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 30734-f1f26dedcb) Lines: 2553 2925 87.3 %
Date: 2026-03-05 09:24:39 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450215
Fl2_inv_pre 197501
Fl2_mul_pre 1955008
Fl2_norm_pre 127628
Fl2_pow_pre 672263
Fl2_sqr_pre 4916358
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76149
Fl_Flxq_log 35571
Fl_Xp1_powu 0
Fl_to_Flx 21954795
Flm_to_FlxV 2772
FlvV_polint_tree 2587800
Flv_Flm_polint 104562
Flv_inv 1744712
Flv_invVandermonde 153445
Flv_inv_i 1756726
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21189904
Flv_inv_pre_inplace 19456537
Flv_polint 1485432
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745914
Flv_roots_to_pol 842179
Flv_to_Flx 25490882
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 325151
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 294157
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28975
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171863
FlxV_to_Flm_lg 12970372
FlxV_to_FlxX 397987
FlxV_to_ZXV 606003
FlxV_to_ZXV_inplace 3031983
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844859
Flx_Fl_mul 7316515
Flx_Fl_mul_pre 18064657
Flx_Fl_mul_to_monic 11855427
Flx_Fl_sub 151690
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786217
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169304
Flx_Flxq_eval 791131
Flx_Flxq_eval_pre 2444010
Flx_Frobenius 86619
Flx_Frobenius_pre 13819576
Flx_Laplace 27486
Flx_Newton 54378
Flx_add 66002838
Flx_addmulmul 358989
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527906
Flx_blocks_Flm 12970082
Flx_composedprod 0
Flx_composedsum 27695
Flx_convol 0
Flx_deflate 421262
Flx_deriv 22986854
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36610627
Flx_divrem 30198236
Flx_divrem_Barrett 604575
Flx_divrem_Barrettspec 906020
Flx_divrem_basecase 61156226
Flx_divrem_pre 78347526
Flx_double 2299328
Flx_equal 27896604
Flx_eval 20449451
Flx_eval2BILspec 603297
Flx_eval_powers_pre 48599571
Flx_eval_pre 136212527
Flx_extgcd 856963
Flx_extgcd_basecase 6166449
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6166449
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109541
Flx_gcd 35035204
Flx_gcd_basecase 85830955
Flx_gcd_pre 87492174
Flx_get_red 14510429
Flx_get_red_pre 98043043
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087138
Flx_halfgcd_all_pre 1087140
Flx_halfgcd_pre 872740
Flx_halfres_basecase 1094218
Flx_halfres_i 1114184
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160313
Flx_integ 0
Flx_integXn 423376
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158847
Flx_invLaplace 54638
Flx_is_l_pow 8174
Flx_is_smooth 74256
Flx_is_smooth_pre 118324
Flx_is_smooth_squarefree 126524
Flx_is_squarefree 9181788
Flx_lgrenormalizespec 2134398
Flx_matFrobenius 0
Flx_matFrobenius_pre 86557
Flx_mod_Xn1 31526
Flx_mod_Xnm1 4908431
Flx_mul 26552454
Flx_mul_pre 378993377
Flx_mulhigh_i 950588
Flx_mullimb 1186364707
Flx_mullimb_ok 3384472116
Flx_mulspec 384574870
Flx_mulspec_Kronecker 7333648
Flx_mulspec_basecase 346923951
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294047
Flx_mulspec_quartmulii 97166
Flx_neg 3263124
Flx_neg_inplace 1767867
Flx_negspec 3263117
Flx_normalize 64879383
Flx_powu 0
Flx_powu_pre 3912
Flx_recip 0
Flx_recipspec 7286453
Flx_red 1881423
Flx_rem 42230334
Flx_rem_basecase 801619618
Flx_rem_pre 925677519
Flx_renormalize 2147671138
Flx_rescale 1117
Flx_resultant 4732441
Flx_resultant_basecase_pre 14599154
Flx_resultant_pre 14601098
Flx_shift 27402035
Flx_shiftip 632727030
Flx_splitting 146905
Flx_sqr 354449
Flx_sqr_pre 277158833
Flx_sqrspec 277281955
Flx_sqrspec_Kronecker 676965
Flx_sqrspec_basecase 276495570
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136317091
Flx_subspec 898461
Flx_to_Flv 66654977
Flx_to_FlxX 71405
Flx_to_ZX 38072641
Flx_to_ZX_inplace 36278601
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204549
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 983881
Flx_unscale 0
Flx_val 4471925
Flx_valrem 28539133
Flxn_div 56634
Flxn_div_pre 56644
Flxn_exp 0
Flxn_expint 109537
Flxn_inv 1037
Flxn_mul 75986
Flxn_mul_pre 5184403
Flxn_mulhigh 527858
Flxn_recip 218118
Flxn_red 6369811
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 113169
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20698
Flxq_autpow_pre 69345
Flxq_autpow_sqr 47107
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779479
Flxq_auttrace_pre 959821
Flxq_auttrace_sqr 652225
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237513
Flxq_div_pre 2312647
Flxq_easylog 519456
Flxq_inv 320042
Flxq_inv_pre 4166370
Flxq_invsafe 670529
Flxq_invsafe_pre 5309493
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113169
Flxq_lroot_pre 24983
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170646
Flxq_minpoly 45867
Flxq_minpoly_pre 809332
Flxq_mul 13191041
Flxq_mul_pre 189848894
Flxq_norm 443028
Flxq_order 97322
Flxq_pow 932729
Flxq_pow_Frobenius 23299277
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24347486
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 231169
Flxq_powers_pre 22444377
Flxq_powu 488153
Flxq_powu_pre 24187238
Flxq_sqr 2762166
Flxq_sqr_pre 276217556
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
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 4696
Flxq_transmul 4210569
Flxq_transmul_init 1745479
RgXV_to_FlxV 7
RgX_to_Flx 2193195
Rg_to_F2 1710371
Rg_to_Fl 72888823
Rg_to_Flxq 3586946
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3764541
ZXV_to_FlxV 0
ZX_to_Flx 169983840
Z_mod2BIL_Flx 305861
Z_mod2BIL_Flx_2 308791
Z_mod2BIL_Flx_3 0
Z_to_Flx 7576498
ZpX_invLaplace_init 497
_Fl2_mul 1925975
_Fl2_pow 672258
_Fl2_rand 113807
_Fl2_sqr 4916163
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794321
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148870108
_Flxq_neg 366572
_Flxq_one 22446581
_Flxq_pow 23291870
_Flxq_powu 68
_Flxq_powu_i 22933836
_Flxq_rand 6576
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268542147
bounded_order 394025
gener_Flxq 7201
get_Fl_threshold 2330631239
get_Flx_red 988565468
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12217
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 20936638
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 5623313
kron_unpack_Flx_bits_wide 5669417
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8444010
mkF2 7331695
monomial_Flx 940835
random_Flx 2645225
set_Flxq 68922
set_Flxq_pre 70283999
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6410823

Generated by: LCOV version 1.16