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: 2026-03-09 09:24:55 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449952
Fl2_inv_pre 197319
Fl2_mul_pre 1952726
Fl2_norm_pre 127617
Fl2_pow_pre 671735
Fl2_sqr_pre 4909852
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76045
Fl_Flxq_log 35575
Fl_Xp1_powu 0
Fl_to_Flx 21971928
Flm_to_FlxV 2772
FlvV_polint_tree 2587737
Flv_Flm_polint 104559
Flv_inv 1744623
Flv_invVandermonde 153445
Flv_inv_i 1756638
Flv_inv_indir 52216
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21248568
Flv_inv_pre_inplace 19516659
Flv_polint 1485339
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745825
Flv_roots_to_pol 842176
Flv_to_Flx 25491311
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 325149
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 22301
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 291616
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28970
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171854
FlxV_to_Flm_lg 12970823
FlxV_to_FlxX 397987
FlxV_to_ZXV 606958
FlxV_to_ZXV_inplace 3031939
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9846992
Flx_Fl_mul 7326136
Flx_Fl_mul_pre 18099431
Flx_Fl_mul_to_monic 11853334
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786135
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169743
Flx_Flxq_eval 791483
Flx_Flxq_eval_pre 2444509
Flx_Frobenius 86619
Flx_Frobenius_pre 13818248
Flx_Laplace 27487
Flx_Newton 54391
Flx_add 66025990
Flx_addmulmul 358987
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527965
Flx_blocks_Flm 12970405
Flx_composedprod 0
Flx_composedsum 27699
Flx_convol 0
Flx_deflate 421272
Flx_deriv 22987091
Flx_diff1 14437
Flx_digits 0
Flx_div_by_X_x 36632609
Flx_divrem 30451716
Flx_divrem_Barrett 603866
Flx_divrem_Barrettspec 905673
Flx_divrem_basecase 61226561
Flx_divrem_pre 78670605
Flx_double 2299328
Flx_equal 26797099
Flx_eval 20459699
Flx_eval2BILspec 603311
Flx_eval_powers_pre 48662164
Flx_eval_pre 136218655
Flx_extgcd 857075
Flx_extgcd_basecase 6182669
Flx_extgcd_halfgcd 126071
Flx_extgcd_pre 6182668
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109536
Flx_gcd 35035328
Flx_gcd_basecase 85818569
Flx_gcd_pre 87485649
Flx_get_red 14509585
Flx_get_red_pre 96931192
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087635
Flx_halfgcd_all_pre 1087635
Flx_halfgcd_pre 872826
Flx_halfres_basecase 1094712
Flx_halfres_i 1114679
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160124
Flx_integ 0
Flx_integXn 423364
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158847
Flx_invLaplace 54645
Flx_is_l_pow 8196
Flx_is_smooth 74256
Flx_is_smooth_pre 118879
Flx_is_smooth_squarefree 127084
Flx_is_squarefree 9181709
Flx_lgrenormalizespec 2133225
Flx_matFrobenius 0
Flx_matFrobenius_pre 86553
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907351
Flx_mul 26712265
Flx_mul_pre 377316357
Flx_mulhigh_i 950514
Flx_mullimb 1188271873
Flx_mullimb_ok 3360207645
Flx_mulspec 382879639
Flx_mulspec_Kronecker 7331233
Flx_mulspec_basecase 345177671
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294054
Flx_mulspec_quartmulii 97165
Flx_neg 3263511
Flx_neg_inplace 1767867
Flx_negspec 3263490
Flx_normalize 64863145
Flx_powu 0
Flx_powu_pre 3874
Flx_recip 0
Flx_recipspec 7285963
Flx_red 1879125
Flx_rem 42234658
Flx_rem_basecase 799418317
Flx_rem_pre 923297652
Flx_renormalize 2144731057
Flx_rescale 1117
Flx_resultant 4732386
Flx_resultant_basecase_pre 14599167
Flx_resultant_pre 14601006
Flx_shift 27403916
Flx_shiftip 630774914
Flx_splitting 147042
Flx_sqr 354542
Flx_sqr_pre 276795454
Flx_sqrspec 276954325
Flx_sqrspec_Kronecker 676929
Flx_sqrspec_basecase 276068057
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136458846
Flx_subspec 897953
Flx_to_Flv 66653747
Flx_to_FlxX 71405
Flx_to_ZX 38306318
Flx_to_ZX_inplace 36531492
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204548
Flx_translate1 17097
Flx_translate1_basecase 29190
Flx_triple 984021
Flx_unscale 0
Flx_val 4479297
Flx_valrem 28517968
Flxn_div 56626
Flxn_div_pre 56649
Flxn_exp 0
Flxn_expint 109543
Flxn_inv 1037
Flxn_mul 75973
Flxn_mul_pre 5185121
Flxn_mulhigh 527901
Flxn_recip 218115
Flxn_red 6370640
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 69408
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779455
Flxq_auttrace_pre 959791
Flxq_auttrace_sqr 652228
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237793
Flxq_div_pre 2312926
Flxq_easylog 519440
Flxq_inv 335765
Flxq_inv_pre 4182625
Flxq_invsafe 670375
Flxq_invsafe_pre 5325607
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 170638
Flxq_minpoly 45937
Flxq_minpoly_pre 809435
Flxq_mul 13193814
Flxq_mul_pre 187792580
Flxq_norm 443113
Flxq_order 97322
Flxq_pow 932903
Flxq_pow_Frobenius 22191998
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23240271
Flxq_pow_table 0
Flxq_pow_table_pre 4394
Flxq_powers 232126
Flxq_powers_pre 22444665
Flxq_powu 488365
Flxq_powu_pre 24184550
Flxq_sqr 2763155
Flxq_sqr_pre 275854279
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21899
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4211106
Flxq_transmul_init 1745639
RgXV_to_FlxV 7
RgX_to_Flx 2193198
Rg_to_F2 1710316
Rg_to_Fl 72890265
Rg_to_Flxq 3588162
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797108
ZXV_to_FlxV 0
ZX_to_Flx 170954737
Z_mod2BIL_Flx 305868
Z_mod2BIL_Flx_2 308798
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593467
ZpX_invLaplace_init 497
_Fl2_mul 1923689
_Fl2_pow 671722
_Fl2_rand 113784
_Fl2_sqr 4909845
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11803166
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146808369
_Flxq_neg 366572
_Flxq_one 22445920
_Flxq_pow 22184591
_Flxq_powu 68
_Flxq_powu_i 22931330
_Flxq_rand 6579
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268202771
bounded_order 394025
gener_Flxq 7201
get_Fl_threshold 2322968985
get_Flx_red 986340859
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 20933009
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 5621196
kron_unpack_Flx_bits_wide 5669234
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8442074
mkF2 7322683
monomial_Flx 940915
random_Flx 2645492
set_Flxq 68922
set_Flxq_pre 69173689
translate_basecase 42356
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6410156

Generated by: LCOV version 1.16