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
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	13225
famatV_factorback	13765
idealmulred	17207
idealaddtoone_i	17633
pr_inv	17843
famat_to_nf_moddivisor	18606
ext_inv	20388
famat_sub	20929
famat_sqr	22923
idealfactor_partial	25515
famat_inv_shallow	26946
prV_e_muls	28454
Q_nffactor	28479
_idealmulred	28577
ext_sqr	33871
_idealsqrred	35656
_sqr	35656
idealcoprimefact	37190
pr_inv_p	38472
idealsqr	38918
idealsqr_aux	38918
idealdiv	39492
famatV_zv_factorback	46711
idealredmodpower	49399
idealapprfact_i	54089
famat_remove_trivial	55464
pr_uniformizer	58388
famat_pow	60642
ext_mul	60738
prV_primes	61452
famat_pow_shallow	61959
factorbackprime	63021
addmul_mat	65502
idealHNF_inv	68952
idealpowred	80186
prV_lcm_capZ	80927
idealadd	82640
famat_mulpow_shallow	88232
p_makecoprime	94848
idealtwoelt	97166
RM_round_maxrank	97678
idealredmodpower_i	98782
idealnorm	105161
idealinv	114896
get_random_a	117322
famat_mulpows_shallow	118436
nf_to_Fp_coprime	119840
to_Fp_coprime	123018
famat_pows_shallow	123069
idealred0	138558
nf_get_Gtwist	138565
idealpseudomin	142262
append	151937
famat_add	158589
famatsmall_reduce	179743
vecsqr	185983
Q_to_famat	197120
famat_inv	199344
famat_div	200145
famat_mul_shallow	200732
idealHNF_inv_Z	210440
ok_elt	223611
idealHNF_factor	240081
mat_ideal_two_elt	250117
idealmulelt	265339
idealfactor	268259
idealfactor_limit	268678
idealpows	274953
idealsqrprime	285727
idealHNF_factor_i	285906
idealHNF_Z_factor_i	285908
famat_reduce	294540
Z_to_famat	376329
idealnumden	379914
Z_cba	413007
famat_mul	447406
idealHNF_mul	470512
idealmul	507527
idealmul_aux	507527
Z_ppio	532903
ZM_famat_limit	568160
idealaddtoone_raw	713469
_idealaddtoone	731102
idealhnf_two	740050
idealmulpowprime	769739
idealpow	890041
idealpow_aux	890044
idealHNF_mul_two	923911
idealpowprime	1198772
idealpseudominvec	1204260
idealpseudored	1286138
idealhnf_principal	1311415
lcmuu	1587271
idealhnf_shallow	1722152
famat_makecoprime	2005940
to_famat_shallow	2688538
pr_hnf	3580281
Z_cba_rec	3766441
idealHNF_norm_pval	4042256
zk_pvalrem	4095361
nf_remove_denom_p	4141158
idealHNF_val	4177667
Fl_invgen	5697957
idealval	9395380
idealtyp	15848655
vecmul	15995505
Z_ppo	18151799
u_ppo	54207164

Generated by: LCOV version 1.16