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 30590-f14e077362) Lines: 2080 2301 90.4 % Date: 2026-01-02 09:20:44 Functions: 218 233 93.6 % Legend: Lines: hit not hit

Function Name	Hit count
ECP_psi	837
Fl_2gener_pre	188814
Fl_2gener_pre_i	65849
Fl_2powu	4358542
Fl_2powu_pre	12897424
Fl_lgener_pre_all	147025
Fl_log	132360
Fl_log_Fp	0
Fl_log_naive	132360
Fl_log_naive_pre	28958
Fl_log_pre	29356
Fl_order	546540
Fl_powers	296050
Fl_powers_pre	13059045
Fl_powu	141295045
Fl_powu_pre	165923049
Fl_sqrt	12404793
Fl_sqrt_i	12526369
Fl_sqrt_pre	23347668
Fl_sqrt_pre_i	35945281
Fl_sqrtl	0
Fl_sqrtl_pre	229978
Fl_sqrtl_raw	232939
Fl_sqrtn	233412
Fl_sqrtn_pre	233412
FpV_prod	497
Fp_2gener	3222
Fp_2gener_all	5908
Fp_2gener_i	19392
Fp_easylog	8819398
Fp_factored_order	70
Fp_gausssum	351
Fp_invgen	6090264
Fp_invmBarrett	14036
Fp_log	4259583
Fp_log_find_ind	126
Fp_log_find_rel	126
Fp_log_halfgcd	56425
Fp_log_index	63
Fp_log_sieve	63
Fp_log_sieve_worker	30259
Fp_log_use_index	5039774
Fp_order	136408
Fp_pow	37752763
Fp_pow_init	105
Fp_pow_table	43694
Fp_powers	5931
Fp_pows	1346203
Fp_powu	1754381
Fp_rem_mBarrett	8296561
Fp_rootsof1	820
Fp_select_red	869524
Fp_sqrt	4844540
Fp_sqrt_i	4898190
Fp_sqrt_ii	75171
Fp_sqrtn	173541
Fp_sqrts	18949
Qsfcont	3137414
ZMV_producttree	0
ZM_nv_mod_tree	215396
ZM_nv_mod_tree_t	220852
ZT_sqr	13610585
ZVV_nv_mod_tree	5457
ZV_allpnqn	894831
ZV_chinese	5141
ZV_chinese_center	157113
ZV_chinese_tree	40701085
ZV_chinesetree	2630740
ZV_invdivexact	2630769
ZV_nv_mod_tree	1234651
ZV_producttree	2634688
ZV_sqr	2630794
ZXC_nv_mod_tree	5634
ZXM_nv_mod_tree	491
ZXX_nv_mod_tree	254472
ZX_nv_mod_tree	3097518
Z_ZV_mod	0
Z_ZV_mod_tree	58105095
Z_chinese	2142
Z_chinese_all	268092
Z_chinese_coprime	544994
Z_chinese_post	3070636
Z_chinese_pre	271815
Z_factor_listP	350651
Z_nv_mod	0
Zp_order	70
_Fp_add	1175498
_Fp_equal0	260711
_Fp_inv	34301
_Fp_mul	14228520
_Fp_neg	1086813
_Fp_one	47162
_Fp_pow	28603233
_Fp_rand	160
_Fp_red	889818
_Fp_rmul	575252
_Fp_s	19073
_Fp_sqr	8134253
_computeG	837
_gc_upto	112
_mul2_montred	9351030
_mul2_remii	3539801
_mul2_remiibar	1797854
_mul_montred	6662236
_mul_remii	1475712
_mul_remiibar	717268
_psi	1714
_sqr_montred	63003869
_sqr_remii	23471407
_sqr_remiibar	7579293
addifsmooth1	2163
addifsmooth2	83825
bestappr	105464
bestapprPade	119
bestapprPade0	126
bestappr_Q	2279264
bestappr_RgX	119
bestappr_frac	7
bestappr_real	1264717
bestappr_ser	98
check_kernel	63
checkp	2569630
chinese	5495
chinese1	2415
chinese1_coprime_Z	2460683
chinese1_coprime_Z_aux	2253539
compute_nbgen	63
contfrac0	49
contfracpnqn	266
err_oo	56
err_p	161
err_prec	196
factorial_Fl	56786
factorial_Fp	186
fibo	7
gboundcf	3142391
gc_chinese	980314
gc_empty	42
gcf	126
gcf2	0
gen_chinese	2463098
gener_Zp	259
get_Fp_field	6961
get_PHI	98
gome	5846406
hilbert	62314
hilbertii	140826
icopy_lg	3137064
init_montdata	661599
intmod2polmod	21
is_gener_Fl	1662279
is_gener_Fp	13982
is_gener_expo	4909
istotient	70000
istotient_i	621565
krois	40089
kroiu	27623548
kronecker	12750925
krosi	159682
kross	100335610
kroui	35707
krouodd	195389
krouu	102532659
krouu_s	235316062
lcmii	54522306
lift_intmod	420
lift_padic	210
lucas	56
mod_to_frac	42
mod_to_rfrac	112
mpfact	498569
mphilbertoo	7329
mpprimorial	105
muls_interval	595
mulu_interval	159073
mulu_interval_step	92809
ncV_chinese_center	10333
ncV_chinese_center_tree	5457
ncV_polint_center_tree	1512276
nmV_chinese_center	378308
nmV_chinese_center_tree	0
nmV_chinese_center_tree_seq	120428
nmV_polint_center_tree	378308
nmV_polint_center_tree_seq	120428
nmV_polint_center_tree_worker	973041
nonsquare1_Fl	12029045
nonsquare_Fl	7930
nonsquare_Fp	1458
nxCV_chinese_center	0
nxCV_chinese_center_tree	0
nxCV_polint_center_tree	6584
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	1224
nxV_chinese_center	429316
nxV_chinese_center_tree	303795
nxV_polint_center_tree	875517
odd_prime_divisors	1812
ome	334333297
opt_param	63
padic2mod	21
pgener_Fl	574882
pgener_Fl_local	1080936
pgener_Fp	44282
pgener_Fp_local	412305
pgener_Zl	205549
pgener_Zp	170793
pnqn	0
polint_chinese	378412
remove2	1812
rootsof1_Fl	215523
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	1886342
tr	59731
u_chinese_coprime	1636687
u_chinese_post	1636712
u_is_gener_expo	544950
u_odd_prime_divisors	463913
u_remove2	463912
znlog	238
znlog_rec	126
znorder	63
znprimroot	329

Generated by: LCOV version 1.16