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: 2025-06-02 09:19:41 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	11371
nf_get_Gtwist1	12597
twistG	12639
idealdivpowprime	13007
idealred_elt	13232
famatV_factorback	13765
idealmulred	17207
idealaddtoone_i	17633
pr_inv	17848
famat_to_nf_moddivisor	18606
ext_inv	20394
famat_sub	20936
famat_sqr	22925
idealfactor_partial	25515
famat_inv_shallow	26945
prV_e_muls	28467
Q_nffactor	28474
_idealmulred	28578
ext_sqr	33873
_idealsqrred	35658
_sqr	35658
idealcoprimefact	37191
pr_inv_p	38468
idealsqr	38920
idealsqr_aux	38920
idealdiv	39492
famatV_zv_factorback	46711
idealredmodpower	49398
idealapprfact_i	54089
famat_remove_trivial	55463
pr_uniformizer	58392
famat_pow	60642
ext_mul	60746
prV_primes	61452
famat_pow_shallow	61963
factorbackprime	63024
addmul_mat	65590
idealHNF_inv	68953
idealpowred	80189
prV_lcm_capZ	80927
idealadd	82640
famat_mulpow_shallow	88236
p_makecoprime	94842
idealtwoelt	97166
RM_round_maxrank	97678
idealredmodpower_i	98784
idealnorm	105161
idealinv	114902
get_random_a	117322
famat_mulpows_shallow	118437
nf_to_Fp_coprime	119840
to_Fp_coprime	123018
famat_pows_shallow	123081
idealred0	138565
nf_get_Gtwist	138571
idealpseudomin	142276
append	151942
famat_add	158597
famatsmall_reduce	179745
vecsqr	185983
Q_to_famat	197128
famat_inv	199348
famat_div	200150
famat_mul_shallow	200747
idealHNF_inv_Z	210459
ok_elt	223654
idealHNF_factor	240080
mat_ideal_two_elt	250121
idealmulelt	265338
idealfactor	268249
idealfactor_limit	268676
idealpows	274958
idealsqrprime	285719
idealHNF_factor_i	285915
idealHNF_Z_factor_i	285916
famat_reduce	294539
Z_to_famat	376335
idealnumden	379912
Z_cba	413007
famat_mul	447419
idealHNF_mul	470442
idealmul	507533
idealmul_aux	507533
Z_ppio	532903
ZM_famat_limit	568159
idealaddtoone_raw	713474
_idealaddtoone	731108
idealhnf_two	739997
idealmulpowprime	769715
idealpow_aux	889984
idealpow	889986
idealHNF_mul_two	923839
idealpowprime	1198682
idealpseudominvec	1204256
idealpseudored	1286136
idealhnf_principal	1311415
lcmuu	1587181
idealhnf_shallow	1722156
famat_makecoprime	2005930
to_famat_shallow	2688561
pr_hnf	3580275
Z_cba_rec	3766441
idealHNF_norm_pval	4042148
zk_pvalrem	4095290
nf_remove_denom_p	4141092
idealHNF_val	4177581
Fl_invgen	5697669
idealval	9395387
idealtyp	15848720
vecmul	16015676
Z_ppo	18151726
u_ppo	54205290

Generated by: LCOV version 1.16