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 30775-9d8a55740a) Lines: 2553 2925 87.3 %
Date: 2026-04-06 09:26:18 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449928
Fl2_inv_pre 197370
Fl2_mul_pre 17092553
Fl2_norm_pre 97118596
Fl2_pow_pre 671828
Fl2_sqr_pre 4908323
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76114
Fl_Flxq_log 35564
Fl_Xp1_powu 0
Fl_to_Flx 21930583
Flm_to_FlxV 2772
FlvV_polint_tree 2587716
Flv_Flm_polint 104560
Flv_inv 1744718
Flv_invVandermonde 153445
Flv_inv_i 1756724
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21067708
Flv_inv_pre_inplace 19343902
Flv_polint 1485438
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745920
Flv_roots_to_pol 841996
Flv_to_Flx 25490942
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 325148
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 293122
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28980
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171851
FlxV_to_Flm_lg 12971156
FlxV_to_FlxX 397987
FlxV_to_ZXV 609501
FlxV_to_ZXV_inplace 3032540
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844402
Flx_Fl_mul 9422860
Flx_Fl_mul_pre 20197356
Flx_Fl_mul_to_monic 11859515
Flx_Fl_sub 151690
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786219
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169617
Flx_Flxq_eval 791464
Flx_Flxq_eval_pre 2444878
Flx_Frobenius 86616
Flx_Frobenius_pre 13816023
Flx_Laplace 27491
Flx_Newton 54383
Flx_add 73786393
Flx_addmulmul 358985
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527747
Flx_blocks_Flm 12970014
Flx_composedprod 0
Flx_composedsum 27700
Flx_convol 0
Flx_deflate 421311
Flx_deriv 23013790
Flx_diff1 660399
Flx_digits 0
Flx_div_by_X_x 36544898
Flx_divrem 30445176
Flx_divrem_Barrett 604292
Flx_divrem_Barrettspec 905337
Flx_divrem_basecase 61230514
Flx_divrem_pre 78661494
Flx_double 1179459
Flx_equal 26144072
Flx_eval 20397508
Flx_eval2BILspec 603317
Flx_eval_powers_pre 48570173
Flx_eval_pre 136122819
Flx_extgcd 857084
Flx_extgcd_basecase 6183919
Flx_extgcd_halfgcd 126070
Flx_extgcd_pre 6183896
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109541
Flx_gcd 35022068
Flx_gcd_basecase 85782280
Flx_gcd_pre 87438833
Flx_get_red 14506377
Flx_get_red_pre 97099071
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087519
Flx_halfgcd_all_pre 1087521
Flx_halfgcd_pre 873160
Flx_halfres_basecase 1094596
Flx_halfres_i 1114564
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161002
Flx_integ 0
Flx_integXn 423373
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134385
Flx_invBarrett_pre 158846
Flx_invLaplace 54661
Flx_is_l_pow 8163
Flx_is_smooth 74256
Flx_is_smooth_pre 118517
Flx_is_smooth_squarefree 126653
Flx_is_squarefree 9200538
Flx_lgrenormalizespec 2131260
Flx_matFrobenius 0
Flx_matFrobenius_pre 86555
Flx_mod_Xn1 31528
Flx_mod_Xnm1 4907679
Flx_mul 26705376
Flx_mul_pre 380308780
Flx_mulhigh_i 950307
Flx_mullimb 1187150906
Flx_mullimb_ok 3339634245
Flx_mulspec 386029165
Flx_mulspec_Kronecker 7366787
Flx_mulspec_basecase 346405009
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294057
Flx_mulspec_quartmulii 97164
Flx_neg 4175196
Flx_neg_inplace 1799550
Flx_negspec 4175205
Flx_normalize 64814629
Flx_powu 0
Flx_powu_pre 3896
Flx_recip 0
Flx_recipspec 7286853
Flx_red 1880445
Flx_rem 42204306
Flx_rem_basecase 797494595
Flx_rem_pre 923008777
Flx_renormalize 2161653990
Flx_rescale 1117
Flx_resultant 4740044
Flx_resultant_basecase_pre 14606044
Flx_resultant_pre 14608070
Flx_shift 27403404
Flx_shiftip 628719303
Flx_splitting 147212
Flx_sqr 370222
Flx_sqr_pre 273441530
Flx_sqrspec 273755430
Flx_sqrspec_Kronecker 670220
Flx_sqrspec_basecase 273888781
Flx_sqrspec_halfsqri 135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136550098
Flx_subspec 897775
Flx_to_Flv 66648473
Flx_to_FlxX 71405
Flx_to_ZX 38375280
Flx_to_ZX_inplace 36533544
Flx_to_int_halfspec 468589
Flx_to_int_quartspec 204546
Flx_translate1 663082
Flx_translate1_basecase 675144
Flx_triple 551294
Flx_unscale 0
Flx_val 4474732
Flx_valrem 28450830
Flxn_div 56619
Flxn_div_pre 56639
Flxn_exp 0
Flxn_expint 109549
Flxn_inv 1037
Flxn_mul 75990
Flxn_mul_pre 5183970
Flxn_mulhigh 527655
Flxn_recip 218096
Flxn_red 6366036
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 20704
Flxq_autpow_pre 69426
Flxq_autpow_sqr 47266
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112120
Flxq_autsum_pre 98582
Flxq_autsum_sqr 104909
Flxq_auttrace 0
Flxq_auttrace_mul 779677
Flxq_auttrace_pre 960264
Flxq_auttrace_sqr 652380
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519430
Flxq_inv 335790
Flxq_inv_pre 4183784
Flxq_invsafe 670454
Flxq_invsafe_pre 5326839
Flxq_is2npower 0
Flxq_issquare 404606
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 170637
Flxq_minpoly 45937
Flxq_minpoly_pre 809744
Flxq_mul 18079984
Flxq_mul_pre 191129494
Flxq_norm 443257
Flxq_order 97322
Flxq_pow 932844
Flxq_pow_Frobenius 22387683
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23435883
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232132
Flxq_powers_pre 22440169
Flxq_powu 488365
Flxq_powu_pre 24180501
Flxq_sqr 2763475
Flxq_sqr_pre 272443700
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212090
Flxq_transmul_init 1746294
RgXV_to_FlxV 7
RgX_to_Flx 2209617
Rg_to_F2 1715093
Rg_to_Fl 73085166
Rg_to_Flxq 3461451
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797399
ZXV_to_FlxV 0
ZX_to_Flx 171022415
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593665
ZpX_invLaplace_init 497
_Fl2_mul 1924200
_Fl2_pow 671815
_Fl2_rand 113834
_Fl2_sqr 4908397
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11771808
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146707852
_Flxq_neg 366572
_Flxq_one 22437960
_Flxq_pow 22380264
_Flxq_powu 68
_Flxq_powu_i 22927077
_Flxq_rand 6567
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266252401
bounded_order 394026
gener_Flxq 7201
get_Fl_threshold 2314305017
get_Flx_red 985973487
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507057
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 20997212
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 5622420
kron_unpack_Flx_bits_wide 5696506
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8471609
mkF2 27665016
monomial_Flx 941249
random_Flx 2646236
set_Flxq 68922
set_Flxq_pre 69351324
translate_basecase 688325
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6411608

Generated by: LCOV version 1.16