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 30550-07450a7a86) Lines: 2553 2914 87.6 %
Date: 2025-11-18 09:22:37 Functions: 304 359 84.7 %
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_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_divrem 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_halfgcd_all 154
Flx_sqrspec_halfsqri 325
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
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
Flv_prod_pre 3304
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3624
_Flx_composedsum 3882
Flx_powu_pre 3932
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5484
_Flxq_rand 6564
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8204
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 10048
Flx_mulspec_mulii 10144
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11522
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12217
init_invlaplace 12514
Flx_halve 14047
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27354
Flx_composedsum 27551
FlxV_composedsum 28962
Flx_translate1_basecase 29202
Flx_mod_Xn1 31764
FlxV_Flc_mul 34482
Fl_Flxq_log 35538
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45979
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47315
Flv_inv_indir 51282
kron_pack_Flx_spec 53168
Flx_Newton 54101
Flx_invLaplace 54373
Flxn_div 55195
Flxn_div_pre 55210
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65765
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69452
Flx_to_FlxX 71629
Flx_is_smooth 74256
Flxn_mul 75840
Fl2_sqrtn_pre 78496
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_Frobenius 86486
Flx_matFrobenius_pre 86562
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98770
Flv_Flm_polint 103491
FlxC_to_ZXC 104060
Flxq_autsum_sqr 105116
int_to_Flx_quart 107385
Flxn_expint 109399
Flx_fromNewton 109403
Flxq_autsum_mul 112480
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
FlxM_pack_ZM_bits 116239
_Fl2_rand 118452
Flx_is_smooth_pre 118965
Flx_is_smooth_squarefree 127204
Fl2_norm_pre 128225
Flx_invBarrett_basecase 134340
Flx_extgcd_halfgcd 146649
Flx_splitting 147434
Flx_Fl_sub 151834
Flv_invVandermonde 153445
Flx_invBarrett_pre 158801
Flx_inflate 160463
Flxq_log 164217
Flxq_matrix_pow_pre 170660
FlxV_to_Flm 171879
Fl2_inv_pre 202230
Flx_to_int_quartspec 204550
Flxq_sumautsum_pre 210713
Flxn_recip 217401
Flxq_sqrt 230484
Flxq_sqrt_pre 230484
Flxq_powers 232074
FlxqC_red_pre 234845
Flxq_div 237864
Flx_mulspec_mulii_inflate 282090
get_Flxq_star 283446
Z_mod2BIL_Flx 293612
FlxT_red 295153
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx_2 296542
FlxC_eval_powers_pre 325153
Flxq_inv 335772
Flx_sqr 354640
_Flxq_neg 366572
_Flx_add 389834
bounded_order 395387
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416797
Flx_deflate 421027
Flx_integXn 422798
Flxq_norm 443321
Fl2_equal1 463260
Flx_to_int_halfspec 468821
Flxq_powu 488412
int_to_Flx_half 507268
Flxn_mulhigh 517109
Flx_blocks 517188
Flxq_easylog 519352
Flx_eval2BILspec 579091
Flx_divrem_Barrett 604905
FlxV_to_ZXV 606914
Flxq_auttrace_sqr 655326
Flxq_invsafe 670699
kron_pack_Flx_spec_half 688104
