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 30107-5d3c5ac62a) Lines: 1697 1846 91.9 % Date: 2025-04-01 09:20:36 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_invgen	5717981
Q_nffactor	28468
Q_to_famat	197121
RM_round_maxrank	97622
ZM_famat_limit	568110
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	18150438
Z_to_famat	376328
_idealaddtoone	730840
_idealmulred	28563
_idealsqrred	35646
_mul	11356
_sqr	35646
addmul_mat	65835
append	151942
chk_vdir	21
err_divexact	7
ext_inv	20379
ext_mul	60736
ext_pow	0
ext_sqr	33875
factorbackprime	62402
famatV_factorback	13765
famatV_zv_factorback	46711
famat_Z_gcd	0
famat_add	158580
famat_div	200150
famat_div_shallow	10304
famat_idealfactor	0
famat_inv	199333
famat_inv_shallow	26973
famat_makecoprime	2002983
famat_mul	447402
famat_mul_shallow	200791
famat_mulpow_shallow	88286
famat_mulpows_shallow	118438
famat_pow	60642
famat_pow_shallow	62013
famat_pows_shallow	123092
famat_reduce	296087
famat_remove_trivial	53777
famat_sqr	22927
famat_sub	20936
famat_to_Fp_coprime	693
famat_to_nf	0
famat_to_nf_moddivisor	20118
famatsmall_reduce	179096
get_random_a	117287
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	285858
idealHNF_factor	240048
idealHNF_factor_i	285858
idealHNF_inv	68849
idealHNF_inv_Z	210336
idealHNF_mul	470126
idealHNF_mul_two	923483
idealHNF_norm_pval	4041706
idealHNF_val	4177171
idealadd	82192
idealaddmultoone	35
idealaddtoone	98
idealaddtoone0	70
idealaddtoone_i	17626
idealaddtoone_raw	713221
idealappr	14
idealappr0	14
idealapprfact	0
idealapprfact_i	54067
idealcoprime	84
idealcoprimefact	37191
idealdiv	39443
idealdiv0	56
idealdivexact	5214
idealdivpowprime	13007
idealdown	3031
idealfactor	268210
idealfactor_limit	268637
idealfactor_partial	25501
idealhnf	665
idealhnf0	413
idealhnf_principal	1310742
idealhnf_shallow	1721564
idealhnf_two	739850
idealintersect	21
idealinv	114705
idealismaximal	77
idealismaximal_i	77
idealismaximal_int	42
idealismaximal_mat	21
idealispower	3899
idealmin	7
idealmul	507239
idealmul0	70
idealmul_aux	507239
idealmulelt	265338
idealmulpowprime	769180
idealmulred	17207
idealnorm	104937
idealnumden	379869
idealpow	890030
idealpow0	2499
idealpow_aux	890029
idealpowprime	1198528
idealpowred	80209
idealpows	274487
idealprod	840
idealprodprime	666
idealprodval	1889
idealpseudomin	142268
idealpseudomin_nonscalar	0
idealpseudominvec	1204259
idealpseudored	1286011
idealred0	138584
idealred_elt	13205
idealredmodpower	49385
idealredmodpower_i	98755
idealsqr	38908
idealsqr_aux	38908
idealsqrprime	285726
idealsqrtn_int	7742
idealtwoelt	97110
idealtwoelt0	2485
idealtwoelt2	42
idealtyp	15843587
idealval	9394524
in_ideal	28
isideal	91
lcmuu	1590009
make_integral	10920
mat_ideal_two_elt	249988
mat_ideal_two_elt2	21
matreduce	63
nfV_eltembed	84
nfV_idealhnf	84
nf_coprime_part	126
nf_get_Gtwist	138591
nf_get_Gtwist1	12597
nf_remove_denom_p	4137890
nf_to_Fp_coprime	119867
nfdivmodpr	0
nfkermodpr	0
nfmulmodpr	7
nfpowmodpr	0
nfsolvemodpr	0
nfweilheight	84
nfweilheight_i	84
not_in_ideal	14
ok_elt	223657
p_makecoprime	94833
prV_e_muls	28436
prV_lcm_capZ	82025
prV_primes	61439
pr_hnf	3579335
pr_inv	17831
pr_inv_p	38448
pr_uniformizer	58337
ramified_root	7735
ramified_root_simple	7
sunits_makecoprime	98
to_Fp_coprime	123045
to_famat	0
to_famat_shallow	2688446
trivial_merge	28
twistG	12639
u_ppo	54223872
vec_mulid	91
vecdiv	903
vecinv	826
vecmul	16003583
vecpow	0
vecsqr	185983
zk_pvalrem	4092095

Generated by: LCOV version 1.16