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 - arith1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30582-6e9af8ee1d) Lines: 2080 2301 90.4 % Date: 2025-12-20 09:23:49 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_log_Fp	0
Fl_sqrtl	0
ZMV_producttree	0
Z_ZV_mod	0
Z_nv_mod	0
gcf2	0
nmV_chinese_center_tree	0
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
pnqn	0
rootsof1_Fp	0
sersfcont	0
sqrt_Cipolla	0
sqrt_Cipolla_msqr	0
sqrt_Cipolla_sqr	0
bestappr_frac	7
fibo	7
sfcont2	14
intmod2polmod	21
padic2mod	21
gc_empty	42
mod_to_frac	42
contfrac0	49
serPade	49
err_oo	56
lucas	56
Fp_log_index	63
Fp_log_sieve	63
check_kernel	63
compute_nbgen	63
opt_param	63
znorder	63
Fp_factored_order	70
Zp_order	70
bestappr_ser	98
get_PHI	98
nxMV_chinese_center	104
nxMV_polint_center_tree	104
Fp_pow_init	105
mpprimorial	105
_gc_upto	112
mod_to_rfrac	112
bestapprPade	119
bestappr_RgX	119
Fp_log_find_ind	126
Fp_log_find_rel	126
bestapprPade0	126
gcf	126
znlog_rec	126
err_p	161
factorial_Fp	186
_Fp_rand	195
err_prec	196
lift_padic	210
znlog	238
gener_Zp	259
contfracpnqn	266
znprimroot	329
Fp_gausssum	371
lift_intmod	420
ZXM_nv_mod_tree	491
nxMV_chinese_center_tree_seq	491
nxMV_polint_center_tree_seq	491
FpV_prod	497
muls_interval	595
Fp_rootsof1	805
ECP_psi	837
_computeG	837
nxMV_polint_center_tree_worker	1225
nonsquare_Fp	1497
_psi	1714
odd_prime_divisors	1812
remove2	1812
Z_chinese	2142
addifsmooth1	2163
chinese1	2415
rootsof1u_Fp	3033
Fp_2gener	3299
is_gener_expo	4909
ZV_chinese	5141
ZVV_nv_mod_tree	5457
ncV_chinese_center_tree	5457
chinese	5495
ZXC_nv_mod_tree	5634
Fp_2gener_all	5916
Fp_powers	5931
nxCV_polint_center_tree	6585
get_Fp_field	6963
mphilbertoo	7329
nonsquare_Fl	7930
ncV_chinese_center	10585
is_gener_Fp	13965
Fp_invmBarrett	15502
Fp_sqrts	18729
_Fp_s	19075
Fp_2gener_i	19392
Fl_log_naive_pre	29717
Fl_log_pre	30115
Fp_log_sieve_worker	30252
_Fp_inv	34307
kroui	35758
krois	40089
Fp_pow_table	43694
pgener_Fp	44282
_Fp_one	47162
Fp_log_halfgcd	56784
factorial_Fl	56815
tr	59731
hilbert	62314
Fl_2gener_pre_i	65765
istotient	70000
Fp_sqrt_ii	80203
addifsmooth2	83825
mulu_interval_step	92761
bestappr	105489
nmV_polint_center_tree_seq	120506
nmV_chinese_center_tree_seq	120507
Fl_log	132488
Fl_log_naive	132488
Fp_order	136596
hilbertii	140826
Fl_lgener_pre_all	149519
ZV_chinese_center	157359
mulu_interval	159074
krosi	159682
rt	169813
pgener_Zp	170800
Fp_sqrtn	173555
krouodd	195440
Fl_2gener_pre	196634
pgener_Zl	205556
ZM_nv_mod_tree	215475
rootsof1_Fl	215543
ZM_nv_mod_tree_t	220932
Fl_sqrtn	233408
Fl_sqrtn_pre	233409
Fl_sqrtl_pre	235114
Fl_sqrtl_raw	238074
ZXX_nv_mod_tree	254897
_Fp_equal0	260724
Z_chinese_all	268103
Z_chinese_pre	271826
Fl_powers	296064
nxV_chinese_center_tree	304302
Z_factor_listP	350651
nmV_chinese_center	378612
nmV_polint_center_tree	378612
polint_chinese	378716
pgener_Fp_local	412299
nxV_chinese_center	429461
u_remove2	463945
u_odd_prime_divisors	463946
mpfact	498580
u_is_gener_expo	544967
Z_chinese_coprime	545412
Fl_order	546562
pgener_Fl	574909
_Fp_rmul	575346
istotient_i	621565
init_montdata	667706
_mul_remiibar	839340
nxV_polint_center_tree	876112
Fp_select_red	880259
_Fp_red	889913
ZV_allpnqn	894831
nmV_polint_center_tree_worker	975799
gc_chinese	981262
pgener_Fl_local	1080977
_Fp_neg	1086846
_Fp_add	1175565
ZV_nv_mod_tree	1235332
bestappr_real	1272941
Fp_pows	1346203
ncV_polint_center_tree	1515766
u_chinese_coprime	1638923
u_chinese_post	1638931
is_gener_Fl	1662321
Fp_powu	1755466
_mul_remii	1771253
to_ZX	1891410
_mul2_remiibar	2129440
chinese1_coprime_Z_aux	2253539
bestappr_Q	2289928
chinese1_coprime_Z	2460630
gen_chinese	2463045
ZV_sqr	2632918
ZV_invdivexact	2632919
ZV_chinesetree	2632924
ZV_producttree	2637665
checkp	2656753
Z_chinese_post	3071059
ZX_nv_mod_tree	3104328
icopy_lg	3137064
Qsfcont	3137414
gboundcf	3142391
_mul2_remii	4246875
Fp_log	4259603
Fl_2powu	4375419
Fp_sqrt	4844429
Fp_sqrt_i	4902890
Fp_log_use_index	5039792
gome	5897681
Fp_invgen	6094539
_mul_montred	7111470
_Fp_sqr	8134253
Fp_easylog	8819495
_sqr_remiibar	8898871
Fp_rem_mBarrett	9738211
_mul2_montred	10629360
nonsquare1_Fl	12259911
Fl_sqrt	12507390
Fl_sqrt_i	12628901
kronecker	12750980
Fl_2powu_pre	12983246
Fl_powers_pre	13287430
ZT_sqr	13628991
_Fp_mul	14228551
Fl_sqrt_pre	23504271
_sqr_remii	26363986
kroiu	27627725
_Fp_pow	28603340
Fl_sqrt_pre_i	36205759
Fp_pow	37763255
ZV_chinese_tree	40745626
lcmii	54541763
Z_ZV_mod_tree	58133301
_sqr_montred	67964007
kross	102527310
krouu	102882445
Fl_powu	141494290
Fl_powu_pre	166497824
krouu_s	237855168
ome	335815000

Generated by: LCOV version 1.16