429268
get_norm	431517
is_uniformizer	431517
getprime	476463
dbasis	525571
vstar	528234
get_nu	541481
nfdiscfactors	552684
diag_denomval	587202
newtoncharpoly	590108
manage_cache	595787
mycaract	595787
newtonsums	595787
mul_intersect	604985
maxord_disc	609165
pow_ei_mod_p	637255
setPE	639512
poldiscfactors_i	675857
get_maxord	695998
nfmaxord_check_args	695998
set_disc	695998
sqr_mod	704133
ZpX_reduced_resultant_fast	790113
get_prid	805278
Rg_nffix	818264
ZpX_reduced_resultant	838873
pr_anti_uniformizer	861407
hnf_Znproj	927793
modprinit	1037988
idealprimedec	1109738
zx_z_div	1299747
ZX_Dedekind	1304221
maxord	1304221
Flx_checkdeflate	1357355
Flx_radical	1357355
QpX_remove_denom	1473628
QpX_denom	2308147
idealprimedec_limit_f	2391255
primedec_aux	2397154
Fq_to_nf	2641913
update_den	2981013
ZpX_resultant_val	3026306
ZpX_resultant_val_i	3061978
idealprimedec_kummer	3338260
nf_to_Fq_init	3443041
modpr_TAU	3443994
to_ff_init	3472191
mk_pr	3731261
init_m	3816419
Zlx_sylvester_echelon	4045488
ok_modpr	4186047
zk_to_Fq	5568322
nf_to_Fq	11054948
gc_nf_to_Fq	12112653
nf_to_Fq_i	12113085
checkprid	15601850
checkprid_i	20065907

Generated by: LCOV version 1.16