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 30734-f1f26dedcb) Lines: 2553 2925 87.3 %
Date: 2026-03-04 09:24:31 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450263
Fl2_inv_pre 197449
Fl2_mul_pre 1954230
Fl2_norm_pre 127575
Fl2_pow_pre 672199
Fl2_sqr_pre 4914330
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76071
Fl_Flxq_log 35580
Fl_Xp1_powu 0
Fl_to_Flx 21960553
Flm_to_FlxV 2772
FlvV_polint_tree 2587810
Flv_Flm_polint 104560
Flv_inv 1744652
Flv_invVandermonde 153445
Flv_inv_i 1756668
Flv_inv_indir 52217
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21262916
Flv_inv_pre_inplace 19520750
Flv_polint 1485373
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745855
Flv_roots_to_pol 842229
Flv_to_Flx 25491010
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 325153
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
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 295190
FlxV_Flc_mul 34479
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28977
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171865
FlxV_to_Flm_lg 12970420
FlxV_to_FlxX 397987
FlxV_to_ZXV 605999
FlxV_to_ZXV_inplace 3031989
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9842345
Flx_Fl_mul 7317074
Flx_Fl_mul_pre 18064900
Flx_Fl_mul_to_monic 11854479
Flx_Fl_sub 151691
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786162
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169354
Flx_Flxq_eval 791134
Flx_Flxq_eval_pre 2444040
Flx_Frobenius 86619
Flx_Frobenius_pre 13819444
Flx_Laplace 27492
Flx_Newton 54395
Flx_add 66009534
Flx_addmulmul 358985
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 528019
Flx_blocks_Flm 12970156
Flx_composedprod 0
Flx_composedsum 27699
Flx_convol 0
Flx_deflate 421252
Flx_deriv 22986210
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36623166
Flx_divrem 30197968
Flx_divrem_Barrett 604860
Flx_divrem_Barrettspec 906379
Flx_divrem_basecase 61155833
Flx_divrem_pre 78346686
Flx_double 2299328
Flx_equal 26880486
Flx_eval 20442036
Flx_eval2BILspec 603303
Flx_eval_powers_pre 48647050
Flx_eval_pre 136205192
Flx_extgcd 856969
Flx_extgcd_basecase 6166434
Flx_extgcd_halfgcd 126069
Flx_extgcd_pre 6166434
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109544
Flx_gcd 35034141
Flx_gcd_basecase 85825456
Flx_gcd_pre 87482684
Flx_get_red 14510352
Flx_get_red_pre 97025022
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087279
Flx_halfgcd_all_pre 1087281
Flx_halfgcd_pre 872830
Flx_halfres_basecase 1094357
Flx_halfres_i 1114323
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160529
Flx_integ 0
Flx_integXn 423403
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158847
Flx_invLaplace 54672
Flx_is_l_pow 8146
Flx_is_smooth 74256
Flx_is_smooth_pre 118368
Flx_is_smooth_squarefree 126558
Flx_is_squarefree 9181419
Flx_lgrenormalizespec 2134910
Flx_matFrobenius 0
Flx_matFrobenius_pre 86558
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4907997
Flx_mul 26553435
Flx_mul_pre 377006127
Flx_mulhigh_i 950790
Flx_mullimb 1187620125
Flx_mullimb_ok 3348338493
Flx_mulspec 382586055
Flx_mulspec_Kronecker 7334627
Flx_mulspec_basecase 344898789
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10142
Flx_mulspec_mulii_inflate 294050
Flx_mulspec_quartmulii 97167
Flx_neg 3263362
Flx_neg_inplace 1767867
Flx_negspec 3263345
Flx_normalize 64894528
Flx_powu 0
Flx_powu_pre 3931
Flx_recip 0
Flx_recipspec 7287730
Flx_red 1882305
Flx_rem 42224845
Flx_rem_basecase 798447734
Flx_rem_pre 922441943
Flx_renormalize 2141909325
Flx_rescale 1117
Flx_resultant 4732359
Flx_resultant_basecase_pre 14598843
Flx_resultant_pre 14600734
Flx_shift 27403604
Flx_shiftip 629706372
Flx_splitting 147020
Flx_sqr 354468
Flx_sqr_pre 276179451
Flx_sqrspec 276255170
Flx_sqrspec_Kronecker 676987
Flx_sqrspec_basecase 275418616
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136319144
Flx_subspec 898822
Flx_to_Flv 66654706
Flx_to_FlxX 71403
Flx_to_ZX 38072420
Flx_to_ZX_inplace 36279640
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 983881
Flx_unscale 0
Flx_val 4476823
Flx_valrem 28541386
Flxn_div 56641
Flxn_div_pre 56648
Flxn_exp 0
Flxn_expint 109544
Flxn_inv 1037
Flxn_mul 75988
Flxn_mul_pre 5185378
Flxn_mulhigh 527976
Flxn_recip 218171
Flxn_red 6371271
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 113169
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20698
Flxq_autpow_pre 69349
Flxq_autpow_sqr 47114
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112105
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779423
Flxq_auttrace_pre 959755
Flxq_auttrace_sqr 652211
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237513
Flxq_div_pre 2312647
Flxq_easylog 519455
Flxq_inv 320037
Flxq_inv_pre 4166346
Flxq_invsafe 670515
Flxq_invsafe_pre 5309481
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113169
Flxq_lroot_pre 24983
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170643
Flxq_minpoly 45867
Flxq_minpoly_pre 809381
Flxq_mul 13191028
Flxq_mul_pre 187811795
Flxq_norm 443034
Flxq_order 97322
Flxq_pow 932717
Flxq_pow_Frobenius 22279848
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23327986
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 231164
Flxq_powers_pre 22443299
Flxq_powu 488156
Flxq_powu_pre 24183856
Flxq_sqr 2762173
Flxq_sqr_pre 275228710
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 4211060
Flxq_transmul_init 1745640
RgXV_to_FlxV 7
RgX_to_Flx 2193203
Rg_to_F2 1710393
Rg_to_Fl 72888075
Rg_to_Flxq 3586983
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3764775
ZXV_to_FlxV 0
ZX_to_Flx 169979574
Z_mod2BIL_Flx 305864
Z_mod2BIL_Flx_2 308794
Z_mod2BIL_Flx_3 0
Z_to_Flx 7576224
ZpX_invLaplace_init 497
_Fl2_mul 1925233
_Fl2_pow 672194
_Fl2_rand 113838
_Fl2_sqr 4914319
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11793966
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146838782
_Flxq_neg 366572
_Flxq_one 22446343
_Flxq_pow 22272435
_Flxq_powu 68
_Flxq_powu_i 22932485
_Flxq_rand 6575
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267587803
bounded_order 394029
gener_Flxq 7201
get_Fl_threshold 2320362142
get_Flx_red 985391771
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12216
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 20937765
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 5624135
kron_unpack_Flx_bits_wide 5669315
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8444712
mkF2 7328849
monomial_Flx 940922
random_Flx 2645221
set_Flxq 68922
set_Flxq_pre 69262047
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6412772

Generated by: LCOV version 1.16