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:

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 30425-4669acb345) Lines: 2080 2301 90.4 %
Date: 2025-07-31 09:23:41 Functions: 218 233 93.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
ECP_psi 837
Fl_2gener_pre 193759
Fl_2gener_pre_i 65765
Fl_2powu 4359032
Fl_2powu_pre 12934454
Fl_lgener_pre_all 148222
Fl_log 132389
Fl_log_Fp 0
Fl_log_naive 132389
Fl_log_naive_pre 29027
Fl_log_pre 29425
Fl_order 542781
Fl_powers 296057
Fl_powers_pre 13105249
Fl_powu 141617010
Fl_powu_pre 165556221
Fl_sqrt 12479366
Fl_sqrt_i 12600253
Fl_sqrt_pre 22639432
Fl_sqrt_pre_i 35316859
Fl_sqrtl 0
Fl_sqrtl_pre 233616
Fl_sqrtl_raw 236457
Fl_sqrtn 232516
Fl_sqrtn_pre 232516
FpV_prod 497
Fp_2gener 3327
Fp_2gener_all 5916
Fp_2gener_i 19392
Fp_easylog 8819074
Fp_factored_order 70
Fp_gausssum 363
Fp_invgen 6087008
Fp_invmBarrett 15402
Fp_log 4259293
Fp_log_find_ind 126
Fp_log_find_rel 126
Fp_log_halfgcd 55979
Fp_log_index 63
Fp_log_sieve 63
Fp_log_sieve_worker 30245
Fp_log_use_index 5039454
Fp_order 132354
Fp_pow 37757296
Fp_pow_init 105
Fp_pow_table 43694
Fp_powers 5931
Fp_pows 1346186
Fp_powu 1754724
Fp_rem_mBarrett 9735329
Fp_rootsof1 846
Fp_select_red 880496
Fp_sqrt 4832972
Fp_sqrt_i 4891443
Fp_sqrt_ii 80248
Fp_sqrtn 173548
Fp_sqrts 18505
Qsfcont 3137414
ZMV_producttree 0
ZM_nv_mod_tree 214988
ZM_nv_mod_tree_t 220445
ZT_sqr 13592311
ZVV_nv_mod_tree 5457
ZV_allpnqn 894831
ZV_chinese 5141
ZV_chinese_center 157256
ZV_chinese_tree 40720159
ZV_chinesetree 2627350
ZV_invdivexact 2627355
ZV_nv_mod_tree 1234310
ZV_producttree 2632017
ZV_sqr 2627355
ZXC_nv_mod_tree 5634
ZXM_nv_mod_tree 491
ZXX_nv_mod_tree 254878
ZX_nv_mod_tree 3106185
Z_ZV_mod 0
Z_ZV_mod_tree 58150119
Z_chinese 2142
Z_chinese_all 267618
Z_chinese_coprime 543935
Z_chinese_post 3069066
Z_chinese_pre 271337
Z_factor_listP 350651
Z_nv_mod 0
Zp_order 70
_Fp_add 1175565
_Fp_equal0 260724
_Fp_inv 34307
_Fp_mul 14228463
_Fp_neg 1086846
_Fp_one 47162
_Fp_pow 28602623
_Fp_rand 167
_Fp_red 889913
_Fp_rmul 575346
_Fp_s 19075
_Fp_sqr 8134253
_computeG 837
_gc_upto 112
_mul2_montred 10514129
_mul2_remii 4288308
_mul2_remiibar 2115674
_mul_montred 7093672
_mul_remii 1821104
_mul_remiibar 842605
_psi 1714
_sqr_montred 67639120
_sqr_remii 26419956
_sqr_remiibar 8892724
addifsmooth1 2163
addifsmooth2 83825
bestappr 105377
bestapprPade 119
bestapprPade0 126
bestappr_Q 2277425
bestappr_RgX 119
bestappr_frac 7
bestappr_real 1264656
bestappr_ser 98
check_kernel 63
checkp 2594613
chinese 5495
chinese1 2415
chinese1_coprime_Z 2460575
chinese1_coprime_Z_aux 2253533
compute_nbgen 63
contfrac0 49
contfracpnqn 266
err_oo 56
err_p 161
err_prec 196
factorial_Fl 56824
factorial_Fp 382
fibo 7
gboundcf 3142391
gc_chinese 980286
gc_empty 42
gcf 126
gcf2 0
gen_chinese 2462990
gener_Zp 259
get_Fp_field 6963
get_PHI 98
gome 5889127
hilbert 62314
hilbertii 140826
icopy_lg 3137064
init_montdata 667571
intmod2polmod 21
is_gener_Fl 1662679
is_gener_Fp 13981
is_gener_expo 4909
istotient 70000
istotient_i 621565
krois 40089
kroiu 27626852
kronecker 12737109
krosi 159626
kross 101947418
kroui 35343
krouodd 194969
krouu 101488808
krouu_s 235865844
lcmii 54514510
lift_intmod 420
lift_padic 210
lucas 56
mod_to_frac 42
mod_to_rfrac 112
mpfact 496596
mphilbertoo 7329
mpprimorial 105
muls_interval 623
mulu_interval 159090
mulu_interval_step 90598
ncV_chinese_center 10565
ncV_chinese_center_tree 5457
ncV_polint_center_tree 1514726
nmV_chinese_center 377863
nmV_chinese_center_tree 0
nmV_chinese_center_tree_seq 120298
nmV_polint_center_tree 377863
nmV_polint_center_tree_seq 120298
nmV_polint_center_tree_worker 974642
nonsquare1_Fl 12191125
nonsquare_Fl 7930
nonsquare_Fp 1460
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 429357
nxV_chinese_center_tree 304226
nxV_polint_center_tree 876024
odd_prime_divisors 1812
ome 330884179
opt_param 63
padic2mod 21
pgener_Fl 575257
pgener_Fl_local 1081331
pgener_Fp 44275
pgener_Fp_local 412306
pgener_Zl 205745
pgener_Zp 170989
pnqn 0
polint_chinese 377967
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 1893598
tr 59731
u_chinese_coprime 1636880
u_chinese_post 1636887
u_is_gener_expo 545150
u_odd_prime_divisors 464142
u_remove2 464143
znlog 238
znlog_rec 126
znorder 63
znprimroot 329

Generated by: LCOV version 1.16