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 30601-812dd05845) Lines: 2553 2925 87.3 %
Date: 2026-01-06 09:22:34 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449850
Fl2_inv_pre 197312
Fl2_mul_pre 1952956
Fl2_norm_pre 127552
Fl2_pow_pre 671628
Fl2_sqr_pre 4907945
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76041
Fl_Flxq_log 35554
Fl_Xp1_powu 0
Fl_to_Flx 21944480
Flm_to_FlxV 2772
FlvV_polint_tree 2587517
Flv_Flm_polint 104561
Flv_inv 1744444
Flv_invVandermonde 153445
Flv_inv_i 1756449
Flv_inv_indir 52211
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21085843
Flv_inv_pre_inplace 19347803
Flv_polint 1485152
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745638
Flv_roots_to_pol 842088
Flv_to_Flx 25485496
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 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 293636
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28960
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171879
FlxV_to_Flm_lg 12967281
FlxV_to_FlxX 397977
FlxV_to_ZXV 606745
FlxV_to_ZXV_inplace 3031559
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846179
Flx_Fl_mul 7328188
Flx_Fl_mul_pre 18291712
Flx_Fl_mul_to_monic 11856496
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785940
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166416
Flx_Flxq_eval 791321
Flx_Flxq_eval_pre 2444618
Flx_Frobenius 86619
Flx_Frobenius_pre 13812066
Flx_Laplace 27349
Flx_Newton 54097
Flx_add 66095986
Flx_addmulmul 416802
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516727
Flx_blocks_Flm 12966576
Flx_composedprod 0
Flx_composedsum 27545
Flx_convol 0
Flx_deflate 420789
Flx_deriv 22982560
Flx_diff1 14417
Flx_digits 0
Flx_div_by_X_x 36575286
Flx_divrem 30449164
Flx_divrem_Barrett 604435
Flx_divrem_Barrettspec 905896
Flx_divrem_basecase 62277039
Flx_divrem_pre 79717934
Flx_double 2443925
Flx_equal 26311265
Flx_eval 20437059
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48594320
Flx_eval_pre 136169676
Flx_extgcd 856691
Flx_extgcd_basecase 6285581
Flx_extgcd_halfgcd 146653
Flx_extgcd_pre 6285624
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109402
Flx_gcd 35017032
Flx_gcd_basecase 85766403
Flx_gcd_pre 87427876
Flx_get_red 14502896
Flx_get_red_pre 96488494
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126959
Flx_halfgcd_all_pre 1126964
Flx_halfgcd_pre 873228
Flx_halfres_basecase 1134037
Flx_halfres_i 1154003
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160851
Flx_integ 0
Flx_integXn 422717
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158852
Flx_invLaplace 54346
Flx_is_l_pow 8148
Flx_is_smooth 74256
Flx_is_smooth_pre 118578
Flx_is_smooth_squarefree 126731
Flx_is_squarefree 9180792
Flx_lgrenormalizespec 2133545
Flx_matFrobenius 0
Flx_matFrobenius_pre 86566
Flx_mod_Xn1 31507
Flx_mod_Xnm1 4907790
Flx_mul 27808006
Flx_mul_pre 377921625
Flx_mulhigh_i 938108
Flx_mullimb 1186158703
Flx_mullimb_ok 3347261222
Flx_mulspec 383497742
Flx_mulspec_Kronecker 7348569
Flx_mulspec_basecase 345770106
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97167
Flx_neg 3264094
Flx_neg_inplace 1777875
Flx_negspec 3264087
Flx_normalize 64811663
Flx_powu 0
Flx_powu_pre 3904
Flx_recip 0
Flx_recipspec 7287731
Flx_red 1879497
Flx_rem 42229346
Flx_rem_basecase 796689620
Flx_rem_pre 920757532
Flx_renormalize 2147180541
Flx_rescale 1117
Flx_resultant 4733175
Flx_resultant_basecase_pre 14596885
Flx_resultant_pre 14599323
Flx_shift 27378439
Flx_shiftip 629924295
Flx_splitting 147268
Flx_sqr 354667
Flx_sqr_pre 275601204
Flx_sqrspec 275775980
Flx_sqrspec_Kronecker 695070
Flx_sqrspec_basecase 275013657
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138630321
Flx_subspec 898218
Flx_to_Flv 66640134
Flx_to_FlxX 71405
Flx_to_ZX 38298167
Flx_to_ZX_inplace 36571101
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17078
Flx_translate1_basecase 29166
Flx_triple 1049261
Flx_unscale 0
Flx_val 4472577
Flx_valrem 28456977
Flxn_div 55140
Flxn_div_pre 55175
Flxn_exp 0
Flxn_expint 109399
Flxn_inv 1037
Flxn_mul 75848
Flxn_mul_pre 5157726
Flxn_mulhigh 516628
Flxn_recip 217290
Flxn_red 6327286
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69447
Flxq_autpow_sqr 47314
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112473
Flxq_autsum_pre 98769
Flxq_autsum_sqr 105111
Flxq_auttrace 0
Flxq_auttrace_mul 780206
Flxq_auttrace_pre 959987
Flxq_auttrace_sqr 652880
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237864
Flxq_div_pre 2416819
Flxq_easylog 519359
Flxq_inv 335771
Flxq_inv_pre 4286455
Flxq_invsafe 669923
Flxq_invsafe_pre 5428997
Flxq_is2npower 0
Flxq_issquare 404492
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 809733
Flxq_mul 13192276
Flxq_mul_pre 186771859
Flxq_norm 443134
Flxq_order 97328
Flxq_pow 948226
Flxq_pow_Frobenius 21760650
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 22824113
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232015
Flxq_powers_pre 22434046
Flxq_powu 488344
Flxq_powu_pre 24180600
Flxq_sqr 2763147
Flxq_sqr_pre 274624024
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21899
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212896
Flxq_transmul_init 1746421
RgXV_to_FlxV 7
RgX_to_Flx 2249944
Rg_to_F2 1710332
Rg_to_Fl 73210108
Rg_to_Flxq 3588252
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812813
ZXV_to_FlxV 0
ZX_to_Flx 171021938
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556449
ZpX_invLaplace_init 497
_Fl2_mul 1923883
_Fl2_pow 671600
_Fl2_rand 113867
_Fl2_sqr 4907990
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11780599
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 145557893
_Flxq_neg 366572
_Flxq_one 22435350
_Flxq_pow 21753240
_Flxq_powu 68
_Flxq_powu_i 22925931
_Flxq_rand 6559
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266707232
bounded_order 395382
gener_Flxq 7201
get_Fl_threshold 2318194803
get_Flx_red 984796459
get_Flxq_field 68902
get_Flxq_star 283438
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 20984704
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 5657136
kron_unpack_Flx_bits_wide 5669941
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8477761
mkF2 7322400
monomial_Flx 941304
random_Flx 2646146
set_Flxq 68922
set_Flxq_pre 68739686
translate_basecase 42333
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6411148

Generated by: LCOV version 1.16