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 30735-65f72320ad) Lines: 2560 2925 87.5 %
Date: 2026-03-15 09:23:45 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1043
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3908
Flxq_pow_table_pre 4392
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6559
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8119
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10143
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19963
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27488
Flx_composedsum 27698
FlxV_composedsum 28974
Flx_translate1_basecase 29202
Flx_mod_Xn1 31529
FlxV_Flc_mul 34482
Fl_Flxq_log 35555
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40869
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47243
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54385
Flx_invLaplace 54654
Flxn_div 56629
Flxn_div_pre 56642
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69412
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75981
Fl2_sqrtn_pre 76074
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86551
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97164
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104562
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flxn_expint 109531
Flx_fromNewton 109543
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113815
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 117950
Flx_extgcd_halfgcd 126065
Flx_is_smooth_squarefree 126074
Fl2_norm_pre 127627
Flx_invBarrett_basecase 134385
Flx_splitting 147267
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158844
Flx_inflate 159997
Flxq_log 164210
Flxq_matrix_pow_pre 170637
FlxV_to_Flm 171856
Fl2_inv_pre 197365
Flx_to_int_quartspec 204549
Flxq_sumautsum_pre 210695
Flxn_recip 218147
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_powers 232118
FlxqC_red_pre 234855
Flxq_div 237793
get_Flxq_star 283433
FlxT_red 293559
Flx_mulspec_mulii_inflate 294038
Flxq_sumautsum_sqr 295218
Z_mod2BIL_Flx 305852
Z_mod2BIL_Flx_2 308782
FlxC_eval_powers_pre 325154
Flxq_inv 335768
Flx_sqr 354578
Flx_addmulmul 358977
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 394012
FlxV_to_FlxX 397987
Flxq_issquare 404459
Flx_deflate 421239
Flx_integXn 423363
Flxq_norm 443109
Fl2_equal1 450005
Flx_to_int_halfspec 468590
Flxq_powu 488361
int_to_Flx_half 507058
Flxq_easylog 519422
Flxn_mulhigh 527954
Flx_blocks 528013
Flx_eval2BILspec 603279
Flx_divrem_Barrett 604425
FlxV_to_ZXV 606952
Flxq_auttrace_sqr 652301
Flxq_invsafe 670393
_Fl2_pow 671793
Fl2_pow_pre 671807
Flx_sqrspec_Kronecker 676942
kron_pack_Flx_spec_half 688104
Flxq_auttrace_mul 779547
Flx_Flxq_eval 791449
Flxq_minpoly_pre 809448
Flv_roots_to_pol 842173
Flx_extgcd 857077
Flx_halfgcd_pre 872981
Flx_subspec 898391
Flx_divrem_Barrettspec 906110
Flxq_pow 932859
monomial_Flx 941077
Flx_mulhigh_i 950611
Flxq_auttrace_pre 959837
Flx_triple 984021
Flx_halfgcd_all_i 1087433
Flx_halfgcd_all_pre 1087435
Flx_halfres_basecase 1094509
Flx_halfres_i 1114477
_Flxq_rmul 1461838
Flv_polint 1485337
_Flxq_red 1550928
Rg_to_F2 1710360
Flv_inv 1744616
Flv_producttree 1745828
Flxq_transmul_init 1745938
Flv_inv_i 1756621
Flx_neg_inplace 1767867
Flx_Flv_multieval_tree 1786122
Flx_red 1880860
_Fl2_mul 1925023
Fl2_mul_pre 1954068
Flx_lgrenormalizespec 2134099
RgX_to_Flx 2193194
Flx_double 2299328
Flxq_div_pre 2312927
Flx_Flxq_eval_pre 2444467
FlvV_polint_tree 2587729
random_Flx 2645670
Flxq_sqr 2763158
FlxV_to_ZXV_inplace 3031930
Flx_neg 3264010
Flx_negspec 3264011
Rg_to_Flxq 3588134
Flx_addshift 3704783
ZXT_to_FlxT 3797702
Flxq_inv_pre 4182608
Flxq_transmul 4211770
Flx_val 4471572
Flx_resultant 4732132
Flx_mod_Xnm1 4907615
Fl2_sqr_pre 4913430
_Fl2_sqr 4913464
Flxn_mul_pre 5185886
Flxq_invsafe_pre 5325585
kron_unpack_Flx_bits_narrow 5622855
kron_unpack_Flx_bits_wide 5669440
Flx_extgcd_pre 6182641
Flx_extgcd_basecase 6182650
Flxn_red 6366375
zx_to_Flx 6407248
Flx_addspec 7210978
Flx_recipspec 7286657
Flx_Fl_mul 7327112
mkF2 7327599
Flx_mulspec_Kronecker 7332548
Z_to_Flx 7593425
maxbitcoeffpol 8443404
Flx_is_squarefree 9181632
Flx_Fl_add 9845574
_Flx_mul 11791431
Flx_Fl_mul_to_monic 11854013
Flx_blocks_Flm 12970409
FlxV_to_Flm_lg 12970815
Flx_FlxqV_eval_pre 13169338
Flxq_mul 13193875
Flx_Frobenius_pre 13818160
Flx_get_red 14508883
Flx_resultant_basecase_pre 14597956
Flx_resultant_pre 14600046
Flx_Fl_mul_pre 18098294
Flv_inv_pre_inplace 19454338
Flx_eval 20450466
kron_pack_Flx_spec_bits 20935158
Flv_inv_pre_indir 21187968
Fl_to_Flx 21966233
Flxq_powers_pre 22444054
_Flxq_one 22444785
_Flxq_powu_i 22928469
Flx_deriv 22984855
_Flxq_pow 23049747
Flxq_pow_Frobenius 23057156
Flxq_pow_pre 24105391
Flxq_powu_pre 24180773
Flv_to_Flx 25491498
Flx_mul 26706755
Flx_shift 27404121
Flx_equal 27655704
Flx_valrem 28497734
Flx_divrem 30451326
Flx_gcd 35022480
Flx_to_ZX_inplace 36530878
Flx_div_by_X_x 36612414
Flx_to_ZX 38305541
Flx_rem 42230324
Flx_eval_powers_pre 48602358
Flx_divrem_basecase 61219780
Flx_normalize 64838416
Flx_add 66001950
Flx_to_Flv 66651623
set_Flxq_pre 70030523
Rg_to_Fl 72889222
Flx_divrem_pre 78661103
Flx_gcd_basecase 85798452
Flx_gcd_pre 87464066
Flx_get_red_pre 97788653
Flx_eval_pre 136200455
Flx_sub 136449303
_Flxq_mul 148403804
ZX_to_Flx 170949054
Flxq_mul_pre 189386043
_Flxq_sqr 268502815
Flxq_sqr_pre 276173273
Flx_sqrspec_basecase 276409451
Flx_sqr_pre 277135696
Flx_sqrspec 277280185
Flx_mulspec_basecase 346705023
Flx_mul_pre 378821907
Flx_mulspec 384408853
Flx_shiftip 632527098
Flx_rem_basecase 800979561
Flx_rem_pre 925035458
get_Flx_red 988022535
Flx_mullimb 1187138286
Flx_renormalize 2147760161
get_Fl_threshold 2328467941
Flx_mullimb_ok 3374785588

Generated by: LCOV version 1.16