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 30773-2078653b96) Lines: 2553 2925 87.3 %
Date: 2026-04-02 09:26:53 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449527
Fl2_inv_pre 197247
Fl2_mul_pre 17090749
Fl2_norm_pre 97118545
Fl2_pow_pre 671220
Fl2_sqr_pre 4904202
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76018
Fl_Flxq_log 35569
Fl_Xp1_powu 0
Fl_to_Flx 21945253
Flm_to_FlxV 2772
FlvV_polint_tree 2587661
Flv_Flm_polint 104561
Flv_inv 1744766
Flv_invVandermonde 153445
Flv_inv_i 1756777
Flv_inv_indir 52207
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21005125
Flv_inv_pre_inplace 19262527
Flv_polint 1485495
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745983
Flv_roots_to_pol 842071
Flv_to_Flx 25491724
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 325156
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 295078
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28984
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171866
FlxV_to_Flm_lg 12971370
FlxV_to_FlxX 397987
FlxV_to_ZXV 609485
FlxV_to_ZXV_inplace 3032569
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844643
Flx_Fl_mul 9423102
Flx_Fl_mul_pre 20198917
Flx_Fl_mul_to_monic 11859564
Flx_Fl_sub 151690
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786281
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170283
Flx_Flxq_eval 791484
Flx_Flxq_eval_pre 2444854
Flx_Frobenius 86616
Flx_Frobenius_pre 13818563
Flx_Laplace 27484
Flx_Newton 54380
Flx_add 73785591
Flx_addmulmul 358988
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527711
Flx_blocks_Flm 12970713
Flx_composedprod 0
Flx_composedsum 27696
Flx_convol 0
Flx_deflate 421312
Flx_deriv 23015322
Flx_diff1 660360
Flx_digits 0
Flx_div_by_X_x 36540474
Flx_divrem 30452904
Flx_divrem_Barrett 604845
Flx_divrem_Barrettspec 906350
Flx_divrem_basecase 61243378
Flx_divrem_pre 78684730
Flx_double 1179459
Flx_equal 27232866
Flx_eval 20409835
Flx_eval2BILspec 603309
Flx_eval_powers_pre 48579407
Flx_eval_pre 136156426
Flx_extgcd 857096
Flx_extgcd_basecase 6183530
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6183540
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109542
Flx_gcd 35017804
Flx_gcd_basecase 85800603
Flx_gcd_pre 87463098
Flx_get_red 14508816
Flx_get_red_pre 98146379
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088298
Flx_halfgcd_all_pre 1088304
Flx_halfgcd_pre 873129
Flx_halfres_basecase 1095377
Flx_halfres_i 1115342
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160700
Flx_integ 0
Flx_integXn 423324
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158849
Flx_invLaplace 54658
Flx_is_l_pow 8261
Flx_is_smooth 74256
Flx_is_smooth_pre 119413
Flx_is_smooth_squarefree 127649
Flx_is_squarefree 9201088
Flx_lgrenormalizespec 2134550
Flx_matFrobenius 0
Flx_matFrobenius_pre 86556
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4906896
Flx_mul 26721018
Flx_mul_pre 382690479
Flx_mulhigh_i 949964
Flx_mullimb 1188985989
Flx_mullimb_ok 3373518161
Flx_mulspec 388302350
Flx_mulspec_Kronecker 7368654
Flx_mulspec_basecase 348368910
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10141
Flx_mulspec_mulii_inflate 294053
Flx_mulspec_quartmulii 97163
Flx_neg 4175756
Flx_neg_inplace 1799550
Flx_negspec 4175754
Flx_normalize 64783494
Flx_powu 0
Flx_powu_pre 3932
Flx_recip 0
Flx_recipspec 7288852
Flx_red 1882153
Flx_rem 42219217
Flx_rem_basecase 801118917
Flx_rem_pre 927191454
Flx_renormalize 2169907372
Flx_rescale 1117
Flx_resultant 4739242
Flx_resultant_basecase_pre 14605026
Flx_resultant_pre 14607286
Flx_shift 27403050
Flx_shiftip 632447799
Flx_splitting 147434
Flx_sqr 370262
Flx_sqr_pre 275561875
Flx_sqrspec 275710414
Flx_sqrspec_Kronecker 670276
Flx_sqrspec_basecase 275032265
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2065
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136574188
Flx_subspec 898668
Flx_to_Flv 66650020
Flx_to_FlxX 71405
Flx_to_ZX 38377635
Flx_to_ZX_inplace 36546636
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204545
Flx_translate1 663036
Flx_translate1_basecase 675113
Flx_triple 551294
Flx_unscale 0
Flx_val 4472602
Flx_valrem 28431472
Flxn_div 56610
Flxn_div_pre 56633
Flxn_exp 0
Flxn_expint 109534
Flxn_inv 1037
Flxn_mul 75986
Flxn_mul_pre 5183722
Flxn_mulhigh 527624
Flxn_recip 218073
Flxn_red 6367162
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 69414
Flxq_autpow_sqr 47244
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112088
Flxq_autsum_pre 98573
Flxq_autsum_sqr 104887
Flxq_auttrace 0
Flxq_auttrace_mul 779597
Flxq_auttrace_pre 960230
Flxq_auttrace_sqr 652334
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313668
Flxq_easylog 519428
Flxq_inv 335791
Flxq_inv_pre 4183773
Flxq_invsafe 670143
Flxq_invsafe_pre 5326490
Flxq_is2npower 0
Flxq_issquare 404606
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 170645
Flxq_minpoly 45937
Flxq_minpoly_pre 809703
Flxq_mul 18079800
Flxq_mul_pre 193424775
Flxq_norm 443247
Flxq_order 97322
Flxq_pow 932856
Flxq_pow_Frobenius 23409925
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24458218
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232117
Flxq_powers_pre 22444354
Flxq_powu 488361
Flxq_powu_pre 24186736
Flxq_sqr 2763475
Flxq_sqr_pre 274528621
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212149
Flxq_transmul_init 1746222
RgXV_to_FlxV 7
RgX_to_Flx 2209614
Rg_to_F2 1715135
Rg_to_Fl 73086267
Rg_to_Flxq 3461470
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798095
ZXV_to_FlxV 0
ZX_to_Flx 171053587
Z_mod2BIL_Flx 305867
Z_mod2BIL_Flx_2 308797
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594097
ZpX_invLaplace_init 497
_Fl2_mul 1922369
_Fl2_pow 671197
_Fl2_rand 113704
_Fl2_sqr 4904172
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11769749
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148958869
_Flxq_neg 366572
_Flxq_one 22443990
_Flxq_pow 23402515
_Flxq_powu 68
_Flxq_powu_i 22932963
_Flxq_rand 6566
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268171947
bounded_order 394013
gener_Flxq 7201
get_Fl_threshold 2327804527
get_Flx_red 990220790
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12212
int_to_Flx_half 507058
int_to_Flx_quart 107383
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21000882
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 5624193
kron_unpack_Flx_bits_wide 5698554
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8473698
mkF2 27659776
monomial_Flx 941214
random_Flx 2646214
set_Flxq 68922
set_Flxq_pre 70389579
translate_basecase 688289
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6406441

Generated by: LCOV version 1.16