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 30838-aa3635ec72) Lines: 2553 2925 87.3 %
Date: 2026-04-28 09:25:50 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450280
Fl2_inv_pre 197568
Fl2_mul_pre 17093396
Fl2_norm_pre 97118579
Fl2_pow_pre 672297
Fl2_sqr_pre 4907393
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76111
Fl_Flxq_log 35559
Fl_Xp1_powu 0
Fl_to_Flx 21914224
Flm_to_FlxV 2772
FlvV_polint_tree 2587400
Flv_Flm_polint 104558
Flv_inv 1744728
Flv_invVandermonde 153445
Flv_inv_i 1756737
Flv_inv_indir 52209
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 20942520
Flv_inv_pre_inplace 19218519
Flv_polint 1485446
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745945
Flv_roots_to_pol 841868
Flv_to_Flx 25493395
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 325148
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26382
FlxM_eval_powers_pre 22301
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7279
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 297678
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28996
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171851
FlxV_to_Flm_lg 12971421
FlxV_to_FlxX 397987
FlxV_to_ZXV 609496
FlxV_to_ZXV_inplace 3032477
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844715
Flx_Fl_mul 9423915
Flx_Fl_mul_pre 20199483
Flx_Fl_mul_to_monic 11861161
Flx_Fl_sub 151689
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786241
Flx_FlxM_qmul 7107
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169969
Flx_Flxq_eval 791489
Flx_Flxq_eval_pre 2444900
Flx_Frobenius 86617
Flx_Frobenius_pre 13819622
Flx_Laplace 27493
Flx_Newton 54388
Flx_add 73779706
Flx_addmulmul 360080
Flx_addshift 3768888
Flx_addspec 7339173
Flx_blocks 527764
Flx_blocks_Flm 12970502
Flx_composedprod 0
Flx_composedsum 27701
Flx_convol 0
Flx_deflate 421308
Flx_deriv 22891244
Flx_diff1 660375
Flx_digits 0
Flx_div_by_X_x 36535535
Flx_divrem 30453714
Flx_divrem_Barrett 610804
Flx_divrem_Barrettspec 912702
Flx_divrem_basecase 61250177
Flx_divrem_pre 78690577
Flx_double 1179459
Flx_equal 25784592
Flx_eval 20403940
Flx_eval2BILspec 603295
Flx_eval_powers_pre 48539732
Flx_eval_pre 136124867
Flx_extgcd 857843
Flx_extgcd_basecase 6184047
Flx_extgcd_halfgcd 126116
Flx_extgcd_pre 6184031
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109549
Flx_gcd 35020145
Flx_gcd_basecase 85802800
Flx_gcd_pre 87457767
Flx_get_red 14507843
Flx_get_red_pre 96702239
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088345
Flx_halfgcd_all_pre 1088350
Flx_halfgcd_pre 873195
Flx_halfres_basecase 1095603
Flx_halfres_i 1115773
Flx_halfres_pre 1044
Flx_halfres_split 20166
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160969
Flx_integ 0
Flx_integXn 423417
Flx_invBarrett 0
Flx_invBarrett_Newton 23252
Flx_invBarrett_basecase 134424
Flx_invBarrett_pre 158977
Flx_invLaplace 54656
Flx_is_l_pow 8197
Flx_is_smooth 74256
Flx_is_smooth_pre 119171
Flx_is_smooth_squarefree 127338
Flx_is_squarefree 9207245
Flx_lgrenormalizespec 2150378
Flx_matFrobenius 0
Flx_matFrobenius_pre 86551
Flx_mod_Xn1 31627
Flx_mod_Xnm1 4908114
Flx_mul 26751706
Flx_mul_pre 379605608
Flx_mulhigh_i 950053
Flx_mullimb 1186055223
Flx_mullimb_ok 3331860859
Flx_mulspec 385237844
Flx_mulspec_Kronecker 7387949
Flx_mulspec_basecase 345536249
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10129
Flx_mulspec_mulii_inflate 294046
Flx_mulspec_quartmulii 98863
Flx_neg 4176399
Flx_neg_inplace 1799912
