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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 86.6 % 2953 2556
Test Date: 2026-10-08 17:02:35 Functions: 82.2 % 370 304
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
Fl2_equal1 457314
Fl2_inv_pre 200520
Fl2_mul_pre 17130626
Fl2_norm_pre 97119263
Fl2_pow_pre 682723
Fl2_sqr_pre 5019976
Fl2_sqrt_pre 65964
Fl2_sqrtn_pre 77212
Fl_Flxq_log 35434
Fl_Xp1_powu 0
Fl_to_Flx 22909300
Flm_to_FlxV 2772
FlvV_polint_tree 2648347
Flv_Flm_polint 105896
Flv_inv 1746445
Flv_invVandermonde 153445
Flv_inv_i 1758462
Flv_inv_indir 52847
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21808766
Flv_inv_pre_inplace 20093506
Flv_polint 1485832
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1747651
Flv_roots_to_pol 904227
Flv_to_Flx 26082361
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 325162
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104095
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26703
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7297
FlxM_mul_Kronecker_i 82442
FlxM_neg 0
FlxM_pack_ZM 47865
FlxM_pack_ZM_bits 116931
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 296933
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2478
FlxV_Flv_multieval_tree 2478
FlxV_Flx_fromdigits 0
FlxV_composedsum 29001
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 172474
FlxV_to_Flm_lg 13200323
FlxV_to_FlxX 410249
FlxV_to_ZXV 610800
FlxV_to_ZXV_inplace 3036630
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9951227
Flx_Fl_mul 9480889
Flx_Fl_mul_pre 20388413
Flx_Fl_mul_to_monic 11913450
Flx_Fl_sub 151982
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1788370
Flx_FlxM_qmul 7125
Flx_FlxqV_eval 5124
Flx_FlxqV_eval_pre 13455889
Flx_Flxq_eval 804894
Flx_Flxq_eval_pre 2533440
Flx_Frobenius 87438
Flx_Frobenius_pre 14056388
Flx_Laplace 27566
Flx_Newton 54528
Flx_add 77212264
Flx_addmulmul 360267
Flx_addshift 3975516
Flx_addspec 7743591
Flx_blocks 529859
Flx_blocks_Flm 13200323
Flx_composedprod 0
Flx_composedsum 27768
Flx_convol 0
Flx_deflate 421874
Flx_deriv 23061576
Flx_diff1 660758
Flx_digits 0
Flx_div_by_X_x 40744801
Flx_divrem 29838752
Flx_divrem_Barrett 637844
Flx_divrem_Barrettspec 952439
Flx_divrem_basecase 61530779
Flx_divrem_pre 78295659
Flx_double 1182839
Flx_equal 26157550
Flx_eval 20507456
Flx_eval2BILspec 681443
Flx_eval_powers_pre 49691503
Flx_eval_pre 136436477
Flx_extgcd 861768
Flx_extgcd_basecase 6256107
Flx_extgcd_halfgcd 122284
Flx_extgcd_pre 6256107
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109615
Flx_gcd 36624272
Flx_gcd_basecase 87736900
Flx_gcd_pre 89495865
Flx_get_red 14550208
Flx_get_red_pre 97990855
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1091636
Flx_halfgcd_all_pre 1091636
Flx_halfgcd_pre 879124
Flx_halfres_basecase 1098870
Flx_halfres_i 1119383
Flx_halfres_pre 1044
Flx_halfres_split 20513
Flx_halfres_update_pre 9405
Flx_halve 13965
Flx_inflate 160471
Flx_integ 0
Flx_integXn 423966
Flx_invBarrett 0
Flx_invBarrett_Newton 24098
Flx_invBarrett_basecase 135146
Flx_invBarrett_pre 160547
Flx_invLaplace 54830
Flx_is_l_pow 8144
Flx_is_smooth 74256
Flx_is_smooth_pre 118353
Flx_is_smooth_squarefree 126497
Flx_is_squarefree 9229642
Flx_lgrenormalizespec 2243594
Flx_matFrobenius 0
Flx_matFrobenius_pre 86900
Flx_mod_Xn1 31663
Flx_mod_Xnm1 4920981
Flx_mul 26812955
Flx_mul_pre 392870882
Flx_mulhigh_i 953825
Flx_mullimb 1231852880
Flx_mullimb_ok 3467043981
Flx_mulspec 398916206
Flx_mulspec_Kronecker 7773230
Flx_mulspec_basecase 355732148
Flx_mulspec_halfmulii 5543
Flx_mulspec_mulii 11437
Flx_mulspec_mulii_inflate 332295
Flx_mulspec_quartmulii 101277
Flx_neg 4268113
Flx_neg_inplace 1894846
Flx_negspec 4268113
Flx_normalize 67784092
Flx_powu 0
Flx_powu_pre 3956
Flx_recip 0
Flx_recipspec 7419689
Flx_red 1885989
Flx_rem 42358996
Flx_rem_basecase 814541192
Flx_rem_pre 957164444
Flx_renormalize 2232617810
