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 30735-65f72320ad) Lines: 2553 2925 87.3 %
Date: 2026-03-12 09:23:43 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449862
Fl2_inv_pre 197299
Fl2_mul_pre 1953799
Fl2_norm_pre 127632
Fl2_pow_pre 671678
Fl2_sqr_pre 4913310
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76080
Fl_Flxq_log 35574
Fl_Xp1_powu 0
Fl_to_Flx 21969862
Flm_to_FlxV 2772
FlvV_polint_tree 2587617
Flv_Flm_polint 104557
Flv_inv 1744588
Flv_invVandermonde 153445
Flv_inv_i 1756593
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21153035
Flv_inv_pre_inplace 19417335
Flv_polint 1485309
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745793
Flv_roots_to_pol 842146
Flv_to_Flx 25491823
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 325160
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 297229
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28981
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171855
FlxV_to_Flm_lg 12970964
FlxV_to_FlxX 397987
FlxV_to_ZXV 606956
FlxV_to_ZXV_inplace 3031924
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845179
Flx_Fl_mul 7328217
Flx_Fl_mul_pre 18101109
Flx_Fl_mul_to_monic 11853357
Flx_Fl_sub 151688
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786094
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169502
Flx_Flxq_eval 791476
Flx_Flxq_eval_pre 2444501
Flx_Frobenius 86618
Flx_Frobenius_pre 13818562
Flx_Laplace 27491
Flx_Newton 54389
Flx_add 66019521
Flx_addmulmul 358990
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 528104
Flx_blocks_Flm 12970443
Flx_composedprod 0
Flx_composedsum 27698
Flx_convol 0
Flx_deflate 421255
Flx_deriv 22986791
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36626231
Flx_divrem 30452259
Flx_divrem_Barrett 605418
Flx_divrem_Barrettspec 907038
Flx_divrem_basecase 61226288
Flx_divrem_pre 78668916
Flx_double 2299328
Flx_equal 26896427
Flx_eval 20437761
Flx_eval2BILspec 603301
Flx_eval_powers_pre 48679989
Flx_eval_pre 136179320
Flx_extgcd 857086
Flx_extgcd_basecase 6182689
Flx_extgcd_halfgcd 126073
Flx_extgcd_pre 6182683
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109543
Flx_gcd 35032832
Flx_gcd_basecase 85812887
Flx_gcd_pre 87476765
Flx_get_red 14509363
Flx_get_red_pre 97096361
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087775
Flx_halfgcd_all_pre 1087777
Flx_halfgcd_pre 872875
Flx_halfres_basecase 1094851
Flx_halfres_i 1114819
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160562
Flx_integ 0
Flx_integXn 423396
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134385
Flx_invBarrett_pre 158846
Flx_invLaplace 54669
Flx_is_l_pow 8160
Flx_is_smooth 74256
Flx_is_smooth_pre 118696
Flx_is_smooth_squarefree 126842
Flx_is_squarefree 9181650
Flx_lgrenormalizespec 2135838
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4907693
Flx_mul 26715714
Flx_mul_pre 377479012
Flx_mulhigh_i 950663
Flx_mullimb 1188465196
Flx_mullimb_ok 3347566501
Flx_mulspec 383038885
Flx_mulspec_Kronecker 7333488
Flx_mulspec_basecase 345359687
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10134
Flx_mulspec_mulii_inflate 294049
Flx_mulspec_quartmulii 97166
Flx_neg 3265039
Flx_neg_inplace 1767867
Flx_negspec 3265035
Flx_normalize 64846108
Flx_powu 0
Flx_powu_pre 3963
Flx_recip 0
Flx_recipspec 7284782
Flx_red 1884098
Flx_rem 42223255
Flx_rem_basecase 799092055
Flx_rem_pre 923112038
Flx_renormalize 2142786165
Flx_rescale 1117
Flx_resultant 4732494
Flx_resultant_basecase_pre 14597824
Flx_resultant_pre 14599862
Flx_shift 27403790
Flx_shiftip 630572245
Flx_splitting 147670
Flx_sqr 354656
Flx_sqr_pre 276511548
Flx_sqrspec 276667680
Flx_sqrspec_Kronecker 677006
Flx_sqrspec_basecase 275830434
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136460073
Flx_subspec 899541
Flx_to_Flv 66653495
Flx_to_FlxX 71405
Flx_to_ZX 38305833
Flx_to_ZX_inplace 36528835
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 4479991
Flx_valrem 28498410
Flxn_div 56657
Flxn_div_pre 56669
Flxn_exp 0
Flxn_expint 109536
Flxn_inv 1037
Flxn_mul 75980
Flxn_mul_pre 5186117
Flxn_mulhigh 528052
Flxn_recip 218197
Flxn_red 6371922
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 69417
Flxq_autpow_sqr 47246
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779555
Flxq_auttrace_pre 959756
Flxq_auttrace_sqr 652300
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237793
Flxq_div_pre 2312927
Flxq_easylog 519448
Flxq_inv 335768
Flxq_inv_pre 4182644
Flxq_invsafe 670371
Flxq_invsafe_pre 5325625
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 170642
Flxq_minpoly 45937
Flxq_minpoly_pre 809413
Flxq_mul 13193883
Flxq_mul_pre 187997948
Flxq_norm 443099
Flxq_order 97322
Flxq_pow 933001
Flxq_pow_Frobenius 22362997
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23411362
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232122
Flxq_powers_pre 22444433
Flxq_powu 488369
Flxq_powu_pre 24183422
Flxq_sqr 2763153
Flxq_sqr_pre 275560673
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23093
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4211284
Flxq_transmul_init 1745744
RgXV_to_FlxV 7
RgX_to_Flx 2193209
Rg_to_F2 1710437
Rg_to_Fl 72889486
Rg_to_Flxq 3588186
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798770
ZXV_to_FlxV 0
ZX_to_Flx 170950758
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593347
ZpX_invLaplace_init 497
_Fl2_mul 1924763
_Fl2_pow 671668
_Fl2_rand 113818
_Fl2_sqr 4913331
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11792155
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147014683
_Flxq_neg 366572
_Flxq_one 22445036
_Flxq_pow 22355590
_Flxq_powu 68
_Flxq_powu_i 22931449
_Flxq_rand 6580
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267874198
bounded_order 394026
gener_Flxq 7201
get_Fl_threshold 2321892153
get_Flx_red 986125396
get_Flxq_field 68902
get_Flxq_star 283431
init_invlaplace 12514
int_to_Flx 12215
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 20938525
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 5625865
kron_unpack_Flx_bits_wide 5668490
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8445674
mkF2 7327314
monomial_Flx 940967
random_Flx 2645520
set_Flxq 68922
set_Flxq_pre 69341782
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6418516

Generated by: LCOV version 1.16