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 30712-26d8f09ef9) Lines: 2553 2925 87.3 %
Date: 2026-02-26 09:24:10 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450157
Fl2_inv_pre 197485
Fl2_mul_pre 1955031
Fl2_norm_pre 127630
Fl2_pow_pre 672122
Fl2_sqr_pre 4916297
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76093
Fl_Flxq_log 35558
Fl_Xp1_powu 0
Fl_to_Flx 21953920
Flm_to_FlxV 2772
FlvV_polint_tree 2587511
Flv_Flm_polint 104562
Flv_inv 1744439
Flv_invVandermonde 153445
Flv_inv_i 1756450
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21154297
Flv_inv_pre_inplace 19424030
Flv_polint 1485158
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745642
Flv_roots_to_pol 842214
Flv_to_Flx 25486683
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 325159
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 22302
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 294628
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28976
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12967823
FlxV_to_FlxX 397987
FlxV_to_ZXV 606839
FlxV_to_ZXV_inplace 3031585
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9848929
Flx_Fl_mul 7328046
Flx_Fl_mul_pre 18100735
Flx_Fl_mul_to_monic 11857529
Flx_Fl_sub 151681
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785948
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166683
Flx_Flxq_eval 791330
Flx_Flxq_eval_pre 2444557
Flx_Frobenius 86619
Flx_Frobenius_pre 13813433
Flx_Laplace 27349
Flx_Newton 54099
Flx_add 66004477
Flx_addmulmul 358985
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526243
Flx_blocks_Flm 12967584
Flx_composedprod 0
Flx_composedsum 27554
Flx_convol 0
Flx_deflate 420801
Flx_deriv 22981137
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36590018
Flx_divrem 30444948
Flx_divrem_Barrett 604723
Flx_divrem_Barrettspec 906270
Flx_divrem_basecase 61218087
Flx_divrem_pre 78657717
Flx_double 2299328
Flx_equal 26595342
Flx_eval 20448269
Flx_eval2BILspec 603299
Flx_eval_powers_pre 48616749
Flx_eval_pre 136179661
Flx_extgcd 856788
Flx_extgcd_basecase 6182537
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6182487
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109406
Flx_gcd 35028008
Flx_gcd_basecase 85793432
Flx_gcd_pre 87448567
Flx_get_red 14504317
Flx_get_red_pre 96764794
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087892
Flx_halfgcd_all_pre 1087894
Flx_halfgcd_pre 873258
Flx_halfres_basecase 1094965
Flx_halfres_i 1114936
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160624
Flx_integ 0
Flx_integXn 422800
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54382
Flx_is_l_pow 8191
Flx_is_smooth 74256
Flx_is_smooth_pre 118730
Flx_is_smooth_squarefree 126909
Flx_is_squarefree 9180785
Flx_lgrenormalizespec 2134900
Flx_matFrobenius 0
Flx_matFrobenius_pre 86565
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4907610
Flx_mul 26713238
Flx_mul_pre 376661998
Flx_mulhigh_i 948192
Flx_mullimb 1188668148
Flx_mullimb_ok 3342589049
Flx_mulspec 382249088
Flx_mulspec_Kronecker 7333558
Flx_mulspec_basecase 344808507
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10143
Flx_mulspec_mulii_inflate 294048
Flx_mulspec_quartmulii 97167
Flx_neg 3264271
Flx_neg_inplace 1767761
Flx_negspec 3264276
Flx_normalize 64865945
Flx_powu 0
Flx_powu_pre 3923
Flx_recip 0
Flx_recipspec 7289387
Flx_red 1880404
Flx_rem 42230164
Flx_rem_basecase 798227650
Flx_rem_pre 921964260
Flx_renormalize 2141248409
Flx_rescale 1117
Flx_resultant 4731798
Flx_resultant_basecase_pre 14596767
Flx_resultant_pre 14598732
Flx_shift 27399551
Flx_shiftip 629340472
Flx_splitting 147380
Flx_sqr 354687
Flx_sqr_pre 275512709
Flx_sqrspec 275794946
Flx_sqrspec_Kronecker 676947
Flx_sqrspec_basecase 275817117
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136432477
Flx_subspec 898593
Flx_to_Flv 66645315
Flx_to_FlxX 71405
Flx_to_ZX 38299657
Flx_to_ZX_inplace 36528042
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 984021
Flx_unscale 0
Flx_val 4474529
Flx_valrem 28508546
Flxn_div 56346
Flxn_div_pre 56361
Flxn_exp 0
Flxn_expint 109406
Flxn_inv 1037
Flxn_mul 75849
Flxn_mul_pre 5179953
Flxn_mulhigh 526181
Flxn_recip 217438
Flxn_red 6362375
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 20699
Flxq_autpow_pre 69425
Flxq_autpow_sqr 47258
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112115
Flxq_autsum_pre 98583
Flxq_autsum_sqr 104909
Flxq_auttrace 0
Flxq_auttrace_mul 780093
Flxq_auttrace_pre 959954
Flxq_auttrace_sqr 652807
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2313025
Flxq_easylog 519392
Flxq_inv 335771
Flxq_inv_pre 4182699
Flxq_invsafe 670474
Flxq_invsafe_pre 5325769
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 170658
Flxq_minpoly 45937
Flxq_minpoly_pre 809718
Flxq_mul 13192582
Flxq_mul_pre 187287837
Flxq_norm 443103
Flxq_order 97322
Flxq_pow 932875
Flxq_pow_Frobenius 22047404
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23095602
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232014
Flxq_powers_pre 22436763
Flxq_powu 488341
Flxq_powu_pre 24181732
Flxq_sqr 2763155
Flxq_sqr_pre 274596521
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4212946
Flxq_transmul_init 1746494
RgXV_to_FlxV 7
RgX_to_Flx 2205409
Rg_to_F2 1710380
Rg_to_Fl 72937745
Rg_to_Flxq 3588190
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797679
ZXV_to_FlxV 0
ZX_to_Flx 170962148
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556477
ZpX_invLaplace_init 497
_Fl2_mul 1925989
_Fl2_pow 672113
_Fl2_rand 113893
_Fl2_sqr 4916286
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11791141
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146324040
_Flxq_neg 366572
_Flxq_one 22437920
_Flxq_pow 22039987
_Flxq_powu 68
_Flxq_powu_i 22927728
_Flxq_rand 6577
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266935889
bounded_order 394012
gener_Flxq 7201
get_Fl_threshold 2317135801
get_Flx_red 984962323
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12216
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 20937545
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 5623797
kron_unpack_Flx_bits_wide 5667722
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8443984
mkF2 7331618
monomial_Flx 941332
random_Flx 2646042
set_Flxq 68922
set_Flxq_pre 69014883
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6416609

Generated by: LCOV version 1.16