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 30711-c92306d4b4) Lines: 2553 2925 87.3 %
Date: 2026-02-24 09:25:14 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449944
Fl2_inv_pre 197264
Fl2_mul_pre 1954134
Fl2_norm_pre 127604
Fl2_pow_pre 671683
Fl2_sqr_pre 4914817
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76047
Fl_Flxq_log 35549
Fl_Xp1_powu 0
Fl_to_Flx 21956164
Flm_to_FlxV 2772
FlvV_polint_tree 2587645
Flv_Flm_polint 104561
Flv_inv 1744458
Flv_invVandermonde 153445
Flv_inv_i 1756470
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21261980
Flv_inv_pre_inplace 19525479
Flv_polint 1485178
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745666
Flv_roots_to_pol 842203
Flv_to_Flx 25487133
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 292134
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28971
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171880
FlxV_to_Flm_lg 12968187
FlxV_to_FlxX 397987
FlxV_to_ZXV 606839
FlxV_to_ZXV_inplace 3031467
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845229
Flx_Fl_mul 7326574
Flx_Fl_mul_pre 18099198
Flx_Fl_mul_to_monic 11857044
Flx_Fl_sub 151679
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785966
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166937
Flx_Flxq_eval 791323
Flx_Flxq_eval_pre 2444560
Flx_Frobenius 86619
Flx_Frobenius_pre 13813681
Flx_Laplace 27295
Flx_Newton 54103
Flx_add 66008284
Flx_addmulmul 358981
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526386
Flx_blocks_Flm 12967845
Flx_composedprod 0
Flx_composedsum 27549
Flx_convol 0
Flx_deflate 420788
Flx_deriv 22981530
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36603732
Flx_divrem 30448967
Flx_divrem_Barrett 604021
Flx_divrem_Barrettspec 905510
Flx_divrem_basecase 61218501
Flx_divrem_pre 78662090
Flx_double 2299328
Flx_equal 26170921
Flx_eval 20451979
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48658053
Flx_eval_pre 136174077
Flx_extgcd 856785
Flx_extgcd_basecase 6182518
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6182526
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109405
Flx_gcd 35021486
Flx_gcd_basecase 85787597
Flx_gcd_pre 87443821
Flx_get_red 14504621
Flx_get_red_pre 96281000
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087796
Flx_halfgcd_all_pre 1087797
Flx_halfgcd_pre 873327
Flx_halfres_basecase 1094873
Flx_halfres_i 1114840
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160193
Flx_integ 0
Flx_integXn 422797
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158851
Flx_invLaplace 54387
Flx_is_l_pow 8175
Flx_is_smooth 74256
Flx_is_smooth_pre 118554
Flx_is_smooth_squarefree 126715
Flx_is_squarefree 9180964
Flx_lgrenormalizespec 2133127
Flx_matFrobenius 0
Flx_matFrobenius_pre 86567
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4907028
Flx_mul 26709080
Flx_mul_pre 375720439
Flx_mulhigh_i 948526
Flx_mullimb 1187684093
Flx_mullimb_ok 3335044011
Flx_mulspec 381359075
Flx_mulspec_Kronecker 7331572
Flx_mulspec_basecase 343906682
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10146
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 97166
Flx_neg 3263648
Flx_neg_inplace 1767761
Flx_negspec 3263648
Flx_normalize 64868407
Flx_powu 0
Flx_powu_pre 3884
Flx_recip 0
Flx_recipspec 7288013
Flx_red 1878207
Flx_rem 42227611
Flx_rem_basecase 796763713
Flx_rem_pre 920454365
Flx_renormalize 2140013683
Flx_rescale 1117
Flx_resultant 4731607
Flx_resultant_basecase_pre 14595941
Flx_resultant_pre 14598104
Flx_shift 27402570
Flx_shiftip 627791830
Flx_splitting 147099
Flx_sqr 354630
Flx_sqr_pre 275021614
Flx_sqrspec 275314823
Flx_sqrspec_Kronecker 676869
Flx_sqrspec_basecase 275060773
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136430521
Flx_subspec 897820
Flx_to_Flv 66648044
Flx_to_FlxX 71405
Flx_to_ZX 38299427
Flx_to_ZX_inplace 36532667
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 984021
Flx_unscale 0
Flx_val 4479338
Flx_valrem 28507247
Flxn_div 56366
Flxn_div_pre 56375
Flxn_exp 0
Flxn_expint 109403
Flxn_inv 1037
Flxn_mul 75845
Flxn_mul_pre 5181590
Flxn_mulhigh 526338
Flxn_recip 217447
Flxn_red 6360328
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 69419
Flxq_autpow_sqr 47247
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112091
Flxq_autsum_pre 98576
Flxq_autsum_sqr 104890
Flxq_auttrace 0
Flxq_auttrace_mul 780110
Flxq_auttrace_pre 959864
Flxq_auttrace_sqr 652782
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2313025
Flxq_easylog 519375
Flxq_inv 335769
Flxq_inv_pre 4182696
Flxq_invsafe 670489
Flxq_invsafe_pre 5325754
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170662
Flxq_minpoly 45937
Flxq_minpoly_pre 809671
Flxq_mul 13192535
Flxq_mul_pre 186290704
Flxq_norm 443126
Flxq_order 97322
Flxq_pow 932813
Flxq_pow_Frobenius 21562440
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 22610696
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232012
Flxq_powers_pre 22437871
Flxq_powu 488334
Flxq_powu_pre 24179229
Flxq_sqr 2763153
Flxq_sqr_pre 274088980
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
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 4696
Flxq_transmul 4213290
Flxq_transmul_init 1746643
RgXV_to_FlxV 7
RgX_to_Flx 2205404
Rg_to_F2 1710327
Rg_to_Fl 72938538
Rg_to_Flxq 3588259
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797087
ZXV_to_FlxV 0
ZX_to_Flx 170972298
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556599
ZpX_invLaplace_init 497
_Fl2_mul 1925105
_Fl2_pow 671677
_Fl2_rand 113894
_Fl2_sqr 4914817
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11797341
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 145327904
_Flxq_neg 366572
_Flxq_one 22438659
_Flxq_pow 21555028
_Flxq_powu 68
_Flxq_powu_i 22924991
_Flxq_rand 6583
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266515782
bounded_order 394008
gener_Flxq 7201
get_Fl_threshold 2313401697
get_Flx_red 983346397
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12217
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 20932050
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 5621647
kron_unpack_Flx_bits_wide 5667905
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8441913
mkF2 7328906
monomial_Flx 941408
random_Flx 2646121
set_Flxq 68922
set_Flxq_pre 68529906
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6425003

Generated by: LCOV version 1.16