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 30674-be81ecfdd4) Lines: 2553 2925 87.3 %
Date: 2026-02-09 09:23:39 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449954
Fl2_inv_pre 197334
Fl2_mul_pre 1953256
Fl2_norm_pre 127573
Fl2_pow_pre 671773
Fl2_sqr_pre 4910834
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76039
Fl_Flxq_log 35541
Fl_Xp1_powu 0
Fl_to_Flx 21953039
Flm_to_FlxV 2772
FlvV_polint_tree 2587432
Flv_Flm_polint 104558
Flv_inv 1744441
Flv_invVandermonde 153445
Flv_inv_i 1756452
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21132469
Flv_inv_pre_inplace 19401140
Flv_polint 1485178
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745670
Flv_roots_to_pol 842039
Flv_to_Flx 25488441
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 325157
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 292699
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28958
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171876
FlxV_to_Flm_lg 12969028
FlxV_to_FlxX 397977
FlxV_to_ZXV 606840
FlxV_to_ZXV_inplace 3031625
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846062
Flx_Fl_mul 7326757
Flx_Fl_mul_pre 18291562
Flx_Fl_mul_to_monic 11856398
Flx_Fl_sub 151682
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785963
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13167208
Flx_Flxq_eval 791332
Flx_Flxq_eval_pre 2444610
Flx_Frobenius 86618
Flx_Frobenius_pre 13814214
Flx_Laplace 27338
Flx_Newton 54082
Flx_add 66141666
Flx_addmulmul 416800
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526264
Flx_blocks_Flm 12968262
Flx_composedprod 0
Flx_composedsum 27555
Flx_convol 0
Flx_deflate 420784
Flx_deriv 22981691
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36600981
Flx_divrem 30448938
Flx_divrem_Barrett 604168
Flx_divrem_Barrettspec 905675
Flx_divrem_basecase 62286328
Flx_divrem_pre 79730443
Flx_double 2443925
Flx_equal 27559436
Flx_eval 20442106
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48548259
Flx_eval_pre 136182200
Flx_extgcd 856790
Flx_extgcd_basecase 6286273
Flx_extgcd_halfgcd 146650
Flx_extgcd_pre 6286275
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109399
Flx_gcd 35022472
Flx_gcd_basecase 85791474
Flx_gcd_pre 87456495
Flx_get_red 14505439
Flx_get_red_pre 97733012
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127264
Flx_halfgcd_all_pre 1127266
Flx_halfgcd_pre 873236
Flx_halfres_basecase 1134339
Flx_halfres_i 1154309
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160151
Flx_integ 0
Flx_integXn 422765
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134393
Flx_invBarrett_pre 158854
Flx_invLaplace 54353
Flx_is_l_pow 8180
Flx_is_smooth 74256
Flx_is_smooth_pre 118728
Flx_is_smooth_squarefree 126928
Flx_is_squarefree 9180936
Flx_lgrenormalizespec 2133491
Flx_matFrobenius 0
Flx_matFrobenius_pre 86569
Flx_mod_Xn1 31506
Flx_mod_Xnm1 4907447
Flx_mul 27793684
Flx_mul_pre 380750453
Flx_mulhigh_i 948311
Flx_mullimb 1188781068
Flx_mullimb_ok 3392442708
Flx_mulspec 386345147
Flx_mulspec_Kronecker 7353267
Flx_mulspec_basecase 348585994
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10139
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 97165
Flx_neg 3264072
Flx_neg_inplace 1780025
Flx_negspec 3264070
Flx_normalize 64852132
Flx_powu 0
Flx_powu_pre 3892
Flx_recip 0
Flx_recipspec 7287527
Flx_red 1878722
Flx_rem 42226100
Flx_rem_basecase 801179136
Flx_rem_pre 925318776
Flx_renormalize 2157966174
Flx_rescale 1117
Flx_resultant 4731425
Flx_resultant_basecase_pre 14595835
Flx_resultant_pre 14597908
Flx_shift 27400108
Flx_shiftip 634401215
Flx_splitting 147156
Flx_sqr 354645
Flx_sqr_pre 277219094
Flx_sqrspec 277353804
Flx_sqrspec_Kronecker 695068
Flx_sqrspec_basecase 276517873
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138656481
Flx_subspec 898171
Flx_to_Flv 66650328
Flx_to_FlxX 71405
Flx_to_ZX 38300365
Flx_to_ZX_inplace 36549798
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204548
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4468052
Flx_valrem 28519493
Flxn_div 56335
Flxn_div_pre 56355
Flxn_exp 0
Flxn_expint 109394
Flxn_inv 1037
Flxn_mul 75836
Flxn_mul_pre 5180589
Flxn_mulhigh 526213
Flxn_recip 217404
Flxn_red 6362684
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 69449
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 780103
Flxq_auttrace_pre 959914
Flxq_auttrace_sqr 652786
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519379
Flxq_inv 335767
Flxq_inv_pre 4286564
Flxq_invsafe 670366
Flxq_invsafe_pre 5429499
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 170656
Flxq_minpoly 45937
Flxq_minpoly_pre 809654
Flxq_mul 13192571
Flxq_mul_pre 189381584
Flxq_norm 443128
Flxq_order 97328
Flxq_pow 948269
Flxq_pow_Frobenius 22992352
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24055715
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232014
Flxq_powers_pre 22439092
Flxq_powu 488340
Flxq_powu_pre 24180686
Flxq_sqr 2763155
Flxq_sqr_pre 276257572
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37665
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212680
Flxq_transmul_init 1746439
RgXV_to_FlxV 7
RgX_to_Flx 2205411
Rg_to_F2 1710100
Rg_to_Fl 72937198
Rg_to_Flxq 3588259
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812688
ZXV_to_FlxV 0
ZX_to_Flx 170996853
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556694
ZpX_invLaplace_init 497
_Fl2_mul 1924201
_Fl2_pow 671763
_Fl2_rand 113811
_Fl2_sqr 4910809
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11788443
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148174306
_Flxq_neg 366572
_Flxq_one 22440373
_Flxq_pow 22984945
_Flxq_powu 68
_Flxq_powu_i 22926040
_Flxq_rand 6548
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268428139
bounded_order 395370
gener_Flxq 7201
get_Fl_threshold 2334067313
get_Flx_red 989407961
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12215
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 20993671
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 5662138
kron_unpack_Flx_bits_wide 5668199
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8481915
mkF2 7324593
monomial_Flx 941310
random_Flx 2645967
set_Flxq 68922
set_Flxq_pre 69977145
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6389797

Generated by: LCOV version 1.16