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 30631-5f55634266) Lines: 2553 2925 87.3 %
Date: 2026-01-24 09:23:06 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 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2067
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 3948
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6547
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8167
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10147
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14368
Flx_translate1 17028
Flx_halfres_split 19964
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21901
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 27349
Flx_composedsum 27559
FlxV_composedsum 28965
Flx_translate1_basecase 29114
Flx_mod_Xn1 31510
FlxV_Flc_mul 34482
Fl_Flxq_log 35552
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40915
translate_basecase 42285
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47324
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54110
Flx_invLaplace 55550
Flxn_div 56380
Flxn_div_pre 56389
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69456
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75848
Fl2_sqrtn_pre 76048
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86566
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97163
Flxq_order 97328
Flxq_autsum_pre 98774
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 105124
int_to_Flx_quart 107385
Flx_fromNewton 109400
Flxn_expint 109402
Flxq_autsum_mul 112490
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113881
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118339
Flx_is_smooth_squarefree 126482
Fl2_norm_pre 127589
Flx_invBarrett_basecase 134392
Flx_extgcd_halfgcd 146650
Flx_splitting 148717
Flx_Fl_sub 151679
Flv_invVandermonde 153445
Flx_invBarrett_pre 158853
Flx_inflate 160519
Flxq_log 164210
Flxq_matrix_pow_pre 170660
FlxV_to_Flm 171872
Fl2_inv_pre 197183
Flx_to_int_quartspec 204544
Flxq_sumautsum_pre 210713
Flxn_recip 217487
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232002
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294046
Flxq_sumautsum_sqr 295314
FlxT_red 296219
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
FlxC_eval_powers_pre 325158
Flxq_inv 335767
Flx_sqr 354722
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395373
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416785
Flx_deflate 420785
Flx_integXn 422852
Flxq_norm 443136
Fl2_equal1 449605
Flx_to_int_halfspec 468590
Flxq_powu 488332
int_to_Flx_half 507058
Flxq_easylog 519370
Flxn_mulhigh 526340
Flx_blocks 526394
Flx_eval2BILspec 603295
Flx_divrem_Barrett 605138
FlxV_to_ZXV 606734
Flxq_auttrace_sqr 652855
Flxq_invsafe 670063
_Fl2_pow 671241
Fl2_pow_pre 671245
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695091
Flxq_auttrace_mul 780176
Flx_Flxq_eval 791296
Flxq_minpoly_pre 809656
Flv_roots_to_pol 842140
Flx_extgcd 856689
Flx_halfgcd_pre 873030
Flx_subspec 899083
Flx_divrem_Barrettspec 906708
monomial_Flx 941104
Flxq_pow 948242
Flx_mulhigh_i 948603
Flxq_auttrace_pre 959880
Flx_triple 1049261
Flx_halfgcd_all_i 1126667
Flx_halfgcd_all_pre 1126674
Flx_halfres_basecase 1133747
Flx_halfres_i 1153713
_Flxq_rmul 1461838
Flv_polint 1485135
_Flxq_red 1550928
Rg_to_F2 1710191
Flv_inv 1744419
Flv_producttree 1745625
Flxq_transmul_init 1746020
Flv_inv_i 1756427
Flx_neg_inplace 1780010
Flx_Flv_multieval_tree 1785923
Flx_red 1881811
_Fl2_mul 1924100
Fl2_mul_pre 1953127
Flx_lgrenormalizespec 2135436
RgX_to_Flx 2249941
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444571
FlvV_polint_tree 2587453
random_Flx 2645778
Flxq_sqr 2763153
FlxV_to_ZXV_inplace 3031528
Flx_neg 3264769
Flx_negspec 3264769
Rg_to_Flxq 3588241
Flx_addshift 3729063
ZXT_to_FlxT 3813468
Flxq_transmul 4212022
Flxq_inv_pre 4286515
Flx_val 4468442
Flx_resultant 4733194
Flx_mod_Xnm1 4908408
Fl2_sqr_pre 4909780
_Fl2_sqr 4909948
Flxn_mul_pre 5181373
Flxq_invsafe_pre 5429145
kron_unpack_Flx_bits_narrow 5664959
kron_unpack_Flx_bits_wide 5668143
Flx_extgcd_basecase 6285790
Flx_extgcd_pre 6285805
Flxn_red 6364736
zx_to_Flx 6403983
Flx_addspec 7259538
Flx_recipspec 7288556
mkF2 7322083
Flx_Fl_mul 7327308
Flx_mulspec_Kronecker 7356985
Z_to_Flx 7556405
maxbitcoeffpol 8485568
Flx_is_squarefree 9180794
Flx_Fl_add 9845109
_Flx_mul 11794341
Flx_Fl_mul_to_monic 11855513
Flx_blocks_Flm 12967353
FlxV_to_Flm_lg 12967579
Flx_FlxqV_eval_pre 13166410
Flxq_mul 13192392
Flx_Frobenius_pre 13812634
Flx_get_red 14503804
Flx_resultant_basecase_pre 14596987
Flx_resultant_pre 14599100
Flx_Fl_mul_pre 18290315
Flv_inv_pre_inplace 19342014
Flx_eval 20437064
kron_pack_Flx_spec_bits 21000361
Flv_inv_pre_indir 21059970
Fl_to_Flx 21955883
_Flxq_pow 22382663
Flxq_pow_Frobenius 22390076
Flxq_powers_pre 22436969
_Flxq_one 22438462
_Flxq_powu_i 22922758
Flx_deriv 22982508
Flxq_pow_pre 23453493
Flxq_powu_pre 24176901
Flv_to_Flx 25488271
Flx_equal 26943707
Flx_shift 27398464
Flx_mul 27806428
Flx_valrem 28497670
Flx_divrem 30446859
Flx_gcd 35034957
Flx_to_ZX_inplace 36567023
Flx_div_by_X_x 36580807
Flx_to_ZX 38299189
Flx_rem 42228678
Flx_eval_powers_pre 48538802
Flx_divrem_basecase 62274236
Flx_normalize 64844819
Flx_add 66154137
Flx_to_Flv 66644060
set_Flxq_pre 69369447
Rg_to_Fl 73209941
Flx_divrem_pre 79715258
Flx_gcd_basecase 85793421
Flx_gcd_pre 87448870
Flx_get_red_pre 97116865
Flx_eval_pre 136157312
Flx_sub 138635837
_Flxq_mul 146823775
ZX_to_Flx 171023780
Flxq_mul_pre 188006707
_Flxq_sqr 267025996
Flxq_sqr_pre 274885730
Flx_sqr_pre 275822336
Flx_sqrspec 276092236
Flx_sqrspec_basecase 276162000
Flx_mulspec_basecase 347369115
Flx_mul_pre 379357688
Flx_mulspec 384950889
Flx_shiftip 632309212
Flx_rem_basecase 799025986
Flx_rem_pre 922939998
get_Flx_red 986956346
Flx_mullimb 1188340248
Flx_renormalize 2153296852
get_Fl_threshold 2325343344
Flx_mullimb_ok 3369079761

Generated by: LCOV version 1.16