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 30625-1bbc371a2f) Lines: 2553 2925 87.3 %
Date: 2026-01-23 09:24:12 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450063
Fl2_inv_pre 197404
Fl2_mul_pre 1954197
Fl2_norm_pre 127596
Fl2_pow_pre 671940
Fl2_sqr_pre 4914290
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76075
Fl_Flxq_log 35549
Fl_Xp1_powu 0
Fl_to_Flx 21949132
Flm_to_FlxV 2772
FlvV_polint_tree 2587560
Flv_Flm_polint 104561
Flv_inv 1744432
Flv_invVandermonde 153445
Flv_inv_i 1756447
Flv_inv_indir 52215
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21227962
Flv_inv_pre_inplace 19480333
Flv_polint 1485164
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745661
Flv_roots_to_pol 842149
Flv_to_Flx 25488501
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 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 293141
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28959
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171878
FlxV_to_Flm_lg 12968071
FlxV_to_FlxX 397977
FlxV_to_ZXV 606735
FlxV_to_ZXV_inplace 3031571
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9845964
Flx_Fl_mul 7326837
Flx_Fl_mul_pre 18289770
Flx_Fl_mul_to_monic 11855809
Flx_Fl_sub 151678
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785957
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166879
Flx_Flxq_eval 791309
Flx_Flxq_eval_pre 2444646
Flx_Frobenius 86619
Flx_Frobenius_pre 13813322
Flx_Laplace 27350
Flx_Newton 54095
Flx_add 66134551
Flx_addmulmul 416803
Flx_addshift 3724675
Flx_addspec 7250880
Flx_blocks 517501
Flx_blocks_Flm 12967837
Flx_composedprod 0
Flx_composedsum 27553
Flx_convol 0
Flx_deflate 420773
Flx_deriv 22982222
Flx_diff1 14445
Flx_digits 0
Flx_div_by_X_x 36632108
Flx_divrem 30449622
Flx_divrem_Barrett 604291
Flx_divrem_Barrettspec 904538
Flx_divrem_basecase 62281649
Flx_divrem_pre 79723939
Flx_double 2443925
Flx_equal 28243555
Flx_eval 20456911
Flx_eval2BILspec 603283
Flx_eval_powers_pre 48773146
Flx_eval_pre 136185251
Flx_extgcd 856695
Flx_extgcd_basecase 6285804
Flx_extgcd_halfgcd 146653
Flx_extgcd_pre 6285802
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109399
Flx_gcd 35045463
Flx_gcd_basecase 85800231
Flx_gcd_pre 87461105
Flx_get_red 14502440
Flx_get_red_pre 98411734
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126882
Flx_halfgcd_all_pre 1126882
Flx_halfgcd_pre 873200
Flx_halfres_basecase 1133958
Flx_halfres_i 1153926
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160152
Flx_integ 0
Flx_integXn 422812
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134392
Flx_invBarrett_pre 158852
Flx_invLaplace 54371
Flx_is_l_pow 8140
Flx_is_smooth 74256
Flx_is_smooth_pre 118136
Flx_is_smooth_squarefree 126243
Flx_is_squarefree 9180601
Flx_lgrenormalizespec 2133539
Flx_matFrobenius 0
Flx_matFrobenius_pre 86567
Flx_mod_Xn1 31510
Flx_mod_Xnm1 4908540
Flx_mul 27806996
Flx_mul_pre 382018669
Flx_mulhigh_i 939776
Flx_mullimb 1191030944
Flx_mullimb_ok 3404555390
Flx_mulspec 387705597
Flx_mulspec_Kronecker 7347247
Flx_mulspec_basecase 350161871
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10139
Flx_mulspec_mulii_inflate 294040
Flx_mulspec_quartmulii 97167
Flx_neg 3264008
Flx_neg_inplace 1777875
Flx_negspec 3264001
Flx_normalize 64904788
Flx_powu 0
Flx_powu_pre 3898
Flx_recip 0
Flx_recipspec 7287484
Flx_red 1879141
Flx_rem 42232581
Flx_rem_basecase 803573310
Flx_rem_pre 927352156
Flx_renormalize 2163043001
Flx_rescale 1117
Flx_resultant 4733516
Flx_resultant_basecase_pre 14597995
Flx_resultant_pre 14600067
Flx_shift 27383371
Flx_shiftip 636587886
Flx_splitting 147208
Flx_sqr 354654
Flx_sqr_pre 277389293
Flx_sqrspec 277677654
Flx_sqrspec_Kronecker 695036
Flx_sqrspec_basecase 277497462
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138637462
Flx_subspec 898042
Flx_to_Flv 66647113
Flx_to_FlxX 71405
Flx_to_ZX 38298999
Flx_to_ZX_inplace 36571700
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204552
Flx_translate1 17105
Flx_translate1_basecase 29199
Flx_triple 1049261
Flx_unscale 0
Flx_val 4492830
Flx_valrem 28540336
Flxn_div 55206
Flxn_div_pre 55216
Flxn_exp 0
Flxn_expint 109394
Flxn_inv 1037
Flxn_mul 75836
Flxn_mul_pre 5163286
Flxn_mulhigh 517453
Flxn_recip 217459
Flxn_red 6337474
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20700
Flxq_autpow_pre 69451
Flxq_autpow_sqr 47325
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112487
Flxq_autsum_pre 98773
Flxq_autsum_sqr 105122
Flxq_auttrace 0
Flxq_auttrace_mul 780140
Flxq_auttrace_pre 959876
Flxq_auttrace_sqr 652807
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519349
Flxq_inv 335768
Flxq_inv_pre 4286494
Flxq_invsafe 670092
Flxq_invsafe_pre 5429143
Flxq_is2npower 0
Flxq_issquare 404492
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 170658
Flxq_minpoly 45937
Flxq_minpoly_pre 809665
Flxq_mul 13192457
Flxq_mul_pre 190677464
Flxq_norm 443133
Flxq_order 97328
Flxq_pow 948233
Flxq_pow_Frobenius 23681588
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24745015
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232006
Flxq_powers_pre 22436438
Flxq_powu 488331
Flxq_powu_pre 24175838
Flxq_sqr 2763147
Flxq_sqr_pre 276416009
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37665
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212718
Flxq_transmul_init 1746378
RgXV_to_FlxV 7
RgX_to_Flx 2249942
Rg_to_F2 1710125
Rg_to_Fl 73210337
Rg_to_Flxq 3588236
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3812696
ZXV_to_FlxV 0
ZX_to_Flx 171034725
Z_mod2BIL_Flx 305854
Z_mod2BIL_Flx_2 308784
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556585
ZpX_invLaplace_init 497
_Fl2_mul 1925168
_Fl2_pow 671937
_Fl2_rand 113873
_Fl2_sqr 4914431
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794015
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149489980
_Flxq_neg 366572
_Flxq_one 22437857
_Flxq_pow 23674175
_Flxq_powu 68
_Flxq_powu_i 22921709
_Flxq_rand 6557
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268671863
bounded_order 395382
gener_Flxq 7201
get_Fl_threshold 2340708728
get_Flx_red 991368732
get_Flxq_field 68902
get_Flxq_star 283439
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 20982134
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 5656702
kron_unpack_Flx_bits_wide 5666540
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8475549
mkF2 7328907
monomial_Flx 941287
random_Flx 2646010
set_Flxq 68922
set_Flxq_pre 70659926
translate_basecase 42364
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6436644

Generated by: LCOV version 1.16