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 30595-a3cd9a95e8) Lines: 2553 2925 87.3 %
Date: 2026-01-04 09:21:39 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449217
Fl2_inv_pre 197032
Fl2_mul_pre 1951313
Fl2_norm_pre 127539
Fl2_pow_pre 670783
Fl2_sqr_pre 4905764
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76005
Fl_Flxq_log 35540
Fl_Xp1_powu 0
Fl_to_Flx 21938083
Flm_to_FlxV 2772
FlvV_polint_tree 2587242
Flv_Flm_polint 104558
Flv_inv 1744444
Flv_invVandermonde 153445
Flv_inv_i 1756455
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21134908
Flv_inv_pre_inplace 19402118
Flv_polint 1485177
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745654
Flv_roots_to_pol 841951
Flv_to_Flx 25486202
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 325156
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 289600
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28952
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171880
FlxV_to_Flm_lg 12967456
FlxV_to_FlxX 397977
FlxV_to_ZXV 606738
FlxV_to_ZXV_inplace 3031537
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844913
Flx_Fl_mul 7326174
Flx_Fl_mul_pre 18290617
Flx_Fl_mul_to_monic 11855433
Flx_Fl_sub 151681
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785959
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166299
Flx_Flxq_eval 791313
Flx_Flxq_eval_pre 2444586
Flx_Frobenius 86619
Flx_Frobenius_pre 13812595
Flx_Laplace 27347
Flx_Newton 54095
Flx_add 66103893
Flx_addmulmul 416804
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 517130
Flx_blocks_Flm 12966897
Flx_composedprod 0
Flx_composedsum 27549
Flx_convol 0
Flx_deflate 420787
Flx_deriv 22983279
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36563346
Flx_divrem 30449790
Flx_divrem_Barrett 603315
Flx_divrem_Barrettspec 904687
Flx_divrem_basecase 62281668
Flx_divrem_pre 79726171
Flx_double 2443925
Flx_equal 28432605
Flx_eval 20429084
Flx_eval2BILspec 603289
Flx_eval_powers_pre 48504987
Flx_eval_pre 136175060
Flx_extgcd 856703
Flx_extgcd_basecase 6286050
Flx_extgcd_halfgcd 146656
Flx_extgcd_pre 6286019
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109403
Flx_gcd 35017048
Flx_gcd_basecase 85773692
Flx_gcd_pre 87433716
Flx_get_red 14502852
Flx_get_red_pre 98606297
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127120
Flx_halfgcd_all_pre 1127125
Flx_halfgcd_pre 873102
Flx_halfres_basecase 1134195
Flx_halfres_i 1154164
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 159880
Flx_integ 0
Flx_integXn 422775
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158851
Flx_invLaplace 54374
Flx_is_l_pow 8219
Flx_is_smooth 74256
Flx_is_smooth_pre 118866
Flx_is_smooth_squarefree 127109
Flx_is_squarefree 9180726
Flx_lgrenormalizespec 2131805
Flx_matFrobenius 0
Flx_matFrobenius_pre 86570
Flx_mod_Xn1 31507
Flx_mod_Xnm1 4907722
Flx_mul 27811041
Flx_mul_pre 382267588
Flx_mulhigh_i 939107
Flx_mullimb 1185791564
Flx_mullimb_ok 3421616466
Flx_mulspec 387845092
Flx_mulspec_Kronecker 7345294
Flx_mulspec_basecase 350142867
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10139
Flx_mulspec_mulii_inflate 294043
Flx_mulspec_quartmulii 97176
Flx_neg 3263067
Flx_neg_inplace 1777875
Flx_negspec 3263070
Flx_normalize 64814285
Flx_powu 0
Flx_powu_pre 3842
Flx_recip 0
Flx_recipspec 7285026
Flx_red 1875944
Flx_rem 42221927
Flx_rem_basecase 802845687
Flx_rem_pre 927286474
Flx_renormalize 2160650375
Flx_rescale 1117
Flx_resultant 4733721
Flx_resultant_basecase_pre 14598351
Flx_resultant_pre 14600567
Flx_shift 27380270
Flx_shiftip 636426411
Flx_splitting 146813
Flx_sqr 354586
Flx_sqr_pre 277747571
Flx_sqrspec 277861883
Flx_sqrspec_Kronecker 694963
Flx_sqrspec_basecase 277048260
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2066
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138634091
Flx_subspec 897130
Flx_to_Flv 66641486
Flx_to_FlxX 71405
Flx_to_ZX 38298194
Flx_to_ZX_inplace 36574231
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204570
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4464603
Flx_valrem 28480358
Flxn_div 55176
Flxn_div_pre 55180
Flxn_exp 0
Flxn_expint 109399
Flxn_inv 1037
Flxn_mul 75843
Flxn_mul_pre 5160714
Flxn_mulhigh 517089
Flxn_recip 217001
Flxn_red 6332685
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 69448
Flxq_autpow_sqr 47313
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780112
Flxq_auttrace_pre 959918
Flxq_auttrace_sqr 652794
Flxq_charpoly 3624
Flxq_conjvec 20
Flxq_div 237864
Flxq_div_pre 2416819
Flxq_easylog 519358
Flxq_inv 335772
Flxq_inv_pre 4286490
Flxq_invsafe 670261
Flxq_invsafe_pre 5429315
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170660
Flxq_minpoly 45937
Flxq_minpoly_pre 809635
Flxq_mul 13192493
Flxq_mul_pre 191072563
Flxq_norm 443132
Flxq_order 97328
Flxq_pow 948255
Flxq_pow_Frobenius 23878359
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24941742
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232008
Flxq_powers_pre 22436129
Flxq_powu 488341
Flxq_powu_pre 24178951
Flxq_sqr 2763146
Flxq_sqr_pre 276763587
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212243
Flxq_transmul_init 1746164
RgXV_to_FlxV 7
RgX_to_Flx 2249944
Rg_to_F2 1710244
Rg_to_Fl 73209724
Rg_to_Flxq 3588284
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3811807
ZXV_to_FlxV 0
ZX_to_Flx 171025400
Z_mod2BIL_Flx 305857
Z_mod2BIL_Flx_2 308787
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556506
ZpX_invLaplace_init 497
_Fl2_mul 1922277
_Fl2_pow 670766
_Fl2_rand 113734
_Fl2_sqr 4905757
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11779840
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149858332
_Flxq_neg 366572
_Flxq_one 22437049
_Flxq_pow 23870953
_Flxq_powu 68
_Flxq_powu_i 22924531
_Flxq_rand 6559
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268903076
bounded_order 395378
gener_Flxq 7201
get_Fl_threshold 2339785217
get_Flx_red 991185715
get_Flxq_field 68902
get_Flxq_star 283445
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107397
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20977983
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 5653707
kron_unpack_Flx_bits_wide 5668981
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8473962
mkF2 7317061
monomial_Flx 941172
random_Flx 2645865
set_Flxq 68922
set_Flxq_pre 70857193
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6401562

Generated by: LCOV version 1.16