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 30824-18397de1d0) Lines: 2553 2925 87.3 %
Date: 2026-04-19 09:25:48 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450214
Fl2_inv_pre 197479
Fl2_mul_pre 17093422
Fl2_norm_pre 97118601
Fl2_pow_pre 672221
Fl2_sqr_pre 4910642
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76099
Fl_Flxq_log 35575
Fl_Xp1_powu 0
Fl_to_Flx 21936733
Flm_to_FlxV 2772
FlvV_polint_tree 2587820
Flv_Flm_polint 104560
Flv_inv 1744751
Flv_invVandermonde 153445
Flv_inv_i 1756757
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21042398
Flv_inv_pre_inplace 19317380
Flv_polint 1485478
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745961
Flv_roots_to_pol 842095
Flv_to_Flx 25490413
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 25999
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 294127
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28982
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171859
FlxV_to_Flm_lg 12971487
FlxV_to_FlxX 397987
FlxV_to_ZXV 609484
FlxV_to_ZXV_inplace 3032509
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844952
Flx_Fl_mul 9422679
Flx_Fl_mul_pre 20197532
Flx_Fl_mul_to_monic 11860195
Flx_Fl_sub 151686
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786269
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169954
Flx_Flxq_eval 791475
Flx_Flxq_eval_pre 2444878
Flx_Frobenius 86618
Flx_Frobenius_pre 13818502
Flx_Laplace 27496
Flx_Newton 54377
Flx_add 73812963
Flx_addmulmul 359019
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527748
Flx_blocks_Flm 12970268
Flx_composedprod 0
Flx_composedsum 27693
Flx_convol 0
Flx_deflate 421320
Flx_deriv 22890239
Flx_diff1 660305
Flx_digits 0
Flx_div_by_X_x 36585498
Flx_divrem 30449943
Flx_divrem_Barrett 604587
Flx_divrem_Barrettspec 905673
Flx_divrem_basecase 61235209
Flx_divrem_pre 78667382
Flx_double 1179459
Flx_equal 26102797
Flx_eval 20412745
Flx_eval2BILspec 603299
Flx_eval_powers_pre 48567138
Flx_eval_pre 136138743
Flx_extgcd 857834
Flx_extgcd_basecase 6184553
Flx_extgcd_halfgcd 126085
Flx_extgcd_pre 6184546
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109547
Flx_gcd 35040138
Flx_gcd_basecase 85788421
Flx_gcd_pre 87459151
Flx_get_red 14507102
Flx_get_red_pre 96993788
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087687
Flx_halfgcd_all_pre 1087686
Flx_halfgcd_pre 873220
Flx_halfres_basecase 1094766
Flx_halfres_i 1114732
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160327
Flx_integ 0
Flx_integXn 423356
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134411
Flx_invBarrett_pre 158871
Flx_invLaplace 54655
Flx_is_l_pow 8177
Flx_is_smooth 74256
Flx_is_smooth_pre 118481
Flx_is_smooth_squarefree 126618
Flx_is_squarefree 9207398
Flx_lgrenormalizespec 2133708
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31627
Flx_mod_Xnm1 4908110
Flx_mul 26712025
Flx_mul_pre 380295619
Flx_mulhigh_i 950153
Flx_mullimb 1186065386
Flx_mullimb_ok 3341013672
Flx_mulspec 385981012
Flx_mulspec_Kronecker 7367435
Flx_mulspec_basecase 346354698
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10136
Flx_mulspec_mulii_inflate 294048
Flx_mulspec_quartmulii 97165
Flx_neg 4175532
Flx_neg_inplace 1799550
Flx_negspec 4175539
Flx_normalize 64824433
Flx_powu 0
Flx_powu_pre 3916
Flx_recip 0
Flx_recipspec 7287611
Flx_red 1881289
Flx_rem 42206703
Flx_rem_basecase 796837986
Flx_rem_pre 922584015
Flx_renormalize 2162299328
Flx_rescale 1117
Flx_resultant 4609391
Flx_resultant_basecase_pre 14474508
Flx_resultant_pre 14476758
Flx_shift 27403191
Flx_shiftip 628812954
Flx_splitting 147324
Flx_sqr 370243
Flx_sqr_pre 273632263
Flx_sqrspec 273972088
Flx_sqrspec_Kronecker 670235
Flx_sqrspec_basecase 274104809
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136557880
Flx_subspec 898103
Flx_to_Flv 66649526
Flx_to_FlxX 71405
Flx_to_ZX 38382945
Flx_to_ZX_inplace 36546357
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204549
Flx_translate1 662963
Flx_translate1_basecase 675026
Flx_triple 551294
Flx_unscale 0
Flx_val 4473803
Flx_valrem 28473593
Flxn_div 56584
Flxn_div_pre 56618
Flxn_exp 0
Flxn_expint 109538
Flxn_inv 1037
Flxn_mul 75983
Flxn_mul_pre 5184028
Flxn_mulhigh 527670
Flxn_recip 218059
Flxn_red 6368467
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 20698
Flxq_autpow_pre 69420
Flxq_autpow_sqr 47254
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112105
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779527
Flxq_auttrace_pre 960190
Flxq_auttrace_sqr 652310
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519456
Flxq_inv 335787
Flxq_inv_pre 4183784
Flxq_invsafe 670406
Flxq_invsafe_pre 5326746
Flxq_is2npower 0
Flxq_issquare 404606
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 170646
Flxq_minpoly 45937
Flxq_minpoly_pre 809762
Flxq_mul 18079986
Flxq_mul_pre 191017343
Flxq_norm 443252
Flxq_order 97322
Flxq_pow 933159
Flxq_pow_Frobenius 22279845
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23328358
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232116
Flxq_powers_pre 22440928
Flxq_powu 488360
Flxq_powu_pre 24181276
Flxq_sqr 2763475
Flxq_sqr_pre 272663741
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212347
Flxq_transmul_init 1746388
RgXV_to_FlxV 7
RgX_to_Flx 2209606
Rg_to_F2 1715117
Rg_to_Fl 73084946
Rg_to_Flxq 3461432
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797957
ZXV_to_FlxV 0
ZX_to_Flx 171051962
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593692
ZpX_invLaplace_init 497
_Fl2_mul 1925073
_Fl2_pow 672209
_Fl2_rand 113910
_Fl2_sqr 4910765
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11784685
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146586410
_Flxq_neg 366572
_Flxq_one 22438585
_Flxq_pow 22272432
_Flxq_powu 68
_Flxq_powu_i 22928566
_Flxq_rand 6567
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266456948
bounded_order 394020
gener_Flxq 7201
get_Fl_threshold 2313802911
get_Flx_red 985504628
get_Flxq_field 68902
get_Flxq_star 283433
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 20998283
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 5623255
kron_unpack_Flx_bits_wide 5696752
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8472147
mkF2 27667748
monomial_Flx 941364
random_Flx 2646234
set_Flxq 68922
set_Flxq_pre 69243450
translate_basecase 688222
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6403106

Generated by: LCOV version 1.16