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 30835-e55edf4b45) Lines: 2553 2925 87.3 %
Date: 2026-04-24 09:27:20 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450049
Fl2_inv_pre 197436
Fl2_mul_pre 17092779
Fl2_norm_pre 97118616
Fl2_pow_pre 671948
Fl2_sqr_pre 4908629
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76093
Fl_Flxq_log 35567
Fl_Xp1_powu 0
Fl_to_Flx 21927971
Flm_to_FlxV 2772
FlvV_polint_tree 2587687
Flv_Flm_polint 104559
Flv_inv 1744736
Flv_invVandermonde 153445
Flv_inv_i 1756743
Flv_inv_indir 52212
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21034247
Flv_inv_pre_inplace 19304207
Flv_polint 1485448
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745931
Flv_roots_to_pol 841996
Flv_to_Flx 25491395
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 325147
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 294135
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28982
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171862
FlxV_to_Flm_lg 12971874
FlxV_to_FlxX 397987
FlxV_to_ZXV 609496
FlxV_to_ZXV_inplace 3032525
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846240
Flx_Fl_mul 9423278
Flx_Fl_mul_pre 20198963
Flx_Fl_mul_to_monic 11860303
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786231
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170234
Flx_Flxq_eval 791471
Flx_Flxq_eval_pre 2444870
Flx_Frobenius 86619
Flx_Frobenius_pre 13818815
Flx_Laplace 27498
Flx_Newton 54389
Flx_add 73800417
Flx_addmulmul 359025
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527561
Flx_blocks_Flm 12970629
Flx_composedprod 0
Flx_composedsum 27692
Flx_convol 0
Flx_deflate 421318
Flx_deriv 22891774
Flx_diff1 660423
Flx_digits 0
Flx_div_by_X_x 36579232
Flx_divrem 30453839
Flx_divrem_Barrett 604591
Flx_divrem_Barrettspec 906139
Flx_divrem_basecase 61244057
Flx_divrem_pre 78682945
Flx_double 1179459
Flx_equal 26448504
Flx_eval 20412756
Flx_eval2BILspec 603299
Flx_eval_powers_pre 48594670
Flx_eval_pre 136142560
Flx_extgcd 857834
Flx_extgcd_basecase 6184613
Flx_extgcd_halfgcd 126088
Flx_extgcd_pre 6184600
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109547
Flx_gcd 35038533
Flx_gcd_basecase 85816548
Flx_gcd_pre 87473189
Flx_get_red 14508119
Flx_get_red_pre 97362091
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088224
Flx_halfgcd_all_pre 1088226
Flx_halfgcd_pre 873319
Flx_halfres_basecase 1095300
Flx_halfres_i 1115268
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160342
Flx_integ 0
Flx_integXn 423359
Flx_invBarrett 0
Flx_invBarrett_Newton 23159
Flx_invBarrett_basecase 134412
Flx_invBarrett_pre 158871
Flx_invLaplace 54651
Flx_is_l_pow 8228
Flx_is_smooth 74256
Flx_is_smooth_pre 118977
Flx_is_smooth_squarefree 127157
Flx_is_squarefree 9207445
Flx_lgrenormalizespec 2134563
Flx_matFrobenius 0
Flx_matFrobenius_pre 86558
Flx_mod_Xn1 31626
Flx_mod_Xnm1 4908373
Flx_mul 26720049
Flx_mul_pre 381016321
Flx_mulhigh_i 950192
Flx_mullimb 1185709097
Flx_mullimb_ok 3358320025
Flx_mulspec 386636575
Flx_mulspec_Kronecker 7367850
Flx_mulspec_basecase 346933403
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294048
Flx_mulspec_quartmulii 97166
Flx_neg 4175548
Flx_neg_inplace 1799550
Flx_negspec 4175553
Flx_normalize 64824318
Flx_powu 0
Flx_powu_pre 3915
Flx_recip 0
Flx_recipspec 7289852
Flx_red 1881314
Flx_rem 42225104
Flx_rem_basecase 798347860
Flx_rem_pre 924158367
Flx_renormalize 2165267441
Flx_rescale 1116
Flx_resultant 4609294
Flx_resultant_basecase_pre 14474834
Flx_resultant_pre 14476874
Flx_shift 27404703
Flx_shiftip 630093235
Flx_splitting 147319
Flx_sqr 370242
Flx_sqr_pre 274208599
Flx_sqrspec 274495844
Flx_sqrspec_Kronecker 670264
Flx_sqrspec_basecase 274698947
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136576696
Flx_subspec 898518
Flx_to_Flv 66650512
Flx_to_FlxX 71405
Flx_to_ZX 38384659
Flx_to_ZX_inplace 36549787
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 663130
Flx_translate1_basecase 675200
Flx_triple 551294
Flx_unscale 0
Flx_val 4477292
Flx_valrem 28457377
Flxn_div 56598
Flxn_div_pre 56629
Flxn_exp 0
Flxn_expint 109541
Flxn_inv 1037
Flxn_mul 75987
Flxn_mul_pre 5184091
Flxn_mulhigh 527661
Flxn_recip 218089
Flxn_red 6368804
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 69414
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 779728
Flxq_auttrace_pre 960354
Flxq_auttrace_sqr 652461
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519457
Flxq_inv 335789
Flxq_inv_pre 4183815
Flxq_invsafe 670382
Flxq_invsafe_pre 5326791
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164209
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170649
Flxq_minpoly 45937
Flxq_minpoly_pre 809820
Flxq_mul 18079978
Flxq_mul_pre 191762850
Flxq_norm 443241
Flxq_order 97322
Flxq_pow 933188
Flxq_pow_Frobenius 22630121
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23678688
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232126
Flxq_powers_pre 22443243
Flxq_powu 488365
Flxq_powu_pre 24184085
Flxq_sqr 2763479
Flxq_sqr_pre 273242808
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212748
Flxq_transmul_init 1746594
RgXV_to_FlxV 7
RgX_to_Flx 2209609
Rg_to_F2 1715117
Rg_to_Fl 73086501
Rg_to_Flxq 3461449
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798127
ZXV_to_FlxV 0
ZX_to_Flx 171070594
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593891
ZpX_invLaplace_init 497
_Fl2_mul 1924418
_Fl2_pow 671932
_Fl2_rand 113889
_Fl2_sqr 4908723
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11774526
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147321206
_Flxq_neg 366572
_Flxq_one 22442542
_Flxq_pow 22622714
_Flxq_powu 68
_Flxq_powu_i 22932469
_Flxq_rand 6581
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266976795
bounded_order 394026
gener_Flxq 7201
get_Fl_threshold 2318271906
get_Flx_red 987109218
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12214
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 20997984
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 5623223
kron_unpack_Flx_bits_wide 5696515
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8472501
mkF2 27664488
monomial_Flx 941454
random_Flx 2646489
set_Flxq 68922
set_Flxq_pre 69605761
translate_basecase 688376
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6410925

Generated by: LCOV version 1.16