_Fl2_pow 691026
Fl2_pow_pre 691042
Flx_sqrspec_Kronecker 691201
Flxq_auttrace_mul 782846
Flx_Flxq_eval 791721
Flv_roots_to_pol 795613
Flxq_minpoly_pre 812002
Flx_extgcd 857258
Flx_halfgcd_pre 875635
Flx_subspec 898327
Flx_divrem_Barrettspec 905800
Flx_mulhigh_i 939050
monomial_Flx 943971
Flxq_pow 948342
Flxq_auttrace_pre 962556
Flx_triple 1049887
Flx_halfgcd_all_i 1129790
Flx_halfgcd_all_pre 1129795
Flx_halfres_basecase 1136867
Flx_halfres_i 1156834
_Flxq_rmul 1461838
Flv_polint 1486588
_Flxq_red 1550928
Rg_to_F2 1710359
Flv_inv 1744798
Flv_producttree 1746001
Flxq_transmul_init 1751250
Flv_inv_i 1756812
Flx_neg_inplace 1778757
Flx_Flv_multieval_tree 1786303
Flx_red 1881621
_Fl2_mul 1988049
Fl2_mul_pre 2017077
Flx_lgrenormalizespec 2134039
RgX_to_Flx 2250309
Flxq_div_pre 2417763
Flx_double 2445177
Flx_Flxq_eval_pre 2448931
FlvV_polint_tree 2540750
random_Flx 2651270
Flxq_sqr 2763156
FlxV_to_ZXV_inplace 3031460
Flx_negspec 3264682
Flx_neg 3264705
Rg_to_Flxq 3598599
Flx_addshift 3728641
ZXT_to_FlxT 3813841
Flxq_transmul 4224730
Flxq_inv_pre 4287537
Flx_val 4494568
Flx_resultant 4735167
Flx_mod_Xnm1 5057253
_Fl2_sqr 5080615
Fl2_sqr_pre 5080633
Flxn_mul_pre 5168832
Flxq_invsafe_pre 5432412
kron_unpack_Flx_bits_wide 5610496
kron_unpack_Flx_bits_narrow 5658126
Flx_extgcd_basecase 6289645
Flx_extgcd_pre 6289656
Flxn_red 6340079
zx_to_Flx 6537849
Flx_addspec 7257702
Flx_mulspec_Kronecker 7294801
Flx_recipspec 7302548
Flx_Fl_mul 7327619
Z_to_Flx 7561606
mkF2 7569840
maxbitcoeffpol 8407823
Flx_is_squarefree 9184122
Flx_Fl_add 10029490
_Flx_mul 11006992
Flx_Fl_mul_to_monic 12029729
Flx_blocks_Flm 12983554
FlxV_to_Flm_lg 12984231
Flx_FlxqV_eval_pre 13183091
Flxq_mul 13192538
Flx_Frobenius_pre 13816865
Flx_get_red 14507478
Flx_resultant_basecase_pre 14621521
Flx_resultant_pre 14623476
Flx_Fl_mul_pre 18298686
Flv_inv_pre_inplace 19717681
Flx_eval 20416697
kron_pack_Flx_spec_bits 20873954
Fl_to_Flx 21217520
Flv_inv_pre_indir 21441888
_Flxq_pow 22371854
Flxq_pow_Frobenius 22379264
_Flxq_one 22449780
Flxq_powers_pre 22449835
Flx_deriv 22988672
_Flxq_powu_i 23112568
Flxq_pow_pre 23442770
Flxq_powu_pre 24368803
Flv_to_Flx 25513995
Flx_equal 26925798
Flx_shift 27414367
Flx_valrem 27437246
Flx_mul 27834533
Flx_divrem 30452825
Flx_gcd 34259984
Flx_div_by_X_x 34755052
Flx_to_ZX_inplace 36578677
Flx_to_ZX 38306659
Flx_rem 42226787
Flx_eval_powers_pre 48633124
Flx_divrem_basecase 62324966
Flx_normalize 63979171
Flx_add 64913385
Flx_to_Flv 66699918
set_Flxq_pre 69560734
Rg_to_Fl 73222923
Flx_divrem_pre 79766653
Flx_gcd_basecase 85210617
Flx_gcd_pre 86876582
Flx_get_red_pre 97339218
Flx_eval_pre 136394121
Flx_sub 138714397
_Flxq_mul 147934837
ZX_to_Flx 171037205
Flxq_mul_pre 189179206
_Flxq_sqr 270313904
Flxq_sqr_pre 278313111
Flx_sqrspec_basecase 278739036
Flx_sqr_pre 279333606
Flx_sqrspec 279453407
Flx_mulspec_basecase 345256533
Flx_mul_pre 377277152
Flx_mulspec 382857956
Flx_shiftip 632792892
Flx_rem_basecase 801511749
Flx_rem_pre 926172962
get_Flx_red 990232489
Flx_mullimb 1187258704
Flx_renormalize 2153389125
get_Fl_threshold 2329589122
Flx_mullimb_ok 3382586454

Generated by: LCOV version 1.16