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 30718-589d22da69) Lines: 2553 2925 87.3 %
Date: 2026-02-27 09:23:18 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450516
Fl2_inv_pre 197623
Fl2_mul_pre 1954878
Fl2_norm_pre 127648
Fl2_pow_pre 672558
Fl2_sqr_pre 4911570
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76141
Fl_Flxq_log 35563
Fl_Xp1_powu 0
Fl_to_Flx 21945842
Flm_to_FlxV 2772
FlvV_polint_tree 2587342
Flv_Flm_polint 104561
Flv_inv 1744398
Flv_invVandermonde 153445
Flv_inv_i 1756409
Flv_inv_indir 52211
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21039741
Flv_inv_pre_inplace 19312532
Flv_polint 1485113
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745628
Flv_roots_to_pol 842054
Flv_to_Flx 25485968
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 325154
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22301
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 293613
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28974
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171877
FlxV_to_Flm_lg 12967366
FlxV_to_FlxX 397987
FlxV_to_ZXV 606850
FlxV_to_ZXV_inplace 3031551
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845425
Flx_Fl_mul 7326577
Flx_Fl_mul_pre 18096621
Flx_Fl_mul_to_monic 11856315
Flx_Fl_sub 151685
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785929
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166174
Flx_Flxq_eval 791311
Flx_Flxq_eval_pre 2444505
Flx_Frobenius 86619
Flx_Frobenius_pre 13812828
Flx_Laplace 27349
Flx_Newton 54101
Flx_add 65984200
Flx_addmulmul 358984
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526094
Flx_blocks_Flm 12967197
Flx_composedprod 0
Flx_composedsum 27550
Flx_convol 0
Flx_deflate 420774
Flx_deriv 22979629
Flx_diff1 14376
Flx_digits 0
Flx_div_by_X_x 36592706
Flx_divrem 30443134
Flx_divrem_Barrett 604444
Flx_divrem_Barrettspec 906173
Flx_divrem_basecase 61197965
Flx_divrem_pre 78635213
Flx_double 2299328
Flx_equal 28291658
Flx_eval 20441667
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48530689
Flx_eval_pre 136126610
Flx_extgcd 856787
Flx_extgcd_basecase 6181678
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6181673
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109404
Flx_gcd 35026471
Flx_gcd_basecase 85785294
Flx_gcd_pre 87438874
Flx_get_red 14503723
Flx_get_red_pre 98400708
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087636
Flx_halfgcd_all_pre 1087636
Flx_halfgcd_pre 873147
Flx_halfres_basecase 1094716
Flx_halfres_i 1114683
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160185
Flx_integ 0
Flx_integXn 422787
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54376
Flx_is_l_pow 8175
Flx_is_smooth 74256
Flx_is_smooth_pre 118373
Flx_is_smooth_squarefree 126518
Flx_is_squarefree 9180994
Flx_lgrenormalizespec 2134369
Flx_matFrobenius 0
Flx_matFrobenius_pre 86565
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4908595
Flx_mul 26709317
Flx_mul_pre 379764131
Flx_mulhigh_i 948056
Flx_mullimb 1185853351
Flx_mullimb_ok 3399259843
Flx_mulspec 385307443
Flx_mulspec_Kronecker 7331979
Flx_mulspec_basecase 347892227
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 97166
Flx_neg 3263978
Flx_neg_inplace 1767761
Flx_negspec 3263970
Flx_normalize 64839282
Flx_powu 0
Flx_powu_pre 3908
Flx_recip 0
Flx_recipspec 7288277
Flx_red 1879462
Flx_rem 42219652
Flx_rem_basecase 802351204
Flx_rem_pre 926215720
Flx_renormalize 2150359648
Flx_rescale 1117
Flx_resultant 4730021
Flx_resultant_basecase_pre 14591089
Flx_resultant_pre 14593695
Flx_shift 27398007
Flx_shiftip 633828424
Flx_splitting 147266
Flx_sqr 354661
Flx_sqr_pre 276880021
Flx_sqrspec 277140586
Flx_sqrspec_Kronecker 676880
Flx_sqrspec_basecase 277153815
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136409450
Flx_subspec 898435
Flx_to_Flv 66643432
Flx_to_FlxX 71405
Flx_to_ZX 38300090
Flx_to_ZX_inplace 36523406
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 17034
Flx_translate1_basecase 29126
Flx_triple 984021
Flx_unscale 0
Flx_val 4466588
Flx_valrem 28504127
Flxn_div 56315
Flxn_div_pre 56331
Flxn_exp 0
Flxn_expint 109405
Flxn_inv 1037
Flxn_mul 75844
Flxn_mul_pre 5178930
Flxn_mulhigh 526009
Flxn_recip 217374
Flxn_red 6361386
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69413
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779985
Flxq_auttrace_pre 959851
Flxq_auttrace_sqr 652699
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2313024
Flxq_easylog 519378
Flxq_inv 335769
Flxq_inv_pre 4182673
Flxq_invsafe 669716
Flxq_invsafe_pre 5324930
Flxq_is2npower 0
Flxq_issquare 404459
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 170662
Flxq_minpoly 45937
Flxq_minpoly_pre 809635
Flxq_mul 13192405
Flxq_mul_pre 190500133
Flxq_norm 443107
Flxq_order 97322
Flxq_pow 932805
Flxq_pow_Frobenius 23690646
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24738821
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232022
Flxq_powers_pre 22435057
Flxq_powu 488339
Flxq_powu_pre 24178416
Flxq_sqr 2763148
Flxq_sqr_pre 275951777
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23092
Flxq_sqrtn_spec_pre 21899
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4212327
Flxq_transmul_init 1746259
RgXV_to_FlxV 7
RgX_to_Flx 2205415
Rg_to_F2 1710358
Rg_to_Fl 72935495
Rg_to_Flxq 3588273
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797349
ZXV_to_FlxV 0
ZX_to_Flx 170944886
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556604
ZpX_invLaplace_init 497
_Fl2_mul 1925849
_Fl2_pow 672550
_Fl2_rand 113901
_Fl2_sqr 4911724
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11785617
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149541855
_Flxq_neg 366572
_Flxq_one 22436839
_Flxq_pow 23683238
_Flxq_powu 68
_Flxq_powu_i 22923869
_Flxq_rand 6554
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268280374
bounded_order 393978
gener_Flxq 7201
get_Fl_threshold 2331473062
get_Flx_red 989178604
get_Flxq_field 68902
get_Flxq_star 283431
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20933814
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 5622835
kron_unpack_Flx_bits_wide 5667757
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8442726
mkF2 7326328
monomial_Flx 941222
random_Flx 2645841
set_Flxq 68922
set_Flxq_pre 70652437
translate_basecase 42295
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6395482

Generated by: LCOV version 1.16