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 30359-47f31365a1) Lines: 1696 1845 91.9 % Date: 2025-06-29 09:21:56 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_invgen	5894906
Q_nffactor	28496
Q_to_famat	197119
RM_round_maxrank	98077
ZM_famat_limit	568159
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	18261218
Z_to_famat	376315
_idealaddtoone	803353
_idealmulred	28571
_idealsqrred	35651
_mul	11364
_sqr	35651
addmul_mat	66626
append	151941
chk_vdir	21
err_divexact	7
ext_inv	20375
ext_mul	60734
ext_pow	0
ext_sqr	33873
factorbackprime	75586
famatV_factorback	13765
famatV_zv_factorback	56273
famat_Z_gcd	0
famat_add	158578
famat_div	200136
famat_div_shallow	10304
famat_idealfactor	0
famat_inv	199318
famat_inv_shallow	26946
famat_makecoprime	2218673
famat_mul	447386
famat_mul_shallow	224848
famat_mulpow_shallow	88232
famat_mulpows_shallow	147572
famat_pow	60642
famat_pow_shallow	61959
famat_pows_shallow	152002
famat_reduce	304104
famat_remove_trivial	66930
famat_sqr	22925
famat_sub	20933
famat_to_Fp_coprime	693
famat_to_nf	0
famat_to_nf_moddivisor	18606
famatsmall_reduce	188300
get_random_a	117651
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	293961
idealHNF_factor	240089
idealHNF_factor_i	293962
idealHNF_inv	69849
idealHNF_inv_Z	211871
idealHNF_mul	473147
idealHNF_mul_two	970286
idealHNF_norm_pval	4100967
idealHNF_val	4238506
idealadd	83529
idealaddmultoone	35
idealaddtoone	98
idealaddtoone0	70
idealaddtoone_i	17633
idealaddtoone_raw	785725
idealappr	14
idealappr0	14
idealapprfact	0
idealapprfact_i	54096
idealcoprime	84
idealcoprimefact	37191
idealdiv	39716
idealdiv0	56
idealdivexact	5214
idealdivpowprime	13007
idealdown	3031
idealfactor	268278
idealfactor_limit	268711
idealfactor_partial	25515
idealhnf	665
idealhnf0	413
idealhnf_principal	1389565
idealhnf_shallow	1853723
idealhnf_two	802025
idealintersect	21
idealinv	115779
idealismaximal	77
idealismaximal_i	77
idealismaximal_int	42
idealismaximal_mat	21
idealispower	3899
idealmin	7
idealmul	511768
idealmul0	70
idealmul_aux	511769
idealmulelt	266235
idealmulpowprime	824863
idealmulred	17207
idealnorm	105161
idealnumden	389714
idealpow	941396
idealpow0	2499
idealpow_aux	941401
idealpowprime	1305248
idealpowred	80178
idealpows	313250
idealprod	1064
idealprodprime	666
idealprodval	1917
idealpseudomin	142406
idealpseudomin_nonscalar	0
idealpseudominvec	1250412
idealpseudored	1342317
idealred0	138531
idealred_elt	13394
idealredmodpower	59183
idealredmodpower_i	118355
idealsqr	39137
idealsqr_aux	39137
idealsqrprime	317297
idealsqrtn_int	7742
idealtwoelt	97565
idealtwoelt0	2485
idealtwoelt2	42
idealtyp	16215127
idealval	9476478
in_ideal	28
isideal	91
lcmuu	1636302
make_integral	10920
mat_ideal_two_elt	250497
mat_ideal_two_elt2	21
matreduce	63
nfV_eltembed	84
nfV_idealhnf	84
nf_coprime_part	126
nf_get_Gtwist	138538
nf_get_Gtwist1	12597
nf_remove_denom_p	4364693
nf_to_Fp_coprime	119854
nfdivmodpr	0
nfkermodpr	0
nfmulmodpr	7
nfpowmodpr	0
nfsolvemodpr	0
nfweilheight	84
nfweilheight_i	84
not_in_ideal	14
ok_elt	224967
p_makecoprime	94885
prV_e_muls	28492
prV_lcm_capZ	80934
prV_primes	66234
pr_hnf	3798554
pr_inv	17829
pr_inv_p	38477
pr_uniformizer	58444
ramified_root	7735
ramified_root_simple	7
sunits_makecoprime	98
to_Fp_coprime	123032
to_famat	0
to_famat_shallow	2765803
trivial_merge	28
twistG	12639
u_ppo	54289556
vec_mulid	91
vecdiv	903
vecinv	826
vecmul	16002896
vecpow	0
vecsqr	185983
zk_pvalrem	4318903

Generated by: LCOV version 1.16