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 - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30617-dd5c93fb0e) Lines: 2553 2925 87.3 %
Date: 2026-01-19 09:22:13 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449713
Fl2_inv_pre 197311
Fl2_mul_pre 1953693
Fl2_norm_pre 127604
Fl2_pow_pre 671545
Fl2_sqr_pre 4911336
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76132
Fl_Flxq_log 35565
Fl_Xp1_powu 0
Fl_to_Flx 21935751
Flm_to_FlxV 2772
FlvV_polint_tree 2587525
Flv_Flm_polint 104562
Flv_inv 1744467
Flv_invVandermonde 153445
Flv_inv_i 1756473
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 20977115
Flv_inv_pre_inplace 19250502
Flv_polint 1485197
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745686
Flv_roots_to_pol 842035
Flv_to_Flx 25485164
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325148
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25997
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 297181
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28967
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171883
FlxV_to_Flm_lg 12966753
FlxV_to_FlxX 397977
FlxV_to_ZXV 606736
FlxV_to_ZXV_inplace 3031479
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9843766
Flx_Fl_mul 7329045
Flx_Fl_mul_pre 18293778
Flx_Fl_mul_to_monic 11856150
Flx_Fl_sub 151674
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785972
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165343
Flx_Flxq_eval 791307
Flx_Flxq_eval_pre 2444537
Flx_Frobenius 86618
Flx_Frobenius_pre 13809876
Flx_Laplace 27345
Flx_Newton 54101
Flx_add 66100768
Flx_addmulmul 416795
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516973
Flx_blocks_Flm 12965924
Flx_composedprod 0
Flx_composedsum 27551
Flx_convol 0
Flx_deflate 420794
Flx_deriv 22981270
Flx_diff1 14438
Flx_digits 0
Flx_div_by_X_x 36532467
Flx_divrem 30444825
Flx_divrem_Barrett 605418
Flx_divrem_Barrettspec 906748
Flx_divrem_basecase 62276405
Flx_divrem_pre 79714061
Flx_double 2443925
Flx_equal 28299136
Flx_eval 20408143
Flx_eval2BILspec 603297
Flx_eval_powers_pre 48505289
Flx_eval_pre 136124542
Flx_extgcd 856676
Flx_extgcd_basecase 6285791
Flx_extgcd_halfgcd 146652
Flx_extgcd_pre 6285781
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109395
Flx_gcd 35017801
Flx_gcd_basecase 85750210
Flx_gcd_pre 87405285
Flx_get_red 14500305
Flx_get_red_pre 98508238
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127313
Flx_halfgcd_all_pre 1127319
Flx_halfgcd_pre 873367
Flx_halfres_basecase 1134391
Flx_halfres_i 1154358
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161433
Flx_integ 0
Flx_integXn 422786
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134389
Flx_invBarrett_pre 158851
Flx_invLaplace 54370
Flx_is_l_pow 8206
Flx_is_smooth 74256
Flx_is_smooth_pre 119166
Flx_is_smooth_squarefree 127312
Flx_is_squarefree 9180657
Flx_lgrenormalizespec 2135821
Flx_matFrobenius 0
Flx_matFrobenius_pre 86569
Flx_mod_Xn1 31511
Flx_mod_Xnm1 4907756
Flx_mul 27812042
Flx_mul_pre 381848242
Flx_mulhigh_i 938865
Flx_mullimb 1185887595
Flx_mullimb_ok 3414661329
Flx_mulspec 387422002
Flx_mulspec_Kronecker 7353374
Flx_mulspec_basecase 349917992
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10139
Flx_mulspec_mulii_inflate 294047
Flx_mulspec_quartmulii 97161
Flx_neg 3264948
Flx_neg_inplace 1777875
Flx_negspec 3264949
Flx_normalize 64799396
Flx_powu 0
Flx_powu_pre 3963
Flx_recip 0
Flx_recipspec 7290649
Flx_red 1882600
Flx_rem 42226974
Flx_rem_basecase 802137931
Flx_rem_pre 926046241
Flx_renormalize 2157552986
Flx_rescale 1117
Flx_resultant 4732972
Flx_resultant_basecase_pre 14597302
Flx_resultant_pre 14599467
Flx_shift 27379742
Flx_shiftip 635602334
Flx_splitting 147666
Flx_sqr 354733
Flx_sqr_pre 276844721
Flx_sqrspec 277117444
Flx_sqrspec_Kronecker 695064
Flx_sqrspec_basecase 277235760
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138618652
Flx_subspec 899218
Flx_to_Flv 66637309
Flx_to_FlxX 71405
Flx_to_ZX 38297314
Flx_to_ZX_inplace 36565088
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204541
Flx_translate1 17097
Flx_translate1_basecase 29188
Flx_triple 1049261
Flx_unscale 0
Flx_val 4467957
Flx_valrem 28461043
Flxn_div 55158
Flxn_div_pre 55185
Flxn_exp 0
Flxn_expint 109397
Flxn_inv 1037
Flxn_mul 75838
Flxn_mul_pre 5159498
Flxn_mulhigh 516893
Flxn_recip 217332
Flxn_red 6330915
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69451
Flxq_autpow_sqr 47319
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780162
Flxq_auttrace_pre 960052
Flxq_auttrace_sqr 652866
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519352
Flxq_inv 335773
Flxq_inv_pre 4286478
Flxq_invsafe 670116
Flxq_invsafe_pre 5429125
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170661
Flxq_minpoly 45937
Flxq_minpoly_pre 809790
Flxq_mul 13192442
Flxq_mul_pre 190703082
Flxq_norm 443142
Flxq_order 97328
Flxq_pow 948307
Flxq_pow_Frobenius 23801001
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24864492
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232007
Flxq_powers_pre 22430459
Flxq_powu 488327
Flxq_powu_pre 24176516
Flxq_sqr 2763148
Flxq_sqr_pre 275921770
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4213167
Flxq_transmul_init 1746694
RgXV_to_FlxV 7
RgX_to_Flx 2249933
Rg_to_F2 1710213
Rg_to_Fl 73209289
Rg_to_Flxq 3588180
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813699
ZXV_to_FlxV 0
ZX_to_Flx 170993596
Z_mod2BIL_Flx 305861
Z_mod2BIL_Flx_2 308791
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556422
ZpX_invLaplace_init 497
_Fl2_mul 1924679
_Fl2_pow 671529
_Fl2_rand 113938
_Fl2_sqr 4911372
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11779171
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149520141
_Flxq_neg 366572
_Flxq_one 22429079
_Flxq_pow 23793593
_Flxq_powu 68
_Flxq_powu_i 22921919
_Flxq_rand 6552
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268036220
bounded_order 395374
gener_Flxq 7201
get_Fl_threshold 2335695551
get_Flx_red 990031945
get_Flxq_field 68902
get_Flxq_star 283438
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20994972
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5660038
kron_unpack_Flx_bits_wide 5669672
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8482319
mkF2 7324427
monomial_Flx 941444
random_Flx 2646282
set_Flxq 68922
set_Flxq_pre 70766597
translate_basecase 42354
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6401127

Generated by: LCOV version 1.16