Flx_negspec 4176396
Flx_normalize 64814295
Flx_powu 0
Flx_powu_pre 3970
Flx_recip 0
Flx_recipspec 7302074
Flx_red 1884458
Flx_rem 42222046
Flx_rem_basecase 796033646
Flx_rem_pre 921863370
Flx_renormalize 2160185223
Flx_rescale 1117
Flx_resultant 4608869
Flx_resultant_basecase_pre 14473273
Flx_resultant_pre 14475547
Flx_shift 27405299
Flx_shiftip 627815875
Flx_splitting 147722
Flx_sqr 370313
Flx_sqr_pre 273369874
Flx_sqrspec 273674356
Flx_sqrspec_Kronecker 672018
Flx_sqrspec_basecase 273920434
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2066
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136596859
Flx_subspec 905093
Flx_to_Flv 66654169
Flx_to_FlxX 71404
Flx_to_ZX 38385531
Flx_to_ZX_inplace 36550807
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 207948
Flx_translate1 663056
Flx_translate1_basecase 675118
Flx_triple 551294
Flx_unscale 0
Flx_val 4473771
Flx_valrem 28445622
Flxn_div 56613
Flxn_div_pre 56633
Flxn_exp 0
Flxn_expint 109549
Flxn_inv 1037
Flxn_mul 75992
Flxn_mul_pre 5183652
Flxn_mulhigh 527677
Flxn_recip 218079
Flxn_red 6368242
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 69429
Flxq_autpow_sqr 47278
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112115
Flxq_autsum_pre 98579
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779441
Flxq_auttrace_pre 960170
Flxq_auttrace_sqr 652217
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519431
Flxq_inv 335786
Flxq_inv_pre 4183799
Flxq_invsafe 669899
Flxq_invsafe_pre 5326231
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170638
Flxq_minpoly 45944
Flxq_minpoly_pre 809753
Flxq_mul 18079911
Flxq_mul_pre 190443132
Flxq_norm 443261
Flxq_order 97322
Flxq_pow 933204
Flxq_pow_Frobenius 21966850
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23015426
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232128
Flxq_powers_pre 22443203
Flxq_powu 488354
Flxq_powu_pre 24187401
Flxq_sqr 2763490
Flxq_sqr_pre 272409706
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23109
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210702
Flxq_sumautsum_sqr 295253
Flxq_trace 4724
Flxq_transmul 4212381
Flxq_transmul_init 1746354
RgXV_to_FlxV 7
RgX_to_Flx 2209607
Rg_to_F2 1715191
Rg_to_Fl 73083626
Rg_to_Flxq 3461425
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3799105
ZXV_to_FlxV 0
ZX_to_Flx 171063840
Z_mod2BIL_Flx 305860
Z_mod2BIL_Flx_2 308790
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593817
ZpX_invLaplace_init 504
_Fl2_mul 1925009
_Fl2_pow 672276
_Fl2_rand 113953
_Fl2_sqr 4907556
_Flx_add 0
_Flx_composedsum 3889
_Flx_divrem 0
_Flx_mul 11767430
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146004313
_Flxq_neg 366572
_Flxq_one 22442614
_Flxq_pow 21959441
_Flxq_powu 68
_Flxq_powu_i 22935096
_Flxq_rand 6578
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266141608
bounded_order 394030
gener_Flxq 7201
get_Fl_threshold 2310674812
get_Flx_red 984798522
get_Flxq_field 68902
get_Flxq_star 283454
init_invlaplace 12521
int_to_Flx 12210
int_to_Flx_half 507058
int_to_Flx_quart 109083
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21040520
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 5644706
kron_unpack_Flx_bits_wide 5697064
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8495822
mkF2 27663607
monomial_Flx 941329
random_Flx 2646211
set_Flxq 68922
set_Flxq_pre 68945720
translate_basecase 688306
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6402749

Generated by: LCOV version 1.16