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 30604-e5d817ee12) Lines: 2553 2925 87.3 %
Date: 2026-01-10 09:22:24 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449904
Fl2_inv_pre 197388
Fl2_mul_pre 1952901
Fl2_norm_pre 127573
Fl2_pow_pre 671716
Fl2_sqr_pre 4908368
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76058
Fl_Flxq_log 35554
Fl_Xp1_powu 0
Fl_to_Flx 21931132
Flm_to_FlxV 2772
FlvV_polint_tree 2587213
Flv_Flm_polint 104561
Flv_inv 1744449
Flv_invVandermonde 153445
Flv_inv_i 1756457
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21120165
Flv_inv_pre_inplace 19390102
Flv_polint 1485169
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745660
Flv_roots_to_pol 841981
Flv_to_Flx 25485426
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 325162
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 296191
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28965
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171880
FlxV_to_Flm_lg 12967252
FlxV_to_FlxX 397977
FlxV_to_ZXV 606739
FlxV_to_ZXV_inplace 3031537
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9842830
Flx_Fl_mul 7327937
Flx_Fl_mul_pre 18291713
Flx_Fl_mul_to_monic 11855250
Flx_Fl_sub 151678
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785958
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165982
Flx_Flxq_eval 791305
Flx_Flxq_eval_pre 2444591
Flx_Frobenius 86618
Flx_Frobenius_pre 13811683
Flx_Laplace 27345
Flx_Newton 54096
Flx_add 66099409
Flx_addmulmul 416802
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516965
Flx_blocks_Flm 12966520
Flx_composedprod 0
Flx_composedsum 27546
Flx_convol 0
Flx_deflate 420793
Flx_deriv 22982260
Flx_diff1 14445
Flx_digits 0
Flx_div_by_X_x 36524806
Flx_divrem 30444768
Flx_divrem_Barrett 605137
Flx_divrem_Barrettspec 906430
Flx_divrem_basecase 62281285
Flx_divrem_pre 79718106
Flx_double 2443925
Flx_equal 26970976
Flx_eval 20429710
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48567089
Flx_eval_pre 136176515
Flx_extgcd 856685
Flx_extgcd_basecase 6286033
Flx_extgcd_halfgcd 146656
Flx_extgcd_pre 6286011
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109403
Flx_gcd 35010906
Flx_gcd_basecase 85759613
Flx_gcd_pre 87419817
Flx_get_red 14502294
Flx_get_red_pre 97136049
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127071
Flx_halfgcd_all_pre 1127072
Flx_halfgcd_pre 873174
Flx_halfres_basecase 1134149
Flx_halfres_i 1154116
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160553
Flx_integ 0
Flx_integXn 422731
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134393
Flx_invBarrett_pre 158853
Flx_invLaplace 54378
Flx_is_l_pow 8198
Flx_is_smooth 74256
Flx_is_smooth_pre 118517
Flx_is_smooth_squarefree 126737
Flx_is_squarefree 9180782
Flx_lgrenormalizespec 2135258
Flx_matFrobenius 0
Flx_matFrobenius_pre 86570
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907041
Flx_mul 27811617
Flx_mul_pre 379171388
Flx_mulhigh_i 938632
Flx_mullimb 1186040495
Flx_mullimb_ok 3363608158
Flx_mulspec 384746263
Flx_mulspec_Kronecker 7350764
Flx_mulspec_basecase 347095893
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97179
Flx_neg 3264672
Flx_neg_inplace 1777875
Flx_negspec 3264673
Flx_normalize 64772608
Flx_powu 0
Flx_powu_pre 3945
Flx_recip 0
Flx_recipspec 7288986
Flx_red 1881736
Flx_rem 42218440
Flx_rem_basecase 798286206
Flx_rem_pre 922341751
Flx_renormalize 2150597580
Flx_rescale 1117
Flx_resultant 4733592
Flx_resultant_basecase_pre 14598054
Flx_resultant_pre 14600194
Flx_shift 27378743
Flx_shiftip 631539746
Flx_splitting 147554
Flx_sqr 354716
Flx_sqr_pre 275940077
Flx_sqrspec 276063949
Flx_sqrspec_Kronecker 695117
Flx_sqrspec_basecase 275358623
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138635263
Flx_subspec 898963
Flx_to_Flv 66641511
Flx_to_FlxX 71405
Flx_to_ZX 38297206
Flx_to_ZX_inplace 36567372
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204576
Flx_translate1 17105
Flx_translate1_basecase 29198
Flx_triple 1049261
Flx_unscale 0
Flx_val 4473233
Flx_valrem 28430937
Flxn_div 55161
Flxn_div_pre 55183
Flxn_exp 0
Flxn_expint 109387
Flxn_inv 1037
Flxn_mul 75838
Flxn_mul_pre 5158984
Flxn_mulhigh 516905
Flxn_recip 217337
Flxn_red 6329871
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 69450
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 780067
Flxq_auttrace_pre 959870
Flxq_auttrace_sqr 652779
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237864
Flxq_div_pre 2416819
Flxq_easylog 519369
Flxq_inv 335770
Flxq_inv_pre 4286497
Flxq_invsafe 670307
Flxq_invsafe_pre 5429351
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 170664
Flxq_minpoly 45937
Flxq_minpoly_pre 809686
Flxq_mul 13192493
Flxq_mul_pre 188018037
Flxq_norm 443127
Flxq_order 97328
Flxq_pow 948280
Flxq_pow_Frobenius 22416815
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23480284
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232008
Flxq_powers_pre 22434443
Flxq_powu 488338
Flxq_powu_pre 24176386
Flxq_sqr 2763151
Flxq_sqr_pre 274978141
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37666
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 4212703
Flxq_transmul_init 1746317
RgXV_to_FlxV 7
RgX_to_Flx 2249931
Rg_to_F2 1710385
Rg_to_Fl 73209253
Rg_to_Flxq 3588209
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813415
ZXV_to_FlxV 0
ZX_to_Flx 171005204
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556255
ZpX_invLaplace_init 497
_Fl2_mul 1923969
_Fl2_pow 671692
_Fl2_rand 113880
_Fl2_sqr 4908389
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11774684
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146811634
_Flxq_neg 366572
_Flxq_one 22433478
_Flxq_pow 22409407
_Flxq_powu 68
_Flxq_powu_i 22922494
_Flxq_rand 6540
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267089445
bounded_order 395361
gener_Flxq 7201
get_Fl_threshold 2323741930
get_Flx_red 986353027
get_Flxq_field 68902
get_Flxq_star 283439
init_invlaplace 12514
int_to_Flx 12217
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 20989081
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 5659268
kron_unpack_Flx_bits_wide 5669674
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8479950
mkF2 7321662
monomial_Flx 941253
random_Flx 2645932
set_Flxq 68922
set_Flxq_pre 69387127
translate_basecase 42363
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6407148

Generated by: LCOV version 1.16