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

Generated by: LCOV version 1.16