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
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1116
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2068
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3915
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6581
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8228
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10145
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23159
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27498
Flx_composedsum 27692
FlxV_composedsum 28982
Flx_mod_Xn1 31626
FlxV_Flc_mul 34482
Fl_Flxq_log 35567
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47243
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54389
Flx_invLaplace 54651
Flxn_div 56598
Flxn_div_pre 56629
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69414
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75987
Fl2_sqrtn_pre 76093
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86558
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97166
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104559
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flxn_expint 109541
Flx_fromNewton 109547
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113889
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118977
Flx_extgcd_halfgcd 126088
Flx_is_smooth_squarefree 127157
Flx_invBarrett_basecase 134412
Flx_splitting 147319
Flx_Fl_sub 151687
Flv_invVandermonde 153445
Flx_invBarrett_pre 158871
Flx_inflate 160342
Flxq_log 164209
Flxq_matrix_pow_pre 170649
FlxV_to_Flm 171862
Fl2_inv_pre 197436
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210695
Flxn_recip 218089
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232126
FlxqC_red_pre 234855
get_Flxq_star 283432
Flx_mulspec_mulii_inflate 294048
FlxT_red 294135
Flxq_sumautsum_sqr 295218
Z_mod2BIL_Flx 305862
Z_mod2BIL_Flx_2 308792
FlxC_eval_powers_pre 325147
Flxq_inv 335789
Flx_addmulmul 359025
_Flxq_neg 366572
Flx_sqr 370242
_Flxq_add 389834
bounded_order 394026
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421318
Flx_integXn 423359
Flxq_norm 443241
Fl2_equal1 450049
Flx_to_int_halfspec 468590
Flxq_powu 488365
int_to_Flx_half 507058
Flxq_easylog 519457
Flx_blocks 527561
Flxn_mulhigh 527661
Flx_triple 551294
Flx_eval2BILspec 603299
Flx_divrem_Barrett 604591
FlxV_to_ZXV 609496
Flxq_auttrace_sqr 652461
Flx_diff1 660423
Flx_translate1 663130
Flx_sqrspec_Kronecker 670264
Flxq_invsafe 670382
_Fl2_pow 671932
Fl2_pow_pre 671948
Flx_translate1_basecase 675200
kron_pack_Flx_spec_half 688104
translate_basecase 688376
Flxq_auttrace_mul 779728
Flx_Flxq_eval 791471
Flxq_minpoly_pre 809820
Flv_roots_to_pol 841996
Flx_extgcd 857834
Flx_halfgcd_pre 873319
Flx_subspec 898518
Flx_divrem_Barrettspec 906139
Flxq_pow 933188
monomial_Flx 941454
Flx_mulhigh_i 950192
Flxq_auttrace_pre 960354
Flx_halfgcd_all_i 1088224
Flx_halfgcd_all_pre 1088226
Flx_halfres_basecase 1095300
Flx_halfres_i 1115268
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485448
_Flxq_red 1550928
Rg_to_F2 1715117
Flv_inv 1744736
Flv_producttree 1745931
Flxq_transmul_init 1746594
Flv_inv_i 1756743
Flx_Flv_multieval_tree 1786231
Flx_neg_inplace 1799550
Flx_red 1881314
_Fl2_mul 1924418
Flx_lgrenormalizespec 2134563
RgX_to_Flx 2209609
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444870
FlvV_polint_tree 2587687
random_Flx 2646489
Flxq_sqr 2763479
FlxV_to_ZXV_inplace 3032525
Rg_to_Flxq 3461449
Flx_addshift 3768149
ZXT_to_FlxT 3798127
Flx_neg 4175548
Flx_negspec 4175553
Flxq_inv_pre 4183815
Flxq_transmul 4212748
Flx_val 4477292
Flx_resultant 4609294
Flx_mod_Xnm1 4908373
Fl2_sqr_pre 4908629
_Fl2_sqr 4908723
Flxn_mul_pre 5184091
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326791
kron_unpack_Flx_bits_narrow 5623223
kron_unpack_Flx_bits_wide 5696515
Flx_extgcd_pre 6184600
Flx_extgcd_basecase 6184613
Flxn_red 6368804
zx_to_Flx 6410925
Flx_recipspec 7289852
Flx_addspec 7337710
Flx_mulspec_Kronecker 7367850
Z_to_Flx 7593891
maxbitcoeffpol 8472501
Flx_is_squarefree 9207445
Flx_Fl_mul 9423278
Flx_Fl_add 9846240
_Flx_mul 11774526
Flx_Fl_mul_to_monic 11860303
Flx_blocks_Flm 12970629
FlxV_to_Flm_lg 12971874
Flx_FlxqV_eval_pre 13170234
Flx_Frobenius_pre 13818815
Flx_resultant_basecase_pre 14474834
Flx_resultant_pre 14476874
Flx_get_red 14508119
Fl2_mul_pre 17092779
Flxq_mul 18079978
Flv_inv_pre_inplace 19304207
Flx_Fl_mul_pre 20198963
Flx_eval 20412756
kron_pack_Flx_spec_bits 20997984
Flv_inv_pre_indir 21034247
Fl_to_Flx 21927971
_Flxq_one 22442542
Flxq_powers_pre 22443243
_Flxq_pow 22622714
Flxq_pow_Frobenius 22630121
Flx_deriv 22891774
_Flxq_powu_i 22932469
Flxq_pow_pre 23678688
Flxq_powu_pre 24184085
Flv_to_Flx 25491395
Flx_equal 26448504
Flx_mul 26720049
Flx_shift 27404703
mkF2 27664488
Flx_valrem 28457377
Flx_divrem 30453839
Flx_gcd 35038533
Flx_to_ZX_inplace 36549787
Flx_div_by_X_x 36579232
Flx_to_ZX 38384659
Flx_rem 42225104
Flx_eval_powers_pre 48594670
Flx_divrem_basecase 61244057
Flx_normalize 64824318
Flx_to_Flv 66650512
set_Flxq_pre 69605761
Rg_to_Fl 73086501
Flx_add 73800417
Flx_divrem_pre 78682945
Flx_gcd_basecase 85816548
Flx_gcd_pre 87473189
Fl2_norm_pre 97118616
Flx_get_red_pre 97362091
Flx_eval_pre 136142560
Flx_sub 136576696
_Flxq_mul 147321206
ZX_to_Flx 171070594
Flxq_mul_pre 191762850
_Flxq_sqr 266976795
Flxq_sqr_pre 273242808
Flx_sqr_pre 274208599
Flx_sqrspec 274495844
Flx_sqrspec_basecase 274698947
Flx_mulspec_basecase 346933403
Flx_mul_pre 381016321
Flx_mulspec 386636575
Flx_shiftip 630093235
Flx_rem_basecase 798347860
Flx_rem_pre 924158367
get_Flx_red 987109218
Flx_mullimb 1185709097
Flx_renormalize 2165267441
get_Fl_threshold 2318271906
Flx_mullimb_ok 3358320025

Generated by: LCOV version 1.16