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 30387-12623f1693) Lines: 2080 2301 90.4 %
Date: 2025-07-10 09:22:50 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 193901
Fl_2gener_pre_i 65765
Fl_2powu 4358751
Fl_2powu_pre 12918355
Fl_lgener_pre_all 147354
Fl_log 132390
Fl_log_Fp 0
Fl_log_naive 132390
Fl_log_naive_pre 28263
Fl_log_pre 28661
Fl_order 542780
Fl_powers 296057
Fl_powers_pre 14235344
Fl_powu 141502390
Fl_powu_pre 165847860
Fl_sqrt 12412052
Fl_sqrt_i 12532905
Fl_sqrt_pre 22694496
Fl_sqrt_pre_i 35300824
Fl_sqrtl 0
Fl_sqrtl_pre 231290
Fl_sqrtl_raw 234132
Fl_sqrtn 232516
Fl_sqrtn_pre 232516
FpV_prod 497
Fp_2gener 3327
Fp_2gener_all 5916
Fp_2gener_i 19392
Fp_easylog 8819029
Fp_factored_order 70
Fp_gausssum 363
Fp_invgen 6087181
Fp_invmBarrett 15391
Fp_log 4259273
Fp_log_find_ind 126
Fp_log_find_rel 126
Fp_log_halfgcd 56990
Fp_log_index 63
Fp_log_sieve 63
Fp_log_sieve_worker 30253
Fp_log_use_index 5039408
Fp_order 132353
Fp_pow 37757147
Fp_pow_init 105
Fp_pow_table 43694
Fp_powers 5931
Fp_pows 1346191
Fp_powu 1754724
Fp_rem_mBarrett 9723222
Fp_rootsof1 846
Fp_select_red 880488
Fp_sqrt 4832955
Fp_sqrt_i 4891414
Fp_sqrt_ii 80231
Fp_sqrtn 173548
Fp_sqrts 18505
Qsfcont 3137344
ZMV_producttree 0
ZM_nv_mod_tree 236984
ZM_nv_mod_tree_t 242441
ZT_sqr 13789347
ZVV_nv_mod_tree 5457
ZV_allpnqn 894782
ZV_chinese 5141
ZV_chinese_center 157260
ZV_chinese_tree 40782444
ZV_chinesetree 2692930
ZV_invdivexact 2692935
ZV_nv_mod_tree 1278349
ZV_producttree 2697593
ZV_sqr 2692935
ZXC_nv_mod_tree 5634
ZXM_nv_mod_tree 491
ZXX_nv_mod_tree 254949
ZX_nv_mod_tree 3107284
Z_ZV_mod 0
Z_ZV_mod_tree 58313776
Z_chinese 2142
Z_chinese_all 267618
Z_chinese_coprime 544198
Z_chinese_post 3069323
Z_chinese_pre 271336
Z_factor_listP 350651
Z_nv_mod 0
Zp_order 70
_Fp_add 1175565
_Fp_equal0 260724
_Fp_inv 34307
_Fp_mul 14228319
_Fp_neg 1086846
_Fp_one 47162
_Fp_pow 28602485
_Fp_rand 167
_Fp_red 889913
_Fp_rmul 575346
_Fp_s 19075
_Fp_sqr 8134253
_computeG 837
_gc_upto 112
_mul2_montred 10511434
_mul2_remii 4305342
_mul2_remiibar 2110968
_mul_montred 7091942
_mul_remii 1824853
_mul_remiibar 842213
_psi 1714
_sqr_montred 67665034
_sqr_remii 26677543
_sqr_remiibar 8881009
addifsmooth1 2163
addifsmooth2 83825
bestappr 105262
bestapprPade 119
bestapprPade0 126
bestappr_Q 2279983
bestappr_RgX 119
bestappr_frac 7
bestappr_real 1266344
bestappr_ser 98
check_kernel 63
checkp 2482956
chinese 5495
chinese1 2415
chinese1_coprime_Z 2460577
chinese1_coprime_Z_aux 2253533
compute_nbgen 63
contfrac0 49
contfracpnqn 266
err_oo 56
err_p 161
err_prec 196
factorial_Fl 56851
factorial_Fp 382
fibo 7
gboundcf 3142307
gc_chinese 1023837
gc_empty 42
gcf 126
gcf2 0
gen_chinese 2462992
gener_Zp 259
get_Fp_field 6963
get_PHI 98
gome 5631375
hilbert 62314
hilbertii 140826
icopy_lg 3136994
init_montdata 667613
intmod2polmod 21
is_gener_Fl 1662703
is_gener_Fp 13941
is_gener_expo 4909
istotient 70000
istotient_i 621565
krois 40033
kroiu 27626547
kronecker 11958412
krosi 143239
kross 101425454
kroui 35303
krouodd 178542
krouu 101592602
krouu_s 234654829
lcmii 54506651
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 159091
mulu_interval_step 90590
ncV_chinese_center 10550
ncV_chinese_center_tree 5457
ncV_polint_center_tree 1539152
nmV_chinese_center 421520
nmV_chinese_center_tree 0
nmV_chinese_center_tree_seq 142277
nmV_polint_center_tree 421520
nmV_polint_center_tree_seq 142277
nmV_polint_center_tree_worker 998403
nonsquare1_Fl 12147945
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 1223
nxV_chinese_center 429262
nxV_chinese_center_tree 304259
nxV_polint_center_tree 875928
odd_prime_divisors 1812
ome 330359207
opt_param 63
padic2mod 21
pgener_Fl 575260
pgener_Fl_local 1081326
pgener_Fp 44275
pgener_Fp_local 412287
pgener_Zl 205745
pgener_Zp 170989
pnqn 0
polint_chinese 421624
remove2 1812
rootsof1_Fl 215545
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 1894716
tr 59731
u_chinese_coprime 1636793
u_chinese_post 1636820
u_is_gener_expo 545151
u_odd_prime_divisors 464146
u_remove2 464146
znlog 238
znlog_rec 126
znorder 63
znprimroot 329

Generated by: LCOV version 1.16