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 30615-cf6389b5bf) Lines: 2553 2925 87.3 %
Date: 2026-01-16 09:21:08 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449871
Fl2_inv_pre 197371
Fl2_mul_pre 1952862
Fl2_norm_pre 127606
Fl2_pow_pre 671677
Fl2_sqr_pre 4908487
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76056
Fl_Flxq_log 35560
Fl_Xp1_powu 0
Fl_to_Flx 21922122
Flm_to_FlxV 2772
FlvV_polint_tree 2587353
Flv_Flm_polint 104559
Flv_inv 1744437
Flv_invVandermonde 153445
Flv_inv_i 1756440
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 20972790
Flv_inv_pre_inplace 19242614
Flv_polint 1485160
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745654
Flv_roots_to_pol 842027
Flv_to_Flx 25484406
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 7098
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 297187
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28967
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171887
FlxV_to_Flm_lg 12966338
FlxV_to_FlxX 397977
FlxV_to_ZXV 606743
FlxV_to_ZXV_inplace 3031551
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9843110
Flx_Fl_mul 7328230
Flx_Fl_mul_pre 18293434
Flx_Fl_mul_to_monic 11854951
Flx_Fl_sub 151678
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 13164998
Flx_Flxq_eval 791306
Flx_Flxq_eval_pre 2444579
Flx_Frobenius 86619
Flx_Frobenius_pre 13810115
Flx_Laplace 27341
Flx_Newton 54101
Flx_add 66087309
Flx_addmulmul 416804
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516904
Flx_blocks_Flm 12965572
Flx_composedprod 0
Flx_composedsum 27544
Flx_convol 0
Flx_deflate 420785
Flx_deriv 22981125
Flx_diff1 14364
Flx_digits 0
Flx_div_by_X_x 36519778
Flx_divrem 30445830
Flx_divrem_Barrett 605419
Flx_divrem_Barrettspec 906891
Flx_divrem_basecase 62279576
Flx_divrem_pre 79717388
Flx_double 2443925
Flx_equal 27767289
Flx_eval 20403218
Flx_eval2BILspec 603279
Flx_eval_powers_pre 48466756
Flx_eval_pre 136103369
Flx_extgcd 856692
Flx_extgcd_basecase 6285619
Flx_extgcd_halfgcd 146651
Flx_extgcd_pre 6285598
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109401
Flx_gcd 35010645
Flx_gcd_basecase 85745189
Flx_gcd_pre 87398461
Flx_get_red 14500728
Flx_get_red_pre 97923493
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127638
Flx_halfgcd_all_pre 1127640
Flx_halfgcd_pre 873172
Flx_halfres_basecase 1134715
Flx_halfres_i 1154683
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160961
Flx_integ 0
Flx_integXn 422744
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134389
Flx_invBarrett_pre 158851
Flx_invLaplace 54350
Flx_is_l_pow 8246
Flx_is_smooth 74256
Flx_is_smooth_pre 119452
Flx_is_smooth_squarefree 127658
Flx_is_squarefree 9180689
Flx_lgrenormalizespec 2136164
Flx_matFrobenius 0
Flx_matFrobenius_pre 86569
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4908196
Flx_mul 27820759
Flx_mul_pre 380660717
Flx_mulhigh_i 938632
Flx_mullimb 1190592294
Flx_mullimb_ok 3375600981
Flx_mulspec 386239607
Flx_mulspec_Kronecker 7351181
Flx_mulspec_basecase 348743001
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10134
Flx_mulspec_mulii_inflate 294038
Flx_mulspec_quartmulii 97165
Flx_neg 3265007
Flx_neg_inplace 1777875
Flx_negspec 3265032
Flx_normalize 64796300
Flx_powu 0
Flx_powu_pre 3964
Flx_recip 0
Flx_recipspec 7289692
Flx_red 1882657
Flx_rem 42224643
Flx_rem_basecase 800551327
Flx_rem_pre 924385314
Flx_renormalize 2154640038
Flx_rescale 1117
Flx_resultant 4732546
Flx_resultant_basecase_pre 14595217
Flx_resultant_pre 14597547
Flx_shift 27377766
Flx_shiftip 634020320
Flx_splitting 147658
Flx_sqr 354732
Flx_sqr_pre 276360546
Flx_sqrspec 276644588
Flx_sqrspec_Kronecker 695063
Flx_sqrspec_basecase 276832043
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138628589
Flx_subspec 899365
Flx_to_Flv 66636439
Flx_to_FlxX 71405
Flx_to_ZX 38297395
Flx_to_ZX_inplace 36565865
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204547
Flx_translate1 17026
Flx_translate1_basecase 29111
Flx_triple 1049261
Flx_unscale 0
Flx_val 4464554
Flx_valrem 28455253
Flxn_div 55157
Flxn_div_pre 55187
Flxn_exp 0
Flxn_expint 109398
Flxn_inv 1037
Flxn_mul 75842
Flxn_mul_pre 5158784
Flxn_mulhigh 516834
Flxn_recip 217307
Flxn_red 6329805
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 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 780027
Flxq_auttrace_pre 959828
Flxq_auttrace_sqr 652736
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519364
Flxq_inv 335771
Flxq_inv_pre 4286508
Flxq_invsafe 669937
Flxq_invsafe_pre 5428952
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 170667
Flxq_minpoly 45937
Flxq_minpoly_pre 809635
Flxq_mul 13192360
Flxq_mul_pre 189565590
Flxq_norm 443138
Flxq_order 97328
Flxq_pow 948309
Flxq_pow_Frobenius 23218207
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24281699
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232014
Flxq_powers_pre 22431546
Flxq_powu 488336
Flxq_powu_pre 24174893
Flxq_sqr 2763150
Flxq_sqr_pre 275414830
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212508
Flxq_transmul_init 1746306
RgXV_to_FlxV 7
RgX_to_Flx 2249937
Rg_to_F2 1710213
Rg_to_Fl 73208534
Rg_to_Flxq 3588243
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813781
ZXV_to_FlxV 0
ZX_to_Flx 170997909
Z_mod2BIL_Flx 305852
Z_mod2BIL_Flx_2 308782
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556521
ZpX_invLaplace_init 497
_Fl2_mul 1923862
_Fl2_pow 671671
_Fl2_rand 113876
_Fl2_sqr 4908547
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11772635
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148376630
_Flxq_neg 366572
_Flxq_one 22431007
_Flxq_pow 23210796
_Flxq_powu 68
_Flxq_powu_i 22920844
_Flxq_rand 6568
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267522736
bounded_order 395387
gener_Flxq 7201
get_Fl_threshold 2329805402
get_Flx_red 988341775
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12214
int_to_Flx_half 507058
int_to_Flx_quart 107383
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20990522
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 5660041
kron_unpack_Flx_bits_wide 5667758
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8480545
mkF2 7320546
monomial_Flx 941257
random_Flx 2645886
set_Flxq 68922
set_Flxq_pre 70180747
translate_basecase 42279
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6390497

Generated by: LCOV version 1.16