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: 2026-03-08 09:23:56 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449652
Fl2_inv_pre 197220
Fl2_mul_pre 1951942
Fl2_norm_pre 127560
Fl2_pow_pre 671320
Fl2_sqr_pre 4907934
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 75992
Fl_Flxq_log 35575
Fl_Xp1_powu 0
Fl_to_Flx 21968668
Flm_to_FlxV 2772
FlvV_polint_tree 2587751
Flv_Flm_polint 104561
Flv_inv 1744658
Flv_invVandermonde 153445
Flv_inv_i 1756672
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21153699
Flv_inv_pre_inplace 19419925
Flv_polint 1485381
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745866
Flv_roots_to_pol 842200
Flv_to_Flx 25491872
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 325155
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 297201
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 171857
FlxV_to_Flm_lg 12970777
FlxV_to_FlxX 397987
FlxV_to_ZXV 606968
FlxV_to_ZXV_inplace 3031946
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9843045
Flx_Fl_mul 7327857
Flx_Fl_mul_pre 18099978
Flx_Fl_mul_to_monic 11853518
Flx_Fl_sub 151687
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786166
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169689
Flx_Flxq_eval 791491
Flx_Flxq_eval_pre 2444517
Flx_Frobenius 86618
Flx_Frobenius_pre 13818699
Flx_Laplace 27489
Flx_Newton 54398
Flx_add 66015476
Flx_addmulmul 358985
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527932
Flx_blocks_Flm 12970308
Flx_composedprod 0
Flx_composedsum 27700
Flx_convol 0
Flx_deflate 421261
Flx_deriv 22986618
Flx_diff1 14390
Flx_digits 0
Flx_div_by_X_x 36621523
Flx_divrem 30451927
Flx_divrem_Barrett 605343
Flx_divrem_Barrettspec 907116
Flx_divrem_basecase 61224358
Flx_divrem_pre 78666078
Flx_double 2299328
Flx_equal 28823517
Flx_eval 20450679
Flx_eval2BILspec 603303
Flx_eval_powers_pre 48646086
Flx_eval_pre 136206621
Flx_extgcd 857095
Flx_extgcd_basecase 6182845
Flx_extgcd_halfgcd 126071
Flx_extgcd_pre 6182849
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109536
Flx_gcd 35031839
Flx_gcd_basecase 85808144
Flx_gcd_pre 87477338
Flx_get_red 14509301
Flx_get_red_pre 99021483
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087330
Flx_halfgcd_all_pre 1087333
Flx_halfgcd_pre 872846
Flx_halfres_basecase 1094404
Flx_halfres_i 1114374
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160573
Flx_integ 0
Flx_integXn 423341
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134388
Flx_invBarrett_pre 158849
Flx_invLaplace 54646
Flx_is_l_pow 8160
Flx_is_smooth 74256
Flx_is_smooth_pre 118242
Flx_is_smooth_squarefree 126373
Flx_is_squarefree 9181808
Flx_lgrenormalizespec 2136180
Flx_matFrobenius 0
Flx_matFrobenius_pre 86553
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907475
Flx_mul 26709233
Flx_mul_pre 381289571
Flx_mulhigh_i 950338
Flx_mullimb 1189459531
Flx_mullimb_ok 3405073400
Flx_mulspec 386888053
Flx_mulspec_Kronecker 7335547
Flx_mulspec_basecase 349193452
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294050
Flx_mulspec_quartmulii 97167
Flx_neg 3264910
Flx_neg_inplace 1767867
Flx_negspec 3264896
Flx_normalize 64854207
Flx_powu 0
Flx_powu_pre 3960
Flx_recip 0
Flx_recipspec 7288885
Flx_red 1884046
Flx_rem 42230879
Flx_rem_basecase 804674848
Flx_rem_pre 928665084
Flx_renormalize 2154554741
Flx_rescale 1117
Flx_resultant 4732492
Flx_resultant_basecase_pre 14598573
Flx_resultant_pre 14600554
Flx_shift 27402181
Flx_shiftip 636165835
Flx_splitting 147669
Flx_sqr 354652
Flx_sqr_pre 278202616
Flx_sqrspec 278320410
Flx_sqrspec_Kronecker 677009
Flx_sqrspec_basecase 277481863
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2066
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136453474
Flx_subspec 899395
Flx_to_Flv 66653421
Flx_to_FlxX 71405
Flx_to_ZX 38305954
Flx_to_ZX_inplace 36531762
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17049
Flx_translate1_basecase 29136
Flx_triple 984021
Flx_unscale 0
Flx_val 4476971
Flx_valrem 28507708
Flxn_div 56634
Flxn_div_pre 56653
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75984
Flxn_mul_pre 5184448
Flxn_mulhigh 527884
Flxn_recip 218147
Flxn_red 6369271
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 69413
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 779463
Flxq_auttrace_pre 959801
Flxq_auttrace_sqr 652226
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237793
Flxq_div_pre 2312927
Flxq_easylog 519453
Flxq_inv 335772
Flxq_inv_pre 4182669
Flxq_invsafe 670497
Flxq_invsafe_pre 5325774
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164209
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 809437
Flxq_mul 13193907
Flxq_mul_pre 191825822
Flxq_norm 443109
Flxq_order 97322
Flxq_pow 932918
Flxq_pow_Frobenius 24281807
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 25330105
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232134
Flxq_powers_pre 22444995
Flxq_powu 488362
Flxq_powu_pre 24182238
Flxq_sqr 2763146
Flxq_sqr_pre 277241487
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4211166
Flxq_transmul_init 1745650
RgXV_to_FlxV 7
RgX_to_Flx 2193194
Rg_to_F2 1710437
Rg_to_Fl 72888600
Rg_to_Flxq 3588116
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3798734
ZXV_to_FlxV 0
ZX_to_Flx 170951135
Z_mod2BIL_Flx 305864
Z_mod2BIL_Flx_2 308794
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593740
ZpX_invLaplace_init 497
_Fl2_mul 1922892
_Fl2_pow 671306
_Fl2_rand 113729
_Fl2_sqr 4907965
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794057
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 150843564
_Flxq_neg 366572
_Flxq_one 22446290
_Flxq_pow 24274397
_Flxq_powu 68
_Flxq_powu_i 22929440
_Flxq_rand 6573
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 269571001
bounded_order 394022
gener_Flxq 7201
get_Fl_threshold 2340576497
get_Flx_red 991588152
get_Flxq_field 68902
get_Flxq_star 283432
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 20939875
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 5625876
kron_unpack_Flx_bits_wide 5669629
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8446794
mkF2 7319826
monomial_Flx 940935
random_Flx 2645528
set_Flxq 68922
set_Flxq_pre 71260258
translate_basecase 42305
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6415190

Generated by: LCOV version 1.16