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 30703-cd958ce78c) Lines: 2553 2925 87.3 %
Date: 2026-02-23 09:22:43 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450234
Fl2_inv_pre 197558
Fl2_mul_pre 1953304
Fl2_norm_pre 127598
Fl2_pow_pre 672236
Fl2_sqr_pre 4910833
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76056
Fl_Flxq_log 35559
Fl_Xp1_powu 0
Fl_to_Flx 21951889
Flm_to_FlxV 2772
FlvV_polint_tree 2587592
Flv_Flm_polint 104559
Flv_inv 1744483
Flv_invVandermonde 153445
Flv_inv_i 1756497
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21106342
Flv_inv_pre_inplace 19385489
Flv_polint 1485200
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745685
Flv_roots_to_pol 842151
Flv_to_Flx 25486549
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 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 291545
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28970
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171873
FlxV_to_Flm_lg 12967793
FlxV_to_FlxX 397987
FlxV_to_ZXV 606839
FlxV_to_ZXV_inplace 3031593
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9844013
Flx_Fl_mul 7326801
Flx_Fl_mul_pre 18098683
Flx_Fl_mul_to_monic 11855554
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785992
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166678
Flx_Flxq_eval 791337
Flx_Flxq_eval_pre 2444528
Flx_Frobenius 86619
Flx_Frobenius_pre 13813137
Flx_Laplace 27352
Flx_Newton 54109
Flx_add 65997909
Flx_addmulmul 358990
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526148
Flx_blocks_Flm 12967442
Flx_composedprod 0
Flx_composedsum 27550
Flx_convol 0
Flx_deflate 420793
Flx_deriv 22980760
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36607999
Flx_divrem 30444116
Flx_divrem_Barrett 603873
Flx_divrem_Barrettspec 905224
Flx_divrem_basecase 61213348
Flx_divrem_pre 78653175
Flx_double 2299328
Flx_equal 26907520
Flx_eval 20447813
Flx_eval2BILspec 603293
Flx_eval_powers_pre 48604685
Flx_eval_pre 136178148
Flx_extgcd 856778
Flx_extgcd_basecase 6182493
Flx_extgcd_halfgcd 126073
Flx_extgcd_pre 6182479
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109407
Flx_gcd 35031341
Flx_gcd_basecase 85793596
Flx_gcd_pre 87446436
Flx_get_red 14504340
Flx_get_red_pre 97079969
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087567
Flx_halfgcd_all_pre 1087568
Flx_halfgcd_pre 873144
Flx_halfres_basecase 1094644
Flx_halfres_i 1114611
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160182
Flx_integ 0
Flx_integXn 422793
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158851
Flx_invLaplace 54364
Flx_is_l_pow 8154
Flx_is_smooth 74256
Flx_is_smooth_pre 118333
Flx_is_smooth_squarefree 126487
Flx_is_squarefree 9180955
Flx_lgrenormalizespec 2132633
Flx_matFrobenius 0
Flx_matFrobenius_pre 86565
Flx_mod_Xn1 31507
Flx_mod_Xnm1 4907551
Flx_mul 26708417
Flx_mul_pre 377145691
Flx_mulhigh_i 947964
Flx_mullimb 1189074378
Flx_mullimb_ok 3343453333
Flx_mulspec 382708850
Flx_mulspec_Kronecker 7331010
Flx_mulspec_basecase 345282753
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294045
Flx_mulspec_quartmulii 97163
Flx_neg 3263308
Flx_neg_inplace 1767761
Flx_negspec 3263302
Flx_normalize 64869468
Flx_powu 0
Flx_powu_pre 3875
Flx_recip 0
Flx_recipspec 7286296
Flx_red 1877676
Flx_rem 42228100
Flx_rem_basecase 798497257
Flx_rem_pre 922403084
Flx_renormalize 2142348170
Flx_rescale 1117
Flx_resultant 4731712
Flx_resultant_basecase_pre 14596754
Flx_resultant_pre 14598471
Flx_shift 27397601
Flx_shiftip 629805347
Flx_splitting 147037
Flx_sqr 354626
Flx_sqr_pre 275544957
Flx_sqrspec 275777434
Flx_sqrspec_Kronecker 676854
Flx_sqrspec_basecase 275789107
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136423436
Flx_subspec 897656
Flx_to_Flv 66644158
Flx_to_FlxX 71405
Flx_to_ZX 38299546
Flx_to_ZX_inplace 36527746
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204543
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 984021
Flx_unscale 0
Flx_val 4473911
Flx_valrem 28511264
Flxn_div 56318
Flxn_div_pre 56339
Flxn_exp 0
Flxn_expint 109394
Flxn_inv 1037
Flxn_mul 75849
Flxn_mul_pre 5178788
Flxn_mulhigh 526078
Flxn_recip 217387
Flxn_red 6360816
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69410
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 780128
Flxq_auttrace_pre 959911
Flxq_auttrace_sqr 652801
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2313025
Flxq_easylog 519365
Flxq_inv 335766
Flxq_inv_pre 4182659
Flxq_invsafe 670487
Flxq_invsafe_pre 5325718
Flxq_is2npower 0
Flxq_issquare 404459
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 170663
Flxq_minpoly 45937
Flxq_minpoly_pre 809666
Flxq_mul 13192548
Flxq_mul_pre 187766126
Flxq_norm 443100
Flxq_order 97322
Flxq_pow 932804
Flxq_pow_Frobenius 22362736
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23410964
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232010
Flxq_powers_pre 22436414
Flxq_powu 488341
Flxq_powu_pre 24176985
Flxq_sqr 2763153
Flxq_sqr_pre 274604713
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4212451
Flxq_transmul_init 1746254
RgXV_to_FlxV 7
RgX_to_Flx 2205403
Rg_to_F2 1710316
Rg_to_Fl 72937423
Rg_to_Flxq 3588231
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3796849
ZXV_to_FlxV 0
ZX_to_Flx 170950669
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556770
ZpX_invLaplace_init 497
_Fl2_mul 1924273
_Fl2_pow 672232
_Fl2_rand 113762
_Fl2_sqr 4910865
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11792454
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146814461
_Flxq_neg 366572
_Flxq_one 22438146
_Flxq_pow 22355329
_Flxq_powu 68
_Flxq_powu_i 22922892
_Flxq_rand 6568
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266943260
bounded_order 393984
gener_Flxq 7201
get_Fl_threshold 2318994753
get_Flx_red 985347937
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20931810
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 5621234
kron_unpack_Flx_bits_wide 5667830
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8441309
mkF2 7324109
monomial_Flx 941213
random_Flx 2645932
set_Flxq 68922
set_Flxq_pre 69326889
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6410627

Generated by: LCOV version 1.16