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
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 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 3972
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6560
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8162
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10141
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 12213
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20698
Flxq_sqrtn_spec_pre 21901
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23094
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27347
Flx_composedsum 27546
FlxV_composedsum 28968
Flx_translate1_basecase 29202
Flx_mod_Xn1 31508
FlxV_Flc_mul 34482
Fl_Flxq_log 35550
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47324
Flv_inv_indir 52212
kron_pack_Flx_spec 53168
Flx_Newton 54107
Flx_invLaplace 54380
Flxn_div 55151
Flxn_div_pre 55176
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69455
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75850
Fl2_sqrtn_pre 76042
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86566
Flx_Frobenius 86618
Flx_mulspec_quartmulii 97163
Flxq_order 97328
Flxq_autsum_pre 98774
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 105124
int_to_Flx_quart 107383
Flxn_expint 109401
Flx_fromNewton 109404
Flxq_autsum_mul 112490
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113728
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118508
Flx_is_smooth_squarefree 126682
Fl2_norm_pre 127574
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146650
Flx_splitting 147724
Flx_Fl_sub 151683
Flv_invVandermonde 153445
Flx_invBarrett_pre 158851
Flx_inflate 160784
Flxq_log 164210
Flxq_matrix_pow_pre 170656
FlxV_to_Flm 171879
Fl2_inv_pre 197273
Flx_to_int_quartspec 204545
Flxq_sumautsum_pre 210713
Flxn_recip 217312
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232014
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283438
Flx_mulspec_mulii_inflate 294045
Flxq_sumautsum_sqr 295314
FlxT_red 297678
Z_mod2BIL_Flx 305859
Z_mod2BIL_Flx_2 308789
FlxC_eval_powers_pre 325160
Flxq_inv 335770
Flx_sqr 354745
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395387
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416798
Flx_deflate 420794
Flx_integXn 422752
Flxq_norm 443134
Fl2_equal1 449467
Flx_to_int_halfspec 468590
Flxq_powu 488339
int_to_Flx_half 507058
Flxn_mulhigh 516751
Flx_blocks 516835
Flxq_easylog 519366
Flx_eval2BILspec 603293
Flx_divrem_Barrett 605558
FlxV_to_ZXV 606743
Flxq_auttrace_sqr 652814
Flxq_invsafe 670442
_Fl2_pow 671216
Fl2_pow_pre 671217
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695146
Flxq_auttrace_mul 780110
Flx_Flxq_eval 791310
Flxq_minpoly_pre 809722
Flv_roots_to_pol 842146
Flx_extgcd 856687
Flx_halfgcd_pre 873228
Flx_subspec 899543
Flx_divrem_Barrettspec 907143
Flx_mulhigh_i 938498
monomial_Flx 941305
Flxq_pow 948278
Flxq_auttrace_pre 959863
Flx_triple 1049261
Flx_halfgcd_all_i 1127026
Flx_halfgcd_all_pre 1127027
Flx_halfres_basecase 1134107
Flx_halfres_i 1154071
_Flxq_rmul 1461838
Flv_polint 1485202
_Flxq_red 1550928
Rg_to_F2 1710224
Flv_inv 1744482
Flv_producttree 1745691
Flxq_transmul_init 1746422
Flv_inv_i 1756494
Flx_neg_inplace 1777875
Flx_Flv_multieval_tree 1785993
Flx_red 1883061
_Fl2_mul 1923069
Fl2_mul_pre 1952075
Flx_lgrenormalizespec 2136572
RgX_to_Flx 2249946
Flxq_div_pre 2416845
Flx_double 2443925
Flx_Flxq_eval_pre 2444615
FlvV_polint_tree 2587601
random_Flx 2645994
Flxq_sqr 2763153
FlxV_to_ZXV_inplace 3031588
Flx_negspec 3265088
Flx_neg 3265090
Rg_to_Flxq 3588279
Flx_addshift 3724675
ZXT_to_FlxT 3813881
Flxq_transmul 4212717
Flxq_inv_pre 4286527
Flx_val 4479761
Flx_resultant 4733723
Flx_mod_Xnm1 4908298
Fl2_sqr_pre 4908751
_Fl2_sqr 4908834
Flxn_mul_pre 5158534
Flxq_invsafe_pre 5429542
kron_unpack_Flx_bits_narrow 5660600
kron_unpack_Flx_bits_wide 5668462
Flx_extgcd_basecase 6286212
Flx_extgcd_pre 6286214
Flxn_red 6329175
zx_to_Flx 6414618
Flx_addspec 7250880
Flx_recipspec 7290571
mkF2 7320424
Flx_Fl_mul 7327289
Flx_mulspec_Kronecker 7352311
Z_to_Flx 7556598
maxbitcoeffpol 8481786
Flx_is_squarefree 9180616
Flx_Fl_add 9841592
_Flx_mul 11779222
Flx_Fl_mul_to_monic 11855887
Flx_blocks_Flm 12966410
FlxV_to_Flm_lg 12966954
Flx_FlxqV_eval_pre 13165756
Flxq_mul 13192544
Flx_Frobenius_pre 13811095
Flx_get_red 14501738
Flx_resultant_basecase_pre 14598323
Flx_resultant_pre 14600438
Flx_Fl_mul_pre 18291351
Flv_inv_pre_inplace 19331758
Flx_eval 20402820
kron_pack_Flx_spec_bits 20993365
Flv_inv_pre_indir 21055346
Fl_to_Flx 21932920
_Flxq_pow 22382689
Flxq_pow_Frobenius 22390102
_Flxq_one 22432721
Flxq_powers_pre 22433166
_Flxq_powu_i 22919062
Flx_deriv 22981644
Flxq_pow_pre 23453566
Flxq_powu_pre 24172711
Flv_to_Flx 25485996
Flx_equal 26940882
Flx_shift 27378559
Flx_mul 27810750
Flx_valrem 28485688
Flx_divrem 30445096
Flx_gcd 35019322
Flx_div_by_X_x 36547748
Flx_to_ZX_inplace 36565558
Flx_to_ZX 38298254
Flx_rem 42223670
Flx_eval_powers_pre 48619239
Flx_divrem_basecase 62279203
Flx_normalize 64841727
Flx_add 66100325
Flx_to_Flv 66640850
set_Flxq_pre 69357492
Rg_to_Fl 73209263
Flx_divrem_pre 79716996
Flx_gcd_basecase 85755692
Flx_gcd_pre 87410818
Flx_get_red_pre 97103293
Flx_eval_pre 136123466
Flx_sub 138628805
_Flxq_mul 146709316
ZX_to_Flx 170998358
Flxq_mul_pre 187894754
_Flxq_sqr 266757130
Flxq_sqr_pre 274625479
Flx_sqr_pre 275559447
Flx_sqrspec 275810444
Flx_sqrspec_basecase 275936572
Flx_mulspec_basecase 347138434
Flx_mul_pre 379067166
Flx_mulspec 384643342
Flx_shiftip 631512007
Flx_rem_basecase 798184207
Flx_rem_pre 922083869
get_Flx_red 986068540
Flx_mullimb 1186617436
Flx_renormalize 2150873446
get_Fl_threshold 2322682584
Flx_mullimb_ok 3363903993

Generated by: LCOV version 1.16