Flx_rescale 1117
Flx_resultant 4738242
Flx_resultant_basecase_pre 14609942
Flx_resultant_pre 14611384
Flx_shift 27607640
Flx_shiftip 648218867
Flx_splitting 148727
Flx_sqr 394093
Flx_sqr_pre 282428934
Flx_sqrspec 282559722
Flx_sqrspec_Kronecker 728853
Flx_sqrspec_basecase 281491431
Flx_sqrspec_halfsqri 139
Flx_sqrspec_quartsqri 10743
Flx_sqrspec_sqri 3012
Flx_sqrspec_sqri_inflate 13464
Flx_sub 141563449
Flx_subspec 944453
Flx_to_Flv 67411610
Flx_to_FlxX 71583
Flx_to_ZX 38526057
Flx_to_ZX_inplace 36059891
Flx_to_int_halfspec 556176
Flx_to_int_quartspec 213297
Flx_translate1 663418
Flx_translate1_basecase 675512
Flx_triple 551631
Flx_unscale 0
Flx_val 4589010
Flx_valrem 31190092
Flxn_div 56825
Flxn_div_pre 56825
Flxn_exp 0
Flxn_expint 109615
Flxn_inv 1037
Flxn_mul 76054
Flxn_mul_pre 5222782
Flxn_mulhigh 529859
Flxn_recip 218671
Flxn_red 6416439
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 247515
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 82442
FlxqM_red_pre 82442
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 114702
FlxqX_dotproduct 1932
Flxq_autpow 7
Flxq_autpow_msqr 46261
Flxq_autpow_pre 98545
Flxq_autpow_sqr 77465
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112051
Flxq_autsum_pre 98545
Flxq_autsum_sqr 104874
Flxq_auttrace 0
Flxq_auttrace_mul 800206
Flxq_auttrace_pre 978273
Flxq_auttrace_sqr 668568
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1170208
Flxq_div_pre 2323066
Flxq_easylog 519245
Flxq_inv 335914
Flxq_inv_pre 4240151
Flxq_invsafe 671083
Flxq_invsafe_pre 5394339
Flxq_is2npower 0
Flxq_issquare 402057
Flxq_log 164217
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 114702
Flxq_lroot_pre 54306
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 171249
Flxq_minpoly 45978
Flxq_minpoly_pre 815539
Flxq_mul 18090061
Flxq_mul_pre 194136303
Flxq_norm 440670
Flxq_order 97052
Flxq_pow 934197
Flxq_pow_Frobenius 22278848
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23328326
Flxq_pow_table 0
Flxq_pow_table_pre 4391
Flxq_powers 232437
Flxq_powers_pre 22639091
Flxq_powu 500641
Flxq_powu_pre 24517136
Flxq_sqr 2760616
Flxq_sqr_pre 281518589
Flxq_sqrt 230608
Flxq_sqrt_pre 230608
Flxq_sqrtl_spec_pre 37674
Flxq_sqrtn 23128
Flxq_sqrtn_spec_pre 21915
Flxq_sumautsum_msqr 39750
Flxq_sumautsum_pre 209819
Flxq_sumautsum_sqr 295304
Flxq_trace 4434
Flxq_transmul 4244410
Flxq_transmul_init 1758248
RgXV_to_FlxV 14
RgX_to_Flx 2228655
Rg_to_F2 1716374
Rg_to_Fl 81121138
Rg_to_Flxq 3532267
ZM_unpack_FlxM 23936
ZM_unpack_FlxM_bits 58506
ZXT_to_FlxT 3834142
ZXV_to_FlxV 0
ZX_to_Flx 170271670
Z_mod2BIL_Flx 345759
Z_mod2BIL_Flx_2 348689
Z_mod2BIL_Flx_3 0
Z_to_Flx 7605318
ZpX_invLaplace_init 504
_Fl2_mul 1962263
_Fl2_pow 682723
_Fl2_rand 115574
_Fl2_sqr 5019976
_Flx_add 0
_Flx_composedsum 3896
_Flx_divrem 0
_Flx_mul 13261324
_Flx_one 0
_Flx_pow 0
_Flx_red 0
_Flx_sqr 0
_Flx_sub 0
_Flx_zero 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149131689
_Flxq_neg 366572
_Flxq_one 22643482
_Flxq_pow 22271424
_Flxq_powu 68
_Flxq_powu_i 23259676
_Flxq_rand 6292
_Flxq_red 1549491
_Flxq_rmul 1460401
_Flxq_s 6567
_Flxq_sqr 275428341
_Flxq_sub 0
_Flxq_zero 0
bounded_order 393699
gener_Flxq 7201
get_Fl_threshold 2386181867
get_Flx_algebra 0
get_Flx_red 1020587590
get_Flxq_algebra 0
get_Flxq_field 68791
get_Flxq_star 283184
init_invlaplace 12521
int_to_Flx 14449
int_to_Flx_half 733977
int_to_Flx_quart 112020
kron_pack_Flx_spec 85585
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 22399713
kron_pack_Flx_spec_half 891277
kron_unpack_Flx 78984
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 6453322
kron_unpack_Flx_bits_wide 5979491
matJ2_FlxM 13
matid2_FlxM 955
maxbitcoeffpol 8979993
mkF2 27821383
monomial_Flx 947358
random_Flx 2666650
set_Flxq 68811
set_Flxq_pre 69839433
translate_basecase 688677
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6499653

Generated by: LCOV version 2.0-1