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 - base4.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30316-0578a48613) Lines: 1696 1845 91.9 % Date: 2025-06-04 09:19:51 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Z_dcba_rec	0
Z_ppgle	0
ext_pow	0
famat_Z_gcd	0
famat_idealfactor	0
famat_to_nf	0
idealHNF_Z_factor	0
idealapprfact	0
idealpseudomin_nonscalar	0
nfdivmodpr	0
nfkermodpr	0
nfpowmodpr	0
nfsolvemodpr	0
to_famat	0
vecpow	0
err_divexact	7
hnf_QC_QC	7
idealmin	7
nfmulmodpr	7
ramified_root_simple	7
idealappr	14
idealappr0	14
not_in_ideal	14
chk_vdir	21
hnf_Q_Q	21
idealintersect	21
idealismaximal_mat	21
mat_ideal_two_elt2	21
ZV_cba	28
in_ideal	28
trivial_merge	28
idealaddmultoone	35
idealismaximal_int	42
idealtwoelt2	42
ZV_cba_extend	49
idealdiv0	56
matreduce	63
hnf_Z_QC	70
idealaddtoone0	70
idealmul0	70
hnf_Q_QC	77
hnf_Z_ZC	77
idealismaximal	77
idealismaximal_i	77
idealcoprime	84
nfV_eltembed	84
nfV_idealhnf	84
nfweilheight	84
nfweilheight_i	84
isideal	91
vec_mulid	91
idealaddtoone	98
sunits_makecoprime	98
nf_coprime_part	126
gpidealfactor	189
idealhnf0	413
idealhnf	665
idealprodprime	666
famat_to_Fp_coprime	693
vecinv	826
idealprod	840
vecdiv	903
idealprodval	1917
idealtwoelt0	2485
idealpow0	2499
idealdown	3031
idealispower	3899
idealdivexact	5214
gpidealval	7119
ramified_root	7735
idealsqrtn_int	7742
famat_div_shallow	10304
make_integral	10920
_mul	11370
nf_get_Gtwist1	12597
twistG	12639
idealdivpowprime	13007
idealred_elt	13231
famatV_factorback	13765
idealmulred	17207
idealaddtoone_i	17633
pr_inv	17842
famat_to_nf_moddivisor	18606
ext_inv	20387
famat_sub	20939
famat_sqr	22923
idealfactor_partial	25515
famat_inv_shallow	26945
prV_e_muls	28482
Q_nffactor	28483
_idealmulred	28577
ext_sqr	33871
_idealsqrred	35656
_sqr	35656
idealcoprimefact	37189
pr_inv_p	38473
idealsqr	38918
idealsqr_aux	38918
idealdiv	39492
famatV_zv_factorback	46711
idealredmodpower	49399
idealapprfact_i	54089
famat_remove_trivial	55464
pr_uniformizer	58392
famat_pow	60642
ext_mul	60736
prV_primes	61453
famat_pow_shallow	61964
factorbackprime	63025
addmul_mat	65634
idealHNF_inv	68952
idealpowred	80186
prV_lcm_capZ	80927
idealadd	82640
famat_mulpow_shallow	88237
p_makecoprime	94846
idealtwoelt	97166
RM_round_maxrank	97678
idealredmodpower_i	98784
idealnorm	105161
idealinv	114895
get_random_a	117322
famat_mulpows_shallow	118438
nf_to_Fp_coprime	119840
to_Fp_coprime	123018
famat_pows_shallow	123085
idealred0	138555
nf_get_Gtwist	138562
idealpseudomin	142266
append	151937
famat_add	158587
famatsmall_reduce	179739
vecsqr	185983
Q_to_famat	197129
famat_inv	199341
famat_div	200153
famat_mul_shallow	200743
idealHNF_inv_Z	210445
ok_elt	223675
idealHNF_factor	240080
mat_ideal_two_elt	250119
idealmulelt	265339
idealfactor	268263
idealfactor_limit	268688
idealpows	274949
idealsqrprime	285693
idealHNF_Z_factor_i	285909
idealHNF_factor_i	285909
famat_reduce	294542
Z_to_famat	376336
idealnumden	379921
Z_cba	413007
famat_mul	447411
idealHNF_mul	470394
idealmul	507524
idealmul_aux	507524
Z_ppio	532903
ZM_famat_limit	568159
idealaddtoone_raw	713472
_idealaddtoone	731104
idealhnf_two	739940
idealmulpowprime	769611
idealpow	889940
idealpow_aux	889942
idealHNF_mul_two	923655
idealpowprime	1198581
idealpseudominvec	1204257
idealpseudored	1286134
idealhnf_principal	1311420
lcmuu	1586936
idealhnf_shallow	1722156
famat_makecoprime	2005942
to_famat_shallow	2688562
pr_hnf	3580316
Z_cba_rec	3766441
idealHNF_norm_pval	4041976
zk_pvalrem	4095302
nf_remove_denom_p	4141101
idealHNF_val	4177402
Fl_invgen	5697091
idealval	9395084
idealtyp	15848239
vecmul	16006587
Z_ppo	18151629
u_ppo	54204928

Generated by: LCOV version 1.16