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 30719-2b7f142d49) Lines: 2553 2925 87.3 %
Date: 2026-02-28 09:24:01 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450016
Fl2_inv_pre 197296
Fl2_mul_pre 1953720
Fl2_norm_pre 127571
Fl2_pow_pre 671804
Fl2_sqr_pre 4912628
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76053
Fl_Flxq_log 35547
Fl_Xp1_powu 0
Fl_to_Flx 21959173
Flm_to_FlxV 2772
FlvV_polint_tree 2587421
Flv_Flm_polint 104560
Flv_inv 1744443
Flv_invVandermonde 153445
Flv_inv_i 1756453
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21209422
Flv_inv_pre_inplace 19461497
Flv_polint 1485164
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745643
Flv_roots_to_pol 842151
Flv_to_Flx 25486487
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 325156
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 300315
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28987
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171877
FlxV_to_Flm_lg 12967648
FlxV_to_FlxX 397987
FlxV_to_ZXV 606842
FlxV_to_ZXV_inplace 3031556
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845911
Flx_Fl_mul 7328790
Flx_Fl_mul_pre 18100907
Flx_Fl_mul_to_monic 11855137
Flx_Fl_sub 151683
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785950
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166788
Flx_Flxq_eval 791304
Flx_Flxq_eval_pre 2444518
Flx_Frobenius 86619
Flx_Frobenius_pre 13813386
Flx_Laplace 27351
Flx_Newton 54104
Flx_add 66004522
Flx_addmulmul 358986
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526329
Flx_blocks_Flm 12967366
Flx_composedprod 0
Flx_composedsum 27553
Flx_convol 0
Flx_deflate 420782
Flx_deriv 22981396
Flx_diff1 14448
Flx_digits 0
Flx_div_by_X_x 36616426
Flx_divrem 30447807
Flx_divrem_Barrett 606267
Flx_divrem_Barrettspec 907744
Flx_divrem_basecase 61218718
Flx_divrem_pre 78660717
Flx_double 2299328
Flx_equal 27233270
Flx_eval 20455843
Flx_eval2BILspec 603305
Flx_eval_powers_pre 48687078
Flx_eval_pre 136204627
Flx_extgcd 856773
Flx_extgcd_basecase 6182474
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6182476
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109402
Flx_gcd 35019874
Flx_gcd_basecase 85780112
Flx_gcd_pre 87445210
Flx_get_red 14503908
Flx_get_red_pre 97349106
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1088161
Flx_halfgcd_all_pre 1088162
Flx_halfgcd_pre 873279
Flx_halfres_basecase 1095241
Flx_halfres_i 1115205
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160804
Flx_integ 0
Flx_integXn 422797
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134391
Flx_invBarrett_pre 158851
Flx_invLaplace 54368
Flx_is_l_pow 8149
Flx_is_smooth 74256
Flx_is_smooth_pre 118344
Flx_is_smooth_squarefree 126502
Flx_is_squarefree 9180954
Flx_lgrenormalizespec 2137144
Flx_matFrobenius 0
Flx_matFrobenius_pre 86570
Flx_mod_Xn1 31509
Flx_mod_Xnm1 4907605
Flx_mul 26720535
Flx_mul_pre 377993165
Flx_mulhigh_i 948208
Flx_mullimb 1185984641
Flx_mullimb_ok 3365961067
Flx_mulspec 383552532
Flx_mulspec_Kronecker 7336688
Flx_mulspec_basecase 345868505
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10145
Flx_mulspec_mulii_inflate 294051
Flx_mulspec_quartmulii 97167
Flx_neg 3265582
Flx_neg_inplace 1767761
Flx_negspec 3265604
Flx_normalize 64857498
Flx_powu 0
Flx_powu_pre 4012
Flx_recip 0
Flx_recipspec 7291993
Flx_red 1885453
Flx_rem 42240820
Flx_rem_basecase 799821974
Flx_rem_pre 923894266
Flx_renormalize 2145900922
Flx_rescale 1117
Flx_resultant 4731930
Flx_resultant_basecase_pre 14597693
Flx_resultant_pre 14599568
Flx_shift 27398587
Flx_shiftip 631257146
Flx_splitting 148010
Flx_sqr 354792
Flx_sqr_pre 276604724
Flx_sqrspec 276740902
Flx_sqrspec_Kronecker 677066
Flx_sqrspec_basecase 275908505
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2067
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136442601
Flx_subspec 900109
Flx_to_Flv 66644940
Flx_to_FlxX 71405
Flx_to_ZX 38299834
Flx_to_ZX_inplace 36533317
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17108
Flx_translate1_basecase 29202
Flx_triple 984021
Flx_unscale 0
Flx_val 4479414
Flx_valrem 28518162
Flxn_div 56340
Flxn_div_pre 56360
Flxn_exp 0
Flxn_expint 109395
Flxn_inv 1037
Flxn_mul 75846
Flxn_mul_pre 5180243
Flxn_mulhigh 526258
Flxn_recip 217395
Flxn_red 6362023
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 69414
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 780124
Flxq_auttrace_pre 959978
Flxq_auttrace_sqr 652821
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2313025
Flxq_easylog 519338
Flxq_inv 335768
Flxq_inv_pre 4182631
Flxq_invsafe 670492
Flxq_invsafe_pre 5325720
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 170663
Flxq_minpoly 45937
Flxq_minpoly_pre 809767
Flxq_mul 13192553
Flxq_mul_pre 188499328
Flxq_norm 443094
Flxq_order 97322
Flxq_pow 932783
Flxq_pow_Frobenius 22629697
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23677782
Flxq_pow_table 0
Flxq_pow_table_pre 4392
Flxq_powers 232014
Flxq_powers_pre 22436897
Flxq_powu 488333
Flxq_powu_pre 24178362
Flxq_sqr 2763157
Flxq_sqr_pre 275652634
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37667
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 4213041
Flxq_transmul_init 1746552
RgXV_to_FlxV 7
RgX_to_Flx 2205396
Rg_to_F2 1710503
Rg_to_Fl 72937210
Rg_to_Flxq 3588222
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3799117
ZXV_to_FlxV 0
ZX_to_Flx 170971270
Z_mod2BIL_Flx 305865
Z_mod2BIL_Flx_2 308795
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556540
ZpX_invLaplace_init 497
_Fl2_mul 1924693
_Fl2_pow 671802
_Fl2_rand 113822
_Fl2_sqr 4912634
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11787964
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147518014
_Flxq_neg 366572
_Flxq_one 22437734
_Flxq_pow 22622290
_Flxq_powu 68
_Flxq_powu_i 22924316
_Flxq_rand 6569
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268022403
bounded_order 393986
gener_Flxq 7201
get_Fl_threshold 2324125705
get_Flx_red 986838066
get_Flxq_field 68902
get_Flxq_star 283433
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 20942746
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 5628496
kron_unpack_Flx_bits_wide 5667852
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8447573
mkF2 7327331
monomial_Flx 941362
random_Flx 2646082
set_Flxq 68922
set_Flxq_pre 69596058
translate_basecase 42367
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6425651

Generated by: LCOV version 1.16