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 30365-beea1ff998) Lines: 2080 2301 90.4 %
Date: 2025-07-02 09:21:24 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 193903
Fl_2gener_pre_i 65765
Fl_2powu 4358666
Fl_2powu_pre 12677960
Fl_lgener_pre_all 147359
Fl_log 132390
Fl_log_Fp 0
Fl_log_naive 132390
Fl_log_naive_pre 28240
Fl_log_pre 28638
Fl_order 542782
Fl_powers 296057
Fl_powers_pre 13156113
Fl_powu 141641560
Fl_powu_pre 153595484
Fl_sqrt 12412708
Fl_sqrt_i 12533537
Fl_sqrt_pre 22696265
Fl_sqrt_pre_i 35301544
Fl_sqrtl 0
Fl_sqrtl_pre 231234
Fl_sqrtl_raw 234075
Fl_sqrtn 232513
Fl_sqrtn_pre 232514
FpV_prod 497
Fp_2gener 3327
Fp_2gener_all 5916
Fp_2gener_i 19392
Fp_easylog 8819027
Fp_factored_order 70
Fp_gausssum 363
Fp_invgen 6086862
Fp_invmBarrett 15391
Fp_log 4259275
Fp_log_find_ind 126
Fp_log_find_rel 126
Fp_log_halfgcd 56289
Fp_log_index 63
Fp_log_sieve 63
Fp_log_sieve_worker 30246
Fp_log_use_index 5039416
Fp_order 132355
Fp_pow 37757028
Fp_pow_init 105
Fp_pow_table 43694
Fp_powers 5931
Fp_pows 1346198
Fp_powu 1754732
Fp_rem_mBarrett 9723222
Fp_rootsof1 846
Fp_select_red 880472
Fp_sqrt 4832942
Fp_sqrt_i 4891408
Fp_sqrt_ii 80230
Fp_sqrtn 173548
Fp_sqrts 18505
Qsfcont 3137344
ZMV_producttree 0
ZM_nv_mod_tree 236950
ZM_nv_mod_tree_t 242407
ZT_sqr 13472883
ZVV_nv_mod_tree 5457
ZV_allpnqn 894782
ZV_chinese 5141
ZV_chinese_center 157261
ZV_chinese_tree 40332688
ZV_chinesetree 2604064
ZV_invdivexact 2604062
ZV_nv_mod_tree 1278253
ZV_producttree 2608727
ZV_sqr 2604063
ZXC_nv_mod_tree 5634
ZXM_nv_mod_tree 491
ZXX_nv_mod_tree 86888
ZX_nv_mod_tree 2451798
Z_ZV_mod 0
Z_ZV_mod_tree 57507575
Z_chinese 2142
Z_chinese_all 267623
Z_chinese_coprime 544220
Z_chinese_post 3069354
Z_chinese_pre 271341
Z_factor_listP 350651
Z_nv_mod 0
Zp_order 70
_Fp_add 1175565
_Fp_equal0 260724
_Fp_inv 34307
_Fp_mul 14228260
_Fp_neg 1086846
_Fp_one 47162
_Fp_pow 28602486
_Fp_rand 167
_Fp_red 889913
_Fp_rmul 575346
_Fp_s 19075
_Fp_sqr 8134253
_computeG 837
_gc_upto 112
_mul2_montred 10512297
_mul2_remii 4279710
_mul2_remiibar 2110968
_mul_montred 7092201
_mul_remii 1816865
_mul_remiibar 842213
_psi 1714
_sqr_montred 67676405
_sqr_remii 26613269
_sqr_remiibar 8881009
addifsmooth1 2163
addifsmooth2 83825
bestappr 105289
bestapprPade 119
bestapprPade0 126
bestappr_Q 2285159
bestappr_RgX 119
bestappr_frac 7
bestappr_real 1271484
bestappr_ser 98
check_kernel 63
checkp 2490494
chinese 5495
chinese1 2415
chinese1_coprime_Z 2460580
chinese1_coprime_Z_aux 2253533
compute_nbgen 63
contfrac0 49
contfracpnqn 266
err_oo 56
err_p 161
err_prec 196
factorial_Fl 56841
factorial_Fp 382
fibo 7
gboundcf 3142307
gc_chinese 1019027
gc_empty 42
gcf 126
gcf2 0
gen_chinese 2462995
gener_Zp 259
get_Fp_field 6963
get_PHI 98
gome 5631320
hilbert 62314
hilbertii 140826
icopy_lg 3136994
init_montdata 667622
intmod2polmod 21
is_gener_Fl 1662692
is_gener_Fp 13952
is_gener_expo 4909
istotient 70000
istotient_i 621565
krois 40033
kroiu 27624651
kronecker 11958437
krosi 143239
kross 101425455
kroui 35314
krouodd 178553
krouu 101618754
krouu_s 234679963
lcmii 54511083
lift_intmod 420
lift_padic 210
lucas 56
mod_to_frac 42
mod_to_rfrac 112
mpfact 496581
mphilbertoo 7329
mpprimorial 105
muls_interval 623
mulu_interval 159089
mulu_interval_step 90576
ncV_chinese_center 10550
ncV_chinese_center_tree 5457
ncV_polint_center_tree 1539179
nmV_chinese_center 421492
nmV_chinese_center_tree 0
nmV_chinese_center_tree_seq 142262
nmV_polint_center_tree 421492
nmV_polint_center_tree_seq 142262
nmV_polint_center_tree_worker 998414
nonsquare1_Fl 12154655
nonsquare_Fl 7930
nonsquare_Fp 1460
nxCV_chinese_center 0
nxCV_chinese_center_tree 0
nxCV_polint_center_tree 6583
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 1223
nxV_chinese_center 424479
nxV_chinese_center_tree 220229
nxV_polint_center_tree 787069
odd_prime_divisors 1812
ome 330446126
opt_param 63
padic2mod 21
pgener_Fl 575263
pgener_Fl_local 1081323
pgener_Fp 44275
pgener_Fp_local 412297
pgener_Zl 205745
pgener_Zp 170989
pnqn 0
polint_chinese 421596
remove2 1812
rootsof1_Fl 215544
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 1239195
tr 59731
u_chinese_coprime 1636554
u_chinese_post 1636567
u_is_gener_expo 545154
u_odd_prime_divisors 464147
u_remove2 464147
znlog 238
znlog_rec 126
znorder 63
znprimroot 329

Generated by: LCOV version 1.16