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 30634-7c77b4d1a9) Lines: 2553 2925 87.3 %
Date: 2026-01-25 09:23:13 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450019
Fl2_inv_pre 197439
Fl2_mul_pre 1953634
Fl2_norm_pre 127600
Fl2_pow_pre 671937
Fl2_sqr_pre 4910979
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76079
Fl_Flxq_log 35543
Fl_Xp1_powu 0
Fl_to_Flx 21950450
Flm_to_FlxV 2772
FlvV_polint_tree 2587627
Flv_Flm_polint 104562
Flv_inv 1744432
Flv_invVandermonde 153445
Flv_inv_i 1756439
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9646
Flv_inv_pre_indir 21041645
Flv_inv_pre_inplace 19317589
Flv_polint 1485158
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745652
Flv_roots_to_pol 842205
Flv_to_Flx 25486047
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 325154
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 295788
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28964
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171879
FlxV_to_Flm_lg 12967284
FlxV_to_FlxX 397977
FlxV_to_ZXV 606737
FlxV_to_ZXV_inplace 3031582
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9847193
Flx_Fl_mul 7327906
Flx_Fl_mul_pre 18292143
Flx_Fl_mul_to_monic 11856609
Flx_Fl_sub 151682
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785946
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13165808
Flx_Flxq_eval 791308
Flx_Flxq_eval_pre 2444603
Flx_Frobenius 86619
Flx_Frobenius_pre 13811967
Flx_Laplace 27338
Flx_Newton 54099
Flx_add 66138164
Flx_addmulmul 416800
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 525846
Flx_blocks_Flm 12966618
Flx_composedprod 0
Flx_composedsum 27553
Flx_convol 0
Flx_deflate 420811
Flx_deriv 22982238
Flx_diff1 14447
Flx_digits 0
Flx_div_by_X_x 36590649
Flx_divrem 30449351
Flx_divrem_Barrett 605006
Flx_divrem_Barrettspec 906137
Flx_divrem_basecase 62281328
Flx_divrem_pre 79720692
Flx_double 2443925
Flx_equal 27901780
Flx_eval 20429125
Flx_eval2BILspec 603305
Flx_eval_powers_pre 48543937
Flx_eval_pre 136156878
Flx_extgcd 856696
Flx_extgcd_basecase 6286010
Flx_extgcd_halfgcd 146657
Flx_extgcd_pre 6285969
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109402
Flx_gcd 35029060
Flx_gcd_basecase 85779959
Flx_gcd_pre 87438910
Flx_get_red 14503398
Flx_get_red_pre 98134488
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126678
Flx_halfgcd_all_pre 1126679
Flx_halfgcd_pre 873050
Flx_halfres_basecase 1133753
Flx_halfres_i 1153722
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160810
Flx_integ 0
Flx_integXn 422741
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158853
Flx_invLaplace 54364
Flx_is_l_pow 8192
Flx_is_smooth 74256
Flx_is_smooth_pre 118759
Flx_is_smooth_squarefree 126892
Flx_is_squarefree 9180609
Flx_lgrenormalizespec 2134701
Flx_matFrobenius 0
Flx_matFrobenius_pre 86567
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4908447
Flx_mul 27806790
Flx_mul_pre 381282535
Flx_mulhigh_i 947530
Flx_mullimb 1186779891
Flx_mullimb_ok 3405043016
Flx_mulspec 386963930
Flx_mulspec_Kronecker 7357226
Flx_mulspec_basecase 349468820
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294051
Flx_mulspec_quartmulii 97166
Flx_neg 3264686
Flx_neg_inplace 1780025
Flx_negspec 3264680
Flx_normalize 64832297
Flx_powu 0
Flx_powu_pre 3940
Flx_recip 0
Flx_recipspec 7287146
Flx_red 1881437
Flx_rem 42222552
Flx_rem_basecase 802123588
Flx_rem_pre 925737229
Flx_renormalize 2157518753
Flx_rescale 1117
Flx_resultant 4733671
Flx_resultant_basecase_pre 14597871
Flx_resultant_pre 14599940
Flx_shift 27395390
Flx_shiftip 635038166
Flx_splitting 147493
Flx_sqr 354700
Flx_sqr_pre 276762274
Flx_sqrspec 277105280
Flx_sqrspec_Kronecker 695092
Flx_sqrspec_basecase 277065149
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138639042
Flx_subspec 898670
Flx_to_Flv 66642032
Flx_to_FlxX 71405
Flx_to_ZX 38298413
Flx_to_ZX_inplace 36572006
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 17107
Flx_translate1_basecase 29201
Flx_triple 1049261
Flx_unscale 0
Flx_val 4471008
Flx_valrem 28484492
Flxn_div 56317
Flxn_div_pre 56347
Flxn_exp 0
Flxn_expint 109402
Flxn_inv 1037
Flxn_mul 75849
Flxn_mul_pre 5177216
Flxn_mulhigh 525741
Flxn_recip 217328
Flxn_red 6358426
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20698
Flxq_autpow_pre 69453
Flxq_autpow_sqr 47320
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112472
Flxq_autsum_pre 98768
Flxq_autsum_sqr 105110
Flxq_auttrace 0
Flxq_auttrace_mul 780069
Flxq_auttrace_pre 959819
Flxq_auttrace_sqr 652749
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519358
Flxq_inv 335768
Flxq_inv_pre 4286520
Flxq_invsafe 670218
Flxq_invsafe_pre 5429297
Flxq_is2npower 0
Flxq_issquare 404492
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 170659
Flxq_minpoly 45937
Flxq_minpoly_pre 809618
Flxq_mul 13192483
Flxq_mul_pre 190018578
Flxq_norm 443134
Flxq_order 97328
Flxq_pow 948251
Flxq_pow_Frobenius 23409455
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24472959
Flxq_pow_table 0
Flxq_pow_table_pre 4390
Flxq_powers 232008
Flxq_powers_pre 22434896
Flxq_powu 488341
Flxq_powu_pre 24179045
Flxq_sqr 2763146
Flxq_sqr_pre 275793100
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21899
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212071
Flxq_transmul_init 1746030
RgXV_to_FlxV 7
RgX_to_Flx 2249949
Rg_to_F2 1710180
Rg_to_Fl 73210251
Rg_to_Flxq 3588284
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813402
ZXV_to_FlxV 0
ZX_to_Flx 171016766
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556433
ZpX_invLaplace_init 497
_Fl2_mul 1924620
_Fl2_pow 671927
_Fl2_rand 113857
_Fl2_sqr 4910992
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11786416
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148836618
_Flxq_neg 366572
_Flxq_one 22436681
_Flxq_pow 23402047
_Flxq_powu 68
_Flxq_powu_i 22924570
_Flxq_rand 6568
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267999062
bounded_order 395386
gener_Flxq 7201
get_Fl_threshold 2335399342
get_Flx_red 989804483
get_Flxq_field 68902
get_Flxq_star 283438
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21001978
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 5664667
kron_unpack_Flx_bits_wide 5669114
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8486249
mkF2 7324840
monomial_Flx 941125
random_Flx 2645784
set_Flxq 68922
set_Flxq_pre 70385467
translate_basecase 42366
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6398387

Generated by: LCOV version 1.16