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 30318-7d854b8994) Lines: 1696 1845 91.9 % Date: 2025-06-06 09:19:58 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_invgen	5697957
Q_nffactor	28479
Q_to_famat	197120
RM_round_maxrank	97678
ZM_famat_limit	568160
ZV_cba	28
ZV_cba_extend	49
Z_cba	413007
Z_cba_rec	3766441
Z_dcba_rec	0
Z_ppgle	0
Z_ppio	532903
Z_ppo	18151799
Z_to_famat	376329
_idealaddtoone	731102
_idealmulred	28577
_idealsqrred	35656
_mul	11370
_sqr	35656
addmul_mat	65502
append	151937
chk_vdir	21
err_divexact	7
ext_inv	20388
ext_mul	60738
ext_pow	0
ext_sqr	33871
factorbackprime	63021
famatV_factorback	13765
famatV_zv_factorback	46711
famat_Z_gcd	0
famat_add	158589
famat_div	200145
famat_div_shallow	10304
famat_idealfactor	0
famat_inv	199344
famat_inv_shallow	26946
famat_makecoprime	2005940
famat_mul	447406
famat_mul_shallow	200732
famat_mulpow_shallow	88232
famat_mulpows_shallow	118436
famat_pow	60642
famat_pow_shallow	61959
famat_pows_shallow	123069
famat_reduce	294540
famat_remove_trivial	55464
famat_sqr	22923
famat_sub	20929
famat_to_Fp_coprime	693
famat_to_nf	0
famat_to_nf_moddivisor	18606
famatsmall_reduce	179743
get_random_a	117322
gpidealfactor	189
gpidealval	7119
hnf_QC_QC	7
hnf_Q_Q	21
hnf_Q_QC	77
hnf_Z_QC	70
hnf_Z_ZC	77
idealHNF_Z_factor	0
idealHNF_Z_factor_i	285908
idealHNF_factor	240081
idealHNF_factor_i	285906
idealHNF_inv	68952
idealHNF_inv_Z	210440
idealHNF_mul	470512
idealHNF_mul_two	923911
idealHNF_norm_pval	4042256
idealHNF_val	4177667
idealadd	82640
idealaddmultoone	35
idealaddtoone	98
idealaddtoone0	70
idealaddtoone_i	17633
idealaddtoone_raw	713469
idealappr	14
idealappr0	14
idealapprfact	0
idealapprfact_i	54089
idealcoprime	84
idealcoprimefact	37190
idealdiv	39492
idealdiv0	56
idealdivexact	5214
idealdivpowprime	13007
idealdown	3031
idealfactor	268259
idealfactor_limit	268678
idealfactor_partial	25515
idealhnf	665
idealhnf0	413
idealhnf_principal	1311415
idealhnf_shallow	1722152
idealhnf_two	740050
idealintersect	21
idealinv	114896
idealismaximal	77
idealismaximal_i	77
idealismaximal_int	42
idealismaximal_mat	21
idealispower	3899
idealmin	7
idealmul	507527
idealmul0	70
idealmul_aux	507527
idealmulelt	265339
idealmulpowprime	769739
idealmulred	17207
idealnorm	105161
idealnumden	379914
idealpow	890041
idealpow0	2499
idealpow_aux	890044
idealpowprime	1198772
idealpowred	80186
idealpows	274953
idealprod	840
idealprodprime	666
idealprodval	1917
idealpseudomin	142262
idealpseudomin_nonscalar	0
idealpseudominvec	1204260
idealpseudored	1286138
idealred0	138558
idealred_elt	13225
idealredmodpower	49399
idealredmodpower_i	98782
idealsqr	38918
idealsqr_aux	38918
idealsqrprime	285727
idealsqrtn_int	7742
idealtwoelt	97166
idealtwoelt0	2485
idealtwoelt2	42
idealtyp	15848655
idealval	9395380
in_ideal	28
isideal	91
lcmuu	1587271
make_integral	10920
mat_ideal_two_elt	250117
mat_ideal_two_elt2	21
matreduce	63
nfV_eltembed	84
nfV_idealhnf	84
nf_coprime_part	126
nf_get_Gtwist	138565
nf_get_Gtwist1	12597
nf_remove_denom_p	4141158
nf_to_Fp_coprime	119840
nfdivmodpr	0
nfkermodpr	0
nfmulmodpr	7
nfpowmodpr	0
nfsolvemodpr	0
nfweilheight	84
nfweilheight_i	84
not_in_ideal	14
ok_elt	223611
p_makecoprime	94848
prV_e_muls	28454
prV_lcm_capZ	80927
prV_primes	61452
pr_hnf	3580281
pr_inv	17843
pr_inv_p	38472
pr_uniformizer	58388
ramified_root	7735
ramified_root_simple	7
sunits_makecoprime	98
to_Fp_coprime	123018
to_famat	0
to_famat_shallow	2688538
trivial_merge	28
twistG	12639
u_ppo	54207164
vec_mulid	91
vecdiv	903
vecinv	826
vecmul	15995505
vecpow	0
vecsqr	185983
zk_pvalrem	4095361

Generated by: LCOV version 1.16