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: 2553 2925 87.3 %
Date: 2026-03-11 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
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 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2069
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 3978
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6566
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8142
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10138
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 12215
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 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27493
Flx_composedsum 27699
FlxV_composedsum 28983
Flx_translate1_basecase 29202
Flx_mod_Xn1 31529
FlxV_Flc_mul 34482
Fl_Flxq_log 35580
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 52214
kron_pack_Flx_spec 53168
Flx_Newton 54392
Flx_invLaplace 54654
Flxn_div 56648
Flxn_div_pre 56660
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69413
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75981
Fl2_sqrtn_pre 76047
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86553
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97165
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flxn_expint 109540
Flx_fromNewton 109542
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113798
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118258
Flx_extgcd_halfgcd 126070
Flx_is_smooth_squarefree 126387
Fl2_norm_pre 127599
Flx_invBarrett_basecase 134388
Flx_splitting 147783
Flx_Fl_sub 151682
Flv_invVandermonde 153445
Flx_invBarrett_pre 158849
Flx_inflate 160622
Flxq_log 164210
Flxq_matrix_pow_pre 170637
FlxV_to_Flm 171857
Fl2_inv_pre 197258
Flx_to_int_quartspec 204547
Flxq_sumautsum_pre 210695
Flxn_recip 218176
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_powers 232122
FlxqC_red_pre 234855
Flxq_div 237793
get_Flxq_star 283433
Flx_mulspec_mulii_inflate 294046
Flxq_sumautsum_sqr 295218
FlxT_red 298199
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
FlxC_eval_powers_pre 325155
Flxq_inv 335761
Flx_sqr 354671
Flx_addmulmul 358987
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 394011
FlxV_to_FlxX 397987
Flxq_issquare 404459
Flx_deflate 421257
Flx_integXn 423375
Flxq_norm 443100
Fl2_equal1 449780
Flx_to_int_halfspec 468590
Flxq_powu 488363
int_to_Flx_half 507058
Flxq_easylog 519453
Flx_blocks 527552
Flxn_mulhigh 527913
Flx_eval2BILspec 603295
Flx_divrem_Barrett 605702
FlxV_to_ZXV 606955
Flxq_auttrace_sqr 652302
Flxq_invsafe 670499
_Fl2_pow 671494
Fl2_pow_pre 671502
Flx_sqrspec_Kronecker 677042
kron_pack_Flx_spec_half 688104
Flxq_auttrace_mul 779550
Flx_Flxq_eval 791472
Flxq_minpoly_pre 809481
Flv_roots_to_pol 842116
Flx_extgcd 857090
Flx_halfgcd_pre 872865
Flx_subspec 899608
Flx_divrem_Barrettspec 907350
Flxq_pow 932873
monomial_Flx 940960
Flx_mulhigh_i 950488
Flxq_auttrace_pre 959882
Flx_triple 984021
Flx_halfgcd_all_i 1087424
Flx_halfgcd_all_pre 1087426
Flx_halfres_basecase 1094503
Flx_halfres_i 1114468
_Flxq_rmul 1461838
Flv_polint 1485369
_Flxq_red 1550928
Rg_to_F2 1710458
Flv_inv 1744649
Flxq_transmul_init 1745711
Flv_producttree 1745851
Flv_inv_i 1756661
Flx_neg_inplace 1767867
Flx_Flv_multieval_tree 1786158
Flx_red 1884976
_Fl2_mul 1924182
Fl2_mul_pre 1953223
Flx_lgrenormalizespec 2136534
RgX_to_Flx 2193197
Flx_double 2299328
Flxq_div_pre 2312927
Flx_Flxq_eval_pre 2444504
FlvV_polint_tree 2587657
random_Flx 2645630
Flxq_sqr 2763155
FlxV_to_ZXV_inplace 3031963
Flx_negspec 3265270
Flx_neg 3265274
Rg_to_Flxq 3588148
Flx_addshift 3704783
ZXT_to_FlxT 3798712
Flxq_inv_pre 4182629
Flxq_transmul 4211417
Flx_val 4475928
Flx_resultant 4732585
Flx_mod_Xnm1 4907732
_Fl2_sqr 4911219
Fl2_sqr_pre 4911223
Flxn_mul_pre 5185750
Flxq_invsafe_pre 5325742
kron_unpack_Flx_bits_narrow 5626767
kron_unpack_Flx_bits_wide 5668815
Flx_extgcd_basecase 6182814
Flx_extgcd_pre 6182820
Flxn_red 6371032
zx_to_Flx 6418234
Flx_addspec 7210978
Flx_recipspec 7289506
mkF2 7324849
Flx_Fl_mul 7328517
Flx_mulspec_Kronecker 7335294
Z_to_Flx 7593619
maxbitcoeffpol 8446892
Flx_is_squarefree 9181802
Flx_Fl_add 9845993
_Flx_mul 11786285
Flx_Fl_mul_to_monic 11853998
Flx_blocks_Flm 12970253
FlxV_to_Flm_lg 12970791
Flx_FlxqV_eval_pre 13169748
Flxq_mul 13193885
Flx_Frobenius_pre 13817713
Flx_get_red 14508926
Flx_resultant_basecase_pre 14598857
Flx_resultant_pre 14600834
Flx_Fl_mul_pre 18100937
Flv_inv_pre_inplace 19437460
Flx_eval 20445604
kron_pack_Flx_spec_bits 20941889
Flv_inv_pre_indir 21169652
Fl_to_Flx 21962294
Flxq_powers_pre 22443890
_Flxq_one 22445155
_Flxq_pow 22874595
Flxq_pow_Frobenius 22882002
_Flxq_powu_i 22930297
Flx_deriv 22985921
Flxq_pow_pre 23930320
Flxq_powu_pre 24182970
Flv_to_Flx 25491773
Flx_mul 26711124
Flx_shift 27404147
Flx_equal 27489003
Flx_valrem 28513243
Flx_divrem 30452337
Flx_gcd 35026622
Flx_to_ZX_inplace 36532301
Flx_div_by_X_x 36613251
Flx_to_ZX 38307025
Flx_rem 42228152
Flx_eval_powers_pre 48628784
Flx_divrem_basecase 61225110
Flx_normalize 64856425
Flx_add 66004235
Flx_to_Flv 66652504
set_Flxq_pre 69861858
Rg_to_Fl 72889549
Flx_divrem_pre 78667931
Flx_gcd_basecase 85801339
Flx_gcd_pre 87469948
Flx_get_red_pre 97619491
Flx_eval_pre 136203093
Flx_sub 136458010
_Flxq_mul 148052529
ZX_to_Flx 170956329
Flxq_mul_pre 189035978
_Flxq_sqr 268355985
Flxq_sqr_pre 276031710
Flx_sqrspec_basecase 276292801
Flx_sqr_pre 276977325
Flx_sqrspec 277152968
Flx_mulspec_basecase 346345217
Flx_mul_pre 378478293
Flx_mulspec 384052626
Flx_shiftip 632122611
Flx_rem_basecase 800640585
Flx_rem_pre 924641832
get_Flx_red 987597552
Flx_mullimb 1187855491
Flx_renormalize 2146809028
get_Fl_threshold 2326898155
Flx_mullimb_ok 3370193098

Generated by: LCOV version 1.16