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 30617-dd5c93fb0e) Lines: 2553 2925 87.3 %
Date: 2026-01-21 09:23:33 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449467
Fl2_inv_pre 197273
Fl2_mul_pre 1952075
Fl2_norm_pre 127574
Fl2_pow_pre 671217
Fl2_sqr_pre 4908751
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76042
Fl_Flxq_log 35550
Fl_Xp1_powu 0
Fl_to_Flx 21932920
Flm_to_FlxV 2772
FlvV_polint_tree 2587601
Flv_Flm_polint 104561
Flv_inv 1744482
Flv_invVandermonde 153445
Flv_inv_i 1756494
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21055346
Flv_inv_pre_inplace 19331758
Flv_polint 1485202
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745691
Flv_roots_to_pol 842146
Flv_to_Flx 25485996
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 325160
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 297678
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28968
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171879
FlxV_to_Flm_lg 12966954
FlxV_to_FlxX 397977
FlxV_to_ZXV 606743
FlxV_to_ZXV_inplace 3031588
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9841592
Flx_Fl_mul 7327289
Flx_Fl_mul_pre 18291351
Flx_Fl_mul_to_monic 11855887
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785993
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165756
Flx_Flxq_eval 791310
Flx_Flxq_eval_pre 2444615
Flx_Frobenius 86618
Flx_Frobenius_pre 13811095
Flx_Laplace 27347
Flx_Newton 54107
Flx_add 66100325
Flx_addmulmul 416798
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 516835
Flx_blocks_Flm 12966410
Flx_composedprod 0
Flx_composedsum 27546
Flx_convol 0
Flx_deflate 420794
Flx_deriv 22981644
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36547748
Flx_divrem 30445096
Flx_divrem_Barrett 605558
Flx_divrem_Barrettspec 907143
Flx_divrem_basecase 62279203
Flx_divrem_pre 79716996
Flx_double 2443925
Flx_equal 26940882
Flx_eval 20402820
Flx_eval2BILspec 603293
Flx_eval_powers_pre 48619239
Flx_eval_pre 136123466
Flx_extgcd 856687
Flx_extgcd_basecase 6286212
Flx_extgcd_halfgcd 146650
Flx_extgcd_pre 6286214
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109404
Flx_gcd 35019322
Flx_gcd_basecase 85755692
Flx_gcd_pre 87410818
Flx_get_red 14501738
Flx_get_red_pre 97103293
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1127026
Flx_halfgcd_all_pre 1127027
Flx_halfgcd_pre 873228
Flx_halfres_basecase 1134107
Flx_halfres_i 1154071
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160784
Flx_integ 0
Flx_integXn 422752
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134390
Flx_invBarrett_pre 158851
Flx_invLaplace 54380
Flx_is_l_pow 8162
Flx_is_smooth 74256
Flx_is_smooth_pre 118508
Flx_is_smooth_squarefree 126682
Flx_is_squarefree 9180616
Flx_lgrenormalizespec 2136572
Flx_matFrobenius 0
Flx_matFrobenius_pre 86566
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4908298
Flx_mul 27810750
Flx_mul_pre 379067166
Flx_mulhigh_i 938498
Flx_mullimb 1186617436
Flx_mullimb_ok 3363903993
Flx_mulspec 384643342
Flx_mulspec_Kronecker 7352311
Flx_mulspec_basecase 347138434
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10141
Flx_mulspec_mulii_inflate 294045
Flx_mulspec_quartmulii 97163
Flx_neg 3265090
Flx_neg_inplace 1777875
Flx_negspec 3265088
Flx_normalize 64841727
Flx_powu 0
Flx_powu_pre 3972
Flx_recip 0
Flx_recipspec 7290571
Flx_red 1883061
Flx_rem 42223670
Flx_rem_basecase 798184207
Flx_rem_pre 922083869
Flx_renormalize 2150873446
Flx_rescale 1117
Flx_resultant 4733723
Flx_resultant_basecase_pre 14598323
Flx_resultant_pre 14600438
Flx_shift 27378559
Flx_shiftip 631512007
Flx_splitting 147724
Flx_sqr 354745
Flx_sqr_pre 275559447
Flx_sqrspec 275810444
Flx_sqrspec_Kronecker 695146
Flx_sqrspec_basecase 275936572
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138628805
Flx_subspec 899543
Flx_to_Flv 66640850
Flx_to_FlxX 71405
Flx_to_ZX 38298254
Flx_to_ZX_inplace 36565558
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204545
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 1049261
Flx_unscale 0
Flx_val 4479761
Flx_valrem 28485688
Flxn_div 55151
Flxn_div_pre 55176
Flxn_exp 0
Flxn_expint 109401
Flxn_inv 1037
Flxn_mul 75850
Flxn_mul_pre 5158534
Flxn_mulhigh 516751
Flxn_recip 217312
Flxn_red 6329175
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 20698
Flxq_autpow_pre 69455
Flxq_autpow_sqr 47324
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112490
Flxq_autsum_pre 98774
Flxq_autsum_sqr 105124
Flxq_auttrace 0
Flxq_auttrace_mul 780110
Flxq_auttrace_pre 959863
Flxq_auttrace_sqr 652814
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416845
Flxq_easylog 519366
Flxq_inv 335770
Flxq_inv_pre 4286527
Flxq_invsafe 670442
Flxq_invsafe_pre 5429542
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 809722
Flxq_mul 13192544
Flxq_mul_pre 187894754
Flxq_norm 443134
Flxq_order 97328
Flxq_pow 948278
Flxq_pow_Frobenius 22390102
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23453566
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232014
Flxq_powers_pre 22433166
Flxq_powu 488339
Flxq_powu_pre 24172711
Flxq_sqr 2763153
Flxq_sqr_pre 274625479
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 4212717
Flxq_transmul_init 1746422
RgXV_to_FlxV 7
RgX_to_Flx 2249946
Rg_to_F2 1710224
Rg_to_Fl 73209263
Rg_to_Flxq 3588279
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813881
ZXV_to_FlxV 0
ZX_to_Flx 170998358
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556598
ZpX_invLaplace_init 497
_Fl2_mul 1923069
_Fl2_pow 671216
_Fl2_rand 113728
_Fl2_sqr 4908834
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11779222
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146709316
_Flxq_neg 366572
_Flxq_one 22432721
_Flxq_pow 22382689
_Flxq_powu 68
_Flxq_powu_i 22919062
_Flxq_rand 6560
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266757130
bounded_order 395387
gener_Flxq 7201
get_Fl_threshold 2322682584
get_Flx_red 986068540
get_Flxq_field 68902
get_Flxq_star 283438
init_invlaplace 12514
int_to_Flx 12213
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 20993365
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 5660600
kron_unpack_Flx_bits_wide 5668462
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8481786
mkF2 7320424
monomial_Flx 941305
random_Flx 2645994
set_Flxq 68922
set_Flxq_pre 69357492
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6414618

Generated by: LCOV version 